HP 4145A Service and user manual

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OPERATION AND SERVICE MANUAL

MODEL 4145A

SEMICONDUCTOR

PARAMETER ANALYZER

SERIAL NUMBERS

This manual applies to instruments with serial numbers prefixed 2149J- and above.

0 COPYRIGHT: YOKOGAWA-HEWLETT-PACKARD, LTD., 1982

9-1, TAKAKURA-CHO, HACHIOJI-SHI, TOKYO, JAPAN

Manual Part No. 04145-90000

Microfiche Part No. 04145-90050

Printed: AUG. 1984

l-5. The Semiconductor Parameter Analyzer is a fully automatic, high performance, programmable test instrument designed to measure, analyze, and graphically display the DC characteristics of a wide range of semiconductor devices, such as diodes, bipolar transistors, field-effect transistors, wafers, ICs, etc. Main applications include computer-aided design (CAD) of ICs, new device evaluation, materials evaluation, component selection for circuit design, incoming/outgoing inspection, semiconductor process control, quality control, and quality assurance. It is equipped with four programmable stimulus/measurement units @MU), two programmable voltage source units (Vs), two voltage monitor units (Vm), a fully interactive graphics

flexible-disc storage, softkeys, full arithmetic keyboard, and HP-IB. And it can be used on the bench or as part of a complete measurement system in the laboratory or on the production line.

l-6.

measurement, the 4145A has eight channels.

Channels 1 through 4 are stimulus/measurement units (SMU); channels 5 and 6 are voltage source units (Vs); and channels 7 and 8 are voltage

monitor units (Vm).

Each SMU channel has three modes of operation: voltage source/voltage monitor (I), and common (COM).

Source voltage and source current can be held

constant or swept linearly or logarithmically.

When used as a voltage source/current monitor

(V mode), each SMU can be programmed to output DC voltages from OV to +lOOV over three ranges--OV to f 19.999V, *2OV to +39.998V, and

+4OV to +lOOV--with a resolution of lmV, 2mV, and 5mV, respectively. source/voltage monitor (I mode), each SMU can be programmed to output currents from *lpA to

50fA max.), depending on the current range.

Current through the sample in V mode and voltage across the sample in I mode can be limited to prevent damage to the sample.

The two Vs channels are programmable voltage source& Output voltage can be held constant or

linearly or logarithmically swept from OV to

f 20V with 1mV resolution. The voltage sources are used when many bias and voltage sources are required.

For device stimulation and characteristics

+lOOmA over nine ranges, with a resolution of 1pA max.

Hewlet t-Packard Model 4145A

display,

source/current monitor (V), current

When used as a current

(current measurement resolution is

removable

_..

Of the six source channels (four SMUs, two Vs), any combination of three can be automatically swept in a linear or logarithmic staircase manner within the range of each channel. Hold times from 0 to 650 sec$ds and delay times from 0 to

6.5 seconds can be programmed. In a multi-channel sweep

functions as the main sweep channel. One of the other channels can be swept synchronously with the main channel, while one other channel can be swept subordinately to the main channel. SMUs not swept can be used as constant current or constant voltage sources.

The two Vm channels are used to measure voltages up to +2OV.

1-7. Measurement results, measurement setups, operator prompts, error messages, and diagnostics are displayed on a fully interactive,

microprocessor based graphics display.

Measurement results can be displayed in one of

four modes : graphic, list, matrix, and schmoo.

Front Panel softkeys provide a wide range of

automatic display control functions, such as

AUTO SCALE, STORE, RECALL, CURSOR,

MARKER, vertical and horizontal ZOOM, LINE

(two), GRAD, l/GRAD, X intercept, Y intercept,

and INTERPOLATE. Softkeys are used in all

phases of instrument operation--from

measurement

analysis-and make overall instrument operation

quick and easy.

By pressing the PLOT key or PRINT key, the presently displayed screen, whether a

measurement result or measurement setup, can be dumped directly onto an HP-IB compatible printer/plotter, providing clear, inexpensive hard copies. the limits of the printer/plotter, and if a

multi-pen plotter is used, multi-color plots can be made automatically. All PLOT and PRINT operations are done automatically, without a controller. Also, the 4145A’s display is equipped with X-Y-Z outputs to allow connection of a large-screen graphics display.

The 4145A is fluent in HP-GL (Hewlett- Packard

Graphics Language), permitting external control of its display via the HP-IB.

Cursor and marker positioning is user controllable via the front panel, and X-Yl-Y2 coordinates are digitally displayed on the CRT.

The plot area is user selectable within

setup

setup, one channel

to measurement

l-2

Model 4145A

SECTION I

L

L’

l-8. drive unit that accommodates a singlesided, single-density, 13.3cm (5.25 in.), 92K byte disc. One cleaning disc and five work-discs--each containing the necessary operating system software, four general purpose measurement programs, and 36.6K bytes of user area-are furnished with the 4145A. Up to 47 measurement setup programs or 11 sets of measurement data, plus auto sequence programs, can be stored (SAVE) in the user area and recalled (GET) later. Additional discs can be purchased to increase storage capability, and the entire user area of each disc can be quickly copied.

l-9. high speed microprocessor, under the control of the operating system software stored on each furnished flexible disc. Measurement setup, display mode selection, graphic scaling, diagnostics, operation guide, menu, and catalog are arranged as individual display pages. Paging is controlled by the MENU, PREV, and NEXT keys. Instructions, softkey labels, and error

messages and codes are displayed on each page.

Also, the 4145A is remotely controllable via the

HP-IB and the 4145A’s display can be used as an independent display via the HP-IB.

l-10. Furnished with the 4145A is the 16058A, a

specially designed shielded test fixture which connects to the 4145A’s rear panel. different interchangeable DUT boards are

provided, allowing measurement of diodes;

DIP ICs. The 16058A is equipped with a lightshielded lid to allow stable measurement of light-sensitive devices, such as photo diodes,

photo transistors, and photo resistors. Also, to

insure operator safety when potentially dangerous voltages are applied to a sample, a

warning will be displayed on the 4145A if the test fixture lid is open and measurement will not

be made until the lid is closed. For

user-fabricated test fixtures and jigs, a special

connector, four S-meter triaxial cables, and four

The 4145A is equipped with a flexible-disc

All instrument functions are handled by a

Eight

S-terminal and 4-terminal transistors; 8-pin, lo-pin, and 12-pin devices; and 18-pin and 24-pin

S-meter coaxial cables are also furnished.

l-l 1. SPECIFICATIONS

1-12. Complete specifications of the Model

4145A Semiconductor Parameter Analyzer are given in Table l-l. These specifications are the performance standards or limits against which the instrument is tested. The test procedures for the specifications are covered in Section IV, Performance Tests.

Data. Reference Data are not specifications but are typical characteristics included as additional information for the operator. When the 4145A

Semiconductor Parameter Analyzer is shipped

from the factory, listed in Table l-l.

1-13. SAFETY CONSIDERATIONS

1-14. The Model 4145A Parameter Analyzer has been designed to

conform to the safety requirements of an IEC

(International Electromechanical Committee) Safety Class I instrument and is shipped from the factory in a safe condition.

1-15. This operation and service manual contains information, cautions, and warnings which must be followed by the user to ensure

safe operation and to maintain the instrument in

a safe condition.

1-16. INSTRUMENTS COVERED BY MANUAL

1-17. Hewlett-Packard uses a two-section nine character serial number which is stamped on the

serial number plate (Figure 1-2) attached to the

instrument’s rear-panel. The first four digits and the letter are the serial prefix and the last five digits are the suffix. The letter placed between the two sections identifies the country where the instrument was manufactured. The prefix is the same for all identical instruments; it changes

only when a change is made to the instrument.

The suffix, however, is assigned sequentially and is different for each instrument. The contents of this manual apply to instruments with the serial number prefix(es) listed under SERIAL

NUMBERS on the title page.

Table l-2 lists Reference

it meets the specifications

Semiconductor

Figure l-2. Serial Number Plate.

l-3

SECTION I

-

Model 4145A

1-18. An instrument manufactured after the printing of this manual may have a serial number prefix that is not listed on the title page. This unlisted serial number prefix indicates the instrument is different from those described in

this manual. The manual for this new instrument may be accompanied by a yellow Manual Changes supplement or have a different manual part number. This supplement contains “change

information” that explains how to adapt the

manual to the newer instrument.

1-19. In addition to change information, the

supplement

may

contain information for correcting errors (called Errata) in the manual. To keep this manual as current and accurate as possible, Hewlet t-Packard recommends that you

periodically request the latest Manual Changes supplement. The supplement for this manual is

identified with the manual print date and part number, both of which appear on the manual’s title page. Complimentary copies of the

supplement

are available from HewlettPackard. If the serial prefix or number of an instrument is lower than that on the title page of this manual, see Section VII, Manual Changes.

l-20. For information concerning a serial number prefix that is not listed on the title page or in the Manual Change supplement, contact the nearest Hewlett-Packard office. -j_

l-23. ACCESSORIES SUPPLIED

l-24. The Model 4145A

Semiconductor *-/

Parameter Analyzer, along with its furnished

accessories, is shown in Figure l-l.

The

Additionally, a spare fuse (HP Part No.

21 lo-0015 or 2110-0305) and an Operation and Service Manual (HP Part No. 04145-90000) are furnished with the 4145A.

l-25. ACCESSORIES AVAILABLE

l-26. The Model 16261A* Software Disc Set, containing five software discs, is available when

extra discs are required.

l-27. Warranty Limitation for Accessories

l-28. The Personality

16058-60003)

and eight

16058 6O~~~~““furn~~~ 16058-60004 through -

Board (P/N:

.

with the 16058A Test Fixture are warranted against defects in material and workmanship for a period of three months from the date of delivery. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace components which prove to be defective. This warranty does not apply to defects resulting from

improper use or

inadequate maintenance.

1-21. OPTIONS

l-22. Options are modifications to the standard instrument that implement the user’s special requirements for minor functional changes. The 4145A has four options :

Option 907 : Front Handle Kit.

Furnishes Carrying handles for both ends of front-panel.

Option 908 : Rack Frange Kit.

Furnishes flanges for rack

mounting

for both ends of

front-panel.

Option 909 : Rack Flange and Front Handle

Kit. Furnishes both front handles

and rack flanges for instrument.

Option 910 : An extra copy of the Operation

and Service Manual.

Installation procedures for these options are given in Section II.

-,- - .-- -.

l-4

Model 4145A

---

SECTION I

Table l-l. Specifications (Sheet 1 of 8)

* Specifications listed below are for the 4145A only.

the 16058A Operation Note.

GENERAL INFORMATION

Basic Functions :

Measures the DC current through voltage-biased devices and the DC voltage across current-biased devices; Arithmetic calculation; Displays measurement results and calculation results on a built-in CRT display; graphics analysis capabilities; storage and recall of measurement setups, measurement data, and auto-sequence programs.

Source and Measurement Units :

Stimulus/Measurement Units (SMU) : Four SMU channels. Each SMU can be

programmed to function as a variable or constant DC voltage source/current monitor or as a variable or constant DC current source/voltage monitor.

Voltage Sources (Vs) : Two Vs channels.

function as a variable or constant DC voltage source.

Voltage Monitors (Vm) : Two Vm channels. Each Vm can measure DC

voltages up to +2OV.

^I SOURCE/MEASUREMENT FUNCTIONS

For 16058A specifications, refer to

c

Each Vs c?an be programmed to

Measurement and output accuracies are specified at 23 O +5 OC after the instrument has been allowed to warm up for at least 40 minutes, with AUTO CAL set to ON, INTEG TIME set to SHORT and referenced to SMU common. Specified accuracy doubles for operation between 10 O C and 40 ’ C.

Stimulus/Measurements Units (SMU) : Four SMU channels. Each SMU measures

current when operating as a voltage source, or measures voltage when operating as

a current source. Source and measurement ranges, resolution, and accuracy

specifications are given in the tables below.

Accuracy specifications in the below tables are given as +n% of specified output or

measured value, +n% of range value. 10 is output current (I), Vo is output voltage

w.

Vo 1 t age Range Resolution

+2ov 1mV

+4ov 2mV

+lOOV

5mV

Accuracy

0.1%+0.05%+0.4fi*Io

Max. Current

lOOmA

SOlIlA

2omA

l-5

SECTION I Model 4145A

Table l-l. Wecifications (Sheet 2 of 8)

Current Range

I

+lOOmA lOOnA

+lOmA

+1000l~A

I

111 0.5%+(0.1+0.2*Vo/100)%

111 1%+(0.1+0.2*Vo/100)%+5pA

+1 OOuA

*lOuA

Resolution

I

1 OpA

I

1 OOnA

I

II-IA

1 OnA

I

0.3%+(0.1+0.2*Vo/100)%

I

Accuracy

Max. Voltage

2ov (>SOmA)

4ov (>2OmA)

1oov (62OmA)

Setting Resolution :

Measurement Resolution :

Ranging :

Current/Voltage Limiting (Compliance) :

Compliance Range : Current, 50pA to maximum allowable output current of

Accuracy: Current compliance, accuracy of current source+1 % of range +lOpA;

Residual Resistance (Voltage Source/Current Measurement Mode) : 0.452.

Input Resistance (Current Source/Voltage Measurement Mode) : Z- 101k.

Capacitive Load : 6 1 OOOpF.

Automatic.

Voltage compliance, accuracy of voltage source.

Voltage, 4*1/2 digits (1mV max.); Current, 4 digits (1pA max.).

Voltage, 4*1/2 digits (1 mV max.);

Current, 4 digits (50fA max.).

Current output from an SMU operating as a voltage source and voltage output from an SMU operating as a current source can be

limited.

each voltage range; Voltage, OV to maximum allowable output voltage of each current range.

l-6

Model 4145A

SECTION I

Table l-l. Snecifimtions (Sheet

3

of 8)

Voltage Sources (Vs) : Two Vs channels. Each Vs can be programmed to function

as a variable or constant DC voltage source. Output ranges, resolution, and accuracy specifications are given in the table below.

Output Voltage Range Resolution

+2ov 1mV 0.5% of setting +lOmV lOmA

Accuracy

Max. Output Current

Output Impedance : Less than 0.2R

Capacitive Load : 2 1OOOpF

Voltage Monitors (Vm) :

Two Vm channels. output ranges, resolution,

and

accuracy specifications are given in the table below.

Measurement Voltage Range

Resolution

I

1OOPV

1mV

I

0.5% of reading + 1OmV

I

0.2% of reading + 1OmV

I

Accuracy

1

I

Input Impedance : lMR+ 1%

Capacitance in Parallel with Output : 150pF+ 10 %

l-7

SECTION I Model 4145A

Table l-l. Snwifications (Sheet 4

of 8)

SPECIFICATIONS COMMON TO ALL CHANNELS

Maximum Withstand Voltage :

1OOV (SMU, guard terminal, Vs, and Vm)

Maximum Voltage Between Common and GND : Less than +42V.

Source Modes (SMUs Only) : V (voltage source/current monitor),

I (current source/voltage monitor), and COM*.

Source Functions (SMUs Only) :

VAR 1, staircase sweep; VARl’, synchronous (VARl) staircase sweep; VARZ, subordinate (VARl) staircase sweep; CONST, constant source (voltage or current).

* : In COM mode, output voltage is OV and compliance is 105mA.

Voltage/Current Sweep : Output from each SMU (voltage or current) and each Vs

(voltage) can be swept by assigning source function VARl, VARl’, or VARZ.

Max. Number of Steps : 512 in single-sweep measurements, up to 575 in

multi-sweep measurements.

VARl : Main sweep. Linear or logarithmic sweep is selectable.

Linear Sweep :

Staircase sweep in accordance with the user specified

START, STOP, and STEP values.

Log Sweep :

Staircase sweep in accordance with the user specified START

and STOP values-and selected LOG step (10, 25, or 50 points per decade).

VAR2 :

Subordinate linear staircase sweep in accordance with the user speci-

fied START, STEP, an NO. OF STEPS values.

VAR2 source channel output is

incremeneted one STEP each time the VARl source channel completes one sweep.

VARl’ : Staircase sweep synchronized with the VARl sweep. Sweep is made with

a user specified, fixed ratio or offset value. VARl’ output is calculated as :

VARl’ = a x VARl (fixed ratio) VARl’ = b + VARl (fixed offset)

where “al* is the user-specified ratio (from 20.01 to +lO) and ‘lb” is the user-specified offset value. Ratio and offset must be such that the VARl’ source channel does not exceed its maximum output limit.

HOLD TIME :

0 to 650 seconds, 1Oms resolution (max.). Accuracy is _+0.5%+9ms.

DELAY TIME : 0 to 6.5 seconds, lms resolution. Accuracy is +O.l%+5xN for

GRAPHICS and SCHMOO plots and +O.l%+lOxN for LIST and MATRIX displays. Where N is the number of measurement channels used in the measurement.

Output Sequence : The order in which the source channels begin output is fully

programmable.

l-8

Measurement Modes : SINGLE, REPEAT, APPEND

Integration Time (at each measurement point) : SHORT, 3.6ms; MED, 20ms at 50Hz

line frequency, 16.7ms at 60Hz line frequency; LONG, 16 times MED.

Model 4145A SECTION I

Table l-l. Specifications (Sheet 5 of 8)

DISPLAY FUNCTIONS

Display : CRT. Electrostatic focus and deflection, post accelerated.

minized P-3 1 phosphor.

Screen Size : 16cm (6.25in) diagonal. Screen Resolution : 2048 x 2048 points.

Display Characters and Symbols :

comma ( ) @ R O

entered frAm9 th’e iront(W&,l 5 % # y CL k, e7 my I-I, n, P, +, -) *, /, J- 7 A . All are

Display Modes : GRAPHICS, LIST, MATRIX, SCHMOO, and TIME DOMAIN.

GRAPHICS Display : Two-axes (X-Y) or three-axes (Y-Y, -Y2) plot of

measured parameters and USER FUNCTION calculations.

LIST Display : Used in conjunction with VARl sweep. Up to six measure-

ment parameters and USER FUNCTION results can be displayed for each step

of the VARl source channel.

MATRIX Display : Used in conjunction with VARl and VAR2 sweeps. Up to

six columns of sweep-dependent measurement results or USER FUNCTION results can be displayed.

SCHMOO Display : Used in conjunction with VARl and VAR2 sweeps.

Sweep-dependent measurement results or calculation results are displayed on

an X-Y-Z graph.

.

Upper-case

alphabetic characters, numerics,

Alu-

TIME DOMAIN Display : Measurement and calculation results are displayed

on a two-axes (X-Y) or three-axes (X-Y, -Y2 ) graph as a function of time. VARl sweep is replaced by time.

Parameters : Initial Wait Time, 0 to 100 seconds (1 Oms resolution); Measurement Interval, 1Oms to 10 seconds (1 Oms resolution); Number of

Readings, 5 12.

l-9

SECTION I

Model 4145A

TRhle l-l. Srwcifimtions (Sheet G of 8)

ARITHMETIC AND ANALYSIS FUNCTIONS

Arithmetic Functions : Arithmetic

directly from the front panel. Results are displayed on the CRT.

Arithmetic Operators : +, -, *, /, /- , EXP (Napierian constant), LOG

(common log), LN (natural log), ** (exponentiation), ABS (absolute), EEX

(scientific notation), and A (differential calculation).

Keyboard Operation : Arithmetic expressions are executed by pressing

the EXECUTE key. Results are displayed on the CRT.

USER FUNCTION : Up to two USER FUNCTION can be defined as arith-

metic expressions. USER FUNCTIONS are executed during measurement and the results are displayed with measurement results.

Physical Constants : Three commonly used physical constants are perma-

nently stored in memory. The stored value of each constant has seven-digit

accuracy but only the five most significant digits are displayed.

q : Electron Charge, 1.6O2189x1O-1g C k : Boltzmann’s Constant, 1.380662~10 -2 3 J/ O K e : Dielectric Constant of vacuum, 8.854185~10 -12F/m.

Engineering Units : m (10V3 ), p (lo+ ), n (lo-’ ), p (10-12)

Analysis Functions :

Overlay Graph Comparison :

recalled to obtain an overlay comparison of two measurements. -A SCHMOO

plot can also be stored, but when the RECALL key is pressed, only the stored

plot is displayed. Pressing RECALL a second time redisplays the previous plot. Only one set of data can be stored and scaling information is not

included.

expressions can be entered and executed

A GRAPHIC plot can be stored and later

l-10

Auto Retrieve Function : Measurement data obtained in any display mode

is automatically redisplayed whenever the display mode is changed. However, when the value of a measurement setup parameter is changed, all

measurement data is cleared.

MARKER :

On a GRAPHICS plot, the MARKER can be moved along a plotted curve or line. The X, Y1 , and Y2 coordinates at the MARKER location are digitally displayed on the CRT.

INTERPOLATE : Allows positioning of the MARKER between two measurement

points. The X, Y1, and Ye coordinates at the MARKER location are estimated and digitally displayed on the CRT.

CURSOR : On a GRAPHICS plot, the CURSOR is two intersecting and

perpendicular lines which can be positioned at any point on the graph. There

are two GRAPHICS cursors : LONG and SHORT. The X, Y 1, and Y2 coordinates at the CURSOR location are digitally displayed on the CRT.

On a SCHMOO plot the CURSOR highlights the symbol at a measurement point and only the Z-axis value is digitally displayed on the CRT.

On LIST and MATRIX displays the CURSOR is a moveable pointer ( b ).

Model 4145A

SECTION I

T:,hlp l-l _ Snp~ifimtinm fS.hppt 7 nf $2)

A--..- A A. -p----‘- - .,*-....., \- ..--- , _a .,,

AUTO SCALE : GRAPHIC plots can be automatically resealed after meas-

surement, providing optimum display of measurement results.

ZOOM Function (t-t, +-+ , 3 , $ ) : Used in conjunction with

the CURSOR on GRAPHIC plots. Expands (+-3, i ) or contracts (+-t, t ) the graph in the indicated direction and in reference to the CURSOR location.

MOVE WINDOW : Repositions the LONG or SHORT CURSOR to the exact center

of the plot area and moves displayed plots in reference to the CURSOR.

LINE : Draws a straight line between two moveable cursors.

X and Y axes intercepts are digitally displayed, as are the line gradient (GRAD) and gradient reciprocal (l/GRAD) values.

MASUREMENT/DISPLAY SETUP AND STORAGE FUNCTIONS

Measurement/Display Setup : Interactive fill-in-the-blank programming of channel

definitions, source outputs, and measurement/display modes.

Measurement Setup Storage : The existing measurement setup can be stored in

the user-area on the flexible disc and recalled later by using the SAVE and GET keys, respectively.

Measurement Data Storage : The existing measurement results can be stored in

the user-area on the flexible disc and recalled later by using the SAVE and GET key, respectively.

Auto-Sequence Program : A series of different measurements can be programmed

for automatic execution. The maximum number of program steps is 24, and useable commands are GET, SINGLE, SAVE D, PLOT, PRINT, PAUSE, WAIT, and

PAGE.

Storage Medium : 5.25 in. single-sided, single-density, soft-sectored mini flex-

ible disc.

User-Area : 92K bytes.

Number of User Records : 131

Record Allocation : Measurement setup (file type P), 3 records;

Measurement data (file type D), 12 records; Auto-sequence program (file type S), 1 record.

SECTION I

Model 4145A

Tahla l-l

Cnonifinotinnc

(Chant Q nf Q\

GENERAL SPECIFICATIONS

Data Input/Output :

External CRT Analog Output : From 0 to +l Vdc’, X and Y outputs (in

series with approx. 330R) Z output (in series with approx. 240R), via rear panel BNC connectors. Frequency Bandwidth, DC - 2MHz.

External Plotter/Printer Output : Measurement data and all data appear-

ing on the CRT may be output via the HP-IB to an HP plotter/printer operated in the LISTEN ONLY Mode. Output is initiated using the PLOT or PRINT key.

HP-GL Control : The CRT of the 4145A may be program controlled in the

Graphics Display Mode via an HP-IB compatible Controller.

HP-IB and Remote-Control Functions :

The 4145A may be interfaced to any HP

controller or other instrument having HP-IB interface capability. (HP-IB is

Hewlett-Packard’s implementation of IEEE-488 and ANSI-MC.l.l standards.)

Self -Test Function :

At power ON, the 4145A automatically verifies its own operational status. HP-IB and DIAGNOSTICS page allow Self-Test to be performed at any time.

Operating Temperature Range: 10°C to+40°C;670% RH(40OC)

Permissible Temperature Change:51 O C/5 min.; Maximum Wet-bulb temperature : 29 O C

Power Requirements : 199/120/22OV+lO% : 240V -10% + 5%;

48 - 66Hz; Max. 270VA

Dimensions : 426W x 235H x 612D (mm) (approx.)

Weight : Approx. 27 kg

Approx. 33kg (incuding accessories)

Model 4145A

SECTION I

Tnhlo l-9 Rnfnrnnna nata (Chant 1 r\f ‘2)

REFERENCE DATA

(The following information is reference data only. does it include Test Fixture specifications.)

Measurement Time : (Response time

measurement

Response Time : The following calculation is applicable where current range

does not change (settling and set-up time + SMU wait time).

Current Range

I

Ranging Time : 4ms - 74ms (depending on range)

Measurement Time :

Settling and

Set-Up

(Ranging time must be added.)

Time

I

Settling and Set-Up Time

I

Delay Time

+ ranging time + integration time)/1 point

It is not guaranteed specifications, nor

SMU Wait Time

I

Example : \ Minimum measurement time = 2.7ms + 0.2ms + 3.6ms = 6.5ms. In the d

Graphics Display Mode, write time (L5.6ms) must be added.

SECTION I Model 4145A

Table l-2. Reference Data (Sheet 2 of 3)

STIMULUS/MEASUREMENT UNIT (SMU)

Offset Current when operated as a Voltmeter : 6pA + 2pA x Vo/lOO

Offset Voltage when operated as a Current Meter : 1OmV + 0.4Q x IO

Noise Characteristics : (all values typical)

Voltage Source Noise : 0.01% of range (RMS)

Current Source Noise : 0.1% of range+3pA+O.OlpAxCg (RMS)

(Cg : Guard capacitance in pF) Voltage Monitor : 0.02% of range (peak-to-peak) Current Monitor : 0.3% of range + 1OpA

(peak-to-peak)

Output Overshoot : (all values typical)

Voltage Source Overshoot : 5mV

Current Source Overshoot : 1% or less

Current Range Switching Transient Noise : (All values typical)

Range Increment :

Range Decrement : When switching into 1OnA or 1nA range, 1OmV + lOO/(lO +

Guard Capacitance : 5 7OOpF

Guard Potential Offset : 1mV (typical)

Guard Current Induced Potential Error : 1OORxIg (Ig = guard current)

Voltage Sources (Vs)

Output Noise : 6 mVrms (typical)

Voltage Monitors (Vm)

Noise Level : 0.3mVp-p at 2V-range (when Integration time is set to MED or

0.01% of voltage range +lOmV

Cx)mV where Cx = load capacitance (pF); when switching into

all other ranges, 10mV.

LONG), 3mVp-p at 20V range.

REFERENCE DATA COMMON TO ALL UNITS

1-14

Noise Rejection : (Integration time set to MED or LONG.)

Normal Mode Rejection : L 60dB (typical)

Common Mode Rejection : (all values typical)

Current Source/Measurement : 2 lpA/lV

Model 4145A SECTION I

PTFE

Table l-2. Reference Data (Sheet 3 of 3)

ACCESSORIES FURNISHED WITH 4145A

16058A Test Fixture (includes the following subcomponents)

16058-60003 16058-60004 16058-60005 16058-60006 16058-60007 16058-60008 16058-60009 16058-60010 16058-60011 16058-61600 16058-61601

Personality Board

f

kage)

Socket Board (1 O-pin package)

Socket Board (12-pin package) Connection Cable (large-to-small), 12 ea. Connection Cable (small-to-small), 8 ea. Miniature Clip Lead, 8 ea. Triaxial Cable (1.5m), 4 ea. Fixture System Cable Accessory Case

16058-61602 04145-60001 04145-61622 Triaxial Cable (3m), 4 04145-61630 BNC Cable (3m), 4 ea.

16058-61603

16058-61604

16058-60100

Connector Plate

ea.

04145-61623 Shorting Connector 04145-61100

Software Discs (5 per box)

(including P/N 9164-0168 Head Cleaning Disc)

OPTIONS

Option 907 : Front Handle Kit (HP P/N 5061-0091)

Option 908 : Rack Flange Kit (HP P/N 5061-0079)

Option 909 :

Rack and Handle Kit (HPP/N 5061-0085)

Option 9 10 : Extra Manual(HP P/N 04145-90000)

SECTION I

PTFE

Table l-3. Accessories Supplied (Sheet 1 of 5)

Shielded Test Fixture for measurement of discrete components.

Following subcomponents are furnished with the 16058A.

Model 4145A

Equipped with

16058-60003 16058-61603 Triaxial Cables,

16058-61604 System Cable Socket Board/Connection Cable Set* (Contents are shown below.)

* Socket Board/Connection Cable Set (included in the 16058A)

Personality Board

1.5m, 4 ea.

1-16

No.

Dimension of Socket (Unit in mm)

20

3

0

$8

4

5

0

0 0 0 0

0

& b

0.6

k

HP P/N and Description

Blanon board for measurement of

high resistance devices.

Socket Board with two sockets. For measurement of four-pin devices, such as transistors.

4145A

SECTION I

Table l-3. Accessories Supplied (Sheet 2 of 5)

No.

0

3

0

4

5

0

Dimension of Socket (Unit in mm)

2.54

on -- -w-w

II0 B-B- - - II

I

II

16.54

2.54

P II11 --w--w- II

9

no

--m---m 0

Q-El

w

20

30

-

-.e

1.14

lt-

M

HP P/N and Description

16058-60006 :

Socket Board for 24 pin DIP ICs.

16058-60007 : Socket Board for 18 pin DIP ICs.

16058-60008 :

Socket Board with two pairs of sockets for measurement of axial lead devices such as diodes.

0

6

0

8

16058-60009 :

Socket Board with an 8-pin socket.

16058-60010 :

Socket Board with a lo-pin socket.

7

16058-60011 :

Socket Board with a 12-pin socket.

1-17

SECTION I

Model 4145A

Table l-3. Accessories Supplied (Sheet 3 of 5)

No. Dimension of Socket (Unit in mm)

Cable length : Approx. 115 16058-61600 :

9

0

Cable length : Approx. 115 16058-61601 :

10

0

Cable length : Approx. 115 16058-61602 :

11

0

HP P/N and Description

Connect ion Cable (large-t o-Small) used for interconnecting the Personality Board to the Socket Board. Twelve cables are furnished.

Connect ion Cable (small-to-small) used for interconnecting Switch to the Socket Board. Eight cables are furnished.

Miniature Clip Lead used for direct connection to DUT. Eight leads are furnished.

the Connect ion

12

0

Configuration

16058-60100 : Carrying-case for all 16058A accessories.

Description

Connector Plate (04145-60001) :

Connector Plate for measurements made

without the 16058A. For example, direct connection for a wafer probe. Dimensions are given below.

1-18

Model 4145A

SECTION I

Table l-3. Accessories Supplied (Sheet 4 of 5)

Configuration

Description

Three-meter triaxial (m) Cable (04145-61622):

Triaxial (m) cable for connection between the 4145A’s SMU terminals and the Connector Plate. Cable length is 3m. Four cables are furnished. Figure 3-35 for the usage.

Three-meter BNC (m) Cable (04145-61630):

BNC (m) cable for connection between the 4145A’s Vs or Vm terminals and the

Connector Plate. Cable length is 3m. Four cables are furnished. Refer to Figure 3-35 for the usage.

Refer to

Shorting Connector (04145-61623) :

Allows SMU output voltage to exceed

+42V when the 16058A Test Fixture is not used. With the Shorting Connector connected to the System Cable connector on the rear panel, the instrument’s _ fixture-lid-open detector is disabled, and the instrument lid-closed condition.

A POTENTIAL SHOCK HAZARD EXISTS WHEN THE SHORTING CONNECTOR IS CONNECTED TO THE 4145A. DO NOT TOUCH

THE OUTPUT TERMINAL OR

INNER CONDUCTOR OF SMU DURING MEASUREMENT.

assumes a fixture-

WARNING

SECTION I

-3

--

Table l-3. Accessories Supplied (Sheet 5 of 5)

Configuration Description

1

Software Discs (04145-61100) :

Disc set includes 5 Software Discs, Cleaning Disc (P/N: 9164-0168), labels, and

write-protect tabs. If extra discs are required, Set. It contains 5 software Discs.

order the 16261A Software Disc

Note

Model 4145A

rA %au

Software

purchased individually.

discs cannot be

l-20

---

Model 4145A

SECTION II

INSTALLATION

Z-l. INTRODUCTION

2-2. This section provides installation instruc-

tions for the Model 4145A Semiconductor

Parameter Analyzer. This section also includes information on initial inspection and damage claims, preparation for using the 4145A, and packaging, storage, and shipment.

2-3. INITIAL INSPECTION

2-4. The 4145A Semiconductor

Analyzer, as shipped from the factory, meets all the specifications listed in Table l-l. Upon receipt, damage. If the shipping container or cushioning

material is damaged, it should be kept until the contents of the shipment have been checked for completeness and the instrument has been checked mechanically and electrically. The contents of the shipment should be as shown in

Figure l-l. The procedures for checking the general electrical operation are given in Section III (Paragraph procedures for checking the 4145A Semiconductor Parameter Analyzer specifications are given in Section IV. First, do the self test. If the 4145A is electrically questionable, then do the Performance Tests to determine whether the 4145A has failed or not.

inspect the shipping container for

3-10 SELF ,,,TEST) and the

Parameter

against

its

WARNING

IF THE INSTRUMENT IS TO BE

ENERGIZED VIA AN EXTERNAL AUTOTRANSFORMER UNIT FOR VOLTAGE REDUCTION, BE SURE THAT THE COMMON TERMINAL IS CONNECTED TO THE NEUTRAL POLE OF THE POWER SUPPLY.

2-8. Line Voltage and Fuse Selection

CAUTION

BEFORE TURNING THE 4145A LINE SWITCH TO ON, VERIFY THAT THE INSTRUMENT IS SET TO THE VOLTAGE OF THE POWER TO BE SUPPLIED.

2-9. Figure 2-l provides instructions for line voltage and fuse selection. selection switch and the proper fuse are factory

installed for 100 or 120 volts ac operation.

CAUTION

USE PROPER FUSE FOR LINE VOLTAGE SELECTED.

The line voltage

If the contents are incomplete, if there is

mechanical damage or defects (scratches, dents, broken switches, etc.), or if the performance does not meet the self test or performance tests, notify the nearest Hewlett-Packard office (see list at back of this manual). The HP office will arrange for repair or replacement without

waiting for claim settlement.

2-5. PREPARATION FOR USE

2-6. POWER REQUIREMENTS

2-7. The 4145A requires a power source of 100, 120, 220 Volts ac +lO%, or 240 Volts ac +5%-lo%,

48 to 66Hz single phase; power consumption is

270VA maximum.

CAUTION

MAKE SURE THAT ONLY FUSES FOR THE CURRENT AND OF THE SPECIFIED TYPE ARE USED FOR REPLACEMENT. THE MENDED FUSES AND THE

SHORT-CIRCUITING OF

HOLDERS MUST BE AVOIDED.

2-10. LINE FREQUENCY FILTER

2-11. To reject the effects of line-frequency noise, set the FILTER switch on the rear panel to the frequency of the ac power source.

REQUIRED RATED

USE OF

FUSE-

2-l

SECTION II

Model 4145A

2-12. POWER CABLE

2-13. To protect operating personnel,

National Electrical Manufacturer’s Association (NEMA) recommends that the instrument panel and cabinet be grounded. The Model 4145A is equipped with a three-conductor power cable

which, when plugged into an appropriate

receptacle, grounds the instrument. The offset

pin on the power cable is the ground wire.

2-14.

operating

outlet, use a three prong to two prong adapter

(HP Part No.

grounding tab on

ground.

cords, which may be used in various countries including the standard power cord furnished with

standards for power plug, power cord color,

To preserve the protection feature when

the instrument from a two Contact

1251-8196) and connect the

the adapter to power line

CAUTION

THE MAINS PLUG MUST ONLY BE INSERTED IN A SOCKET OUTLET PROVIDED WITH A PROTECTIVE EARTH CONTACT. THE TECTIVE ACTION MUST NOT BE

NEGATED BY THE USE OF AN

EXTENSION

WITHOUT PROTECTIVE CONDUC-

TOR

(GROUNDING).

2-15. Figure 2-2 shows the available power

the instrument. HP Part number, applicable

electrical characteristics and countries using each power cord are listed in the figure. If

CORD (POWER CABLE)

PRO-

the

assistance is needed for selecting the correct power cable, contact the nearest Hewlett-

Packard off ice.

2-16. OPERATING ENVIRONMENT

2-17. Temperature.

operated in temperatures from +lO°C to +40 OC.

2-l 8. Humidity. The operated in environments with relative humidities to ‘7 0% at 40 O C.

instrument should be protected from

temperature extremes which cause condensation

within the instrument.

2-19.

2-20. The HP Model 4145A can be operated on the bench or in a rack mount. The 4145A is ready for bench operation as shipped from the

factory.

instrument stand is used. For use, the instrument

stands are designed to be pulled towards the

front of instrument.

be operated as a component of a measurement

system.

INSTALLATION INSTRUCTIONS

For bench operation a two-leg

2-21. Installation of Options 907, 908 and 909.

2-22. The 4145A can be installed in a rack and

Rack mounting information for the

4145A is presented in Figure 2-3.

The instrument may be

instrument may be

However, the

IOOV OPERATION 12OV OPERATION

22ov-

ir

240vwi r Ioovw

12ov* 22ove 12ov- 22ow 12ov-

240V N

cll

Fuse : 2.5A 250V 2, (HP P/N: 2110-0015)

Figure 2-l. Voltage and Fuse Selection.

IOOV-

220V OPERATION

240vwl TOOV-

ir

Fuse :

(HP P/N : 2110-0305)

1.25A 250V CL

240V OPERATION

Model 4145A

SECTION II

OPTION 900

Plug : BS 1363A, 250V Cable : HP 8120-1351

OPTION 902

Earth

Plug : CEE-VII, 250V Cable : HP 8120- 1689

United Kingdom OPTION 901

4. Neutral

European Continent

d- Line

OPTION 903

Australia/New

/ Earth

*

3

Line

Plug: NZSS 198/AS C112, 250V Cable : HP 8120-l 369

/ Earth

Neutral

Plug: NEMA 5-15P, 125V, 15A Cable : HP 8120- 1378

1 Line

Zealand

y Neutral

U.S./Canada

OPTION 905*

Neutral

Plug: CEE 22-VI, 250V Cable : HP 8120-1396

OPTION 912

Neutral

Plug : DHCR 107, 220V Cable : HP 8120-2956

-1,

/ Line

A Earth

Any country

Line

Earth

Denmark

OPTION 906

.c.y

ANeutral

Q

Line / -Earth

Plug: SEV 1011.1959-24507 Type 12, 250V Cable : HP 8120-2104

Switzerland

* Plug option 905 is frequently used for

interconnecting system components and

peripherals.

NOTE: Each option number includes a 1 family 1 of cords and connectors of various materials

and

plug

body

configurations (straight, 90 O etc.)

Figure 2-2. Power Cables Supplied

2-3

SECTION II

Model 4145A

2-23. STORAGE AND SHIPMENT

2-24. ENVIRONMENT

2-25. The instrument may be stored or shipped

in environments within the following limits:

Storage :

Temperature •~~~..~~~ -22 O C to +55 O C

(+4 O C to +50 ’ C with discs)

Humidity . . . . . . . . . . . . . . . 8%

to 80% (RH)

Shipment :

Temperature l ****=*** -40 ’ C to +62 ’ C

(-40 O C to +50 ’ C with discs)

The instrument should be protected from temperature extremes which cause condensation inside the instrument.

2-26. PACKAGING

d.

Seal shipping container securely.

e. Mark shipping container FRAGILE to

ensure careful handling.

f. In

any

correspondence, refer to

instrument by model number and full serial number .

d

2-2 7. Original Packaging. Containers and

materials identical to those used in factory packaging are available from Hewlett-Packard. If the instrument is being _-returned to

Hewlett-Packard for servicing, attach a tag indicating the type of service required, return address, model number, and full serial number. Also mark the container FRAGILE to assure careful handling. In any correspondence, refer to the instrument by model number and full serial number.

2-28. Other Packaging. The following general instructions should be used for re-packing with commercially available materials:

a. Wrap instrument in heavy paper or

plastic.

office or service

If shipping to Hewlett-Packard

center, attach tag indicating type of service required, return address, model number, and full serial

number.

Use

b.

strong shipping container. A double-wall carton made of 350 pound test material is adequate.

2-4

Use enough shock absorbing material (3 to

C.

4 inch layer) around all sides of instrument to provide firm cushion and prevent

movement inside container.

Protect control panel with cardboard.

Model 4145A

SECTION II

Option

907

908

909

Kit

Part Number

Handle Kit Front Handle 5061-009 1 Trim Strip

Rack Flange Kit 5061-0079

Rack Flange & Handle Kit 5061-0085

Parts Included

X8-32 x 3/8 Screw 2510-0195

Rack Mount Flange X8-32 x 318 Screw

Front handle Rack Mount Flange X8-32 x 3/8 Screw

Part Number

@ 5060-990 1 @ 5020-889 8 2

@ 5020-8864

2510-0193 6

@ 5060-990 1 @ 5020-8876 2

2510-0194 6

1. Remove adhesive-backed trim strips @ from side at right and left front of instrument.

2. HANDLE INSTALLATION : Attach front

handle @ to sides at right and left front of instrument with screws provided and attach trim @to handle.

3. RACK MOUNTING : Attach rack mount

flange @ to sides at right and left front of instrument with screws provided.

I

Q’ty

2

6

2

Remarks

9.525mm

15.875mm

4. HANDLE Attach front handle @ and rack mount flange @ together to sides at right and left front of instrument with screws provided.

5. When rack mounting (3 and 4 above), remove all four feet (lift bar at inner side

of foot, and slide foot toward the bar).

Figure 2-3. Rack Mount Kit.

AND RACK MOUNTING :

2-5

Model 4145A

SECTION III

3-l. INTRODUCTION

3-2. This section provides all the information necessary to Semiconductor Parameter Analyzer. Included

are descriptions of the front and rear panels, graphics display, lamps, and connectors; discussions on

measuring techniques for typical applications;

and instructions on the instruments self-test

function and HP-IB capabilities. A breakdown of the contents of this section is given in Figure 3-l. Warnings and cautions are given throughout; they must be observed to insure operator safety

and continued instrument serviceability.

BEFORE THE INSTRUMENT IS BEFORE THE INSTRUMENT IS TURNED ON, ALL PROTECTIVE EARTH TERMINALS, EXTENSION THE VOLTAGE OF THE POWER CORDS, AUTO-TRANSFORMERS AND somcx (MAINS), 0R DAMAGE ~0

DEVICES CONNECTED TO

INSTRUMENT MUST BE CONNECTED

operate the Model 4145A

operating procedures and

WARNING CAUTION

THE

we

TO A PROTECTIVE EARTHGROUNDED SOCKET. ANY INTERRUPTION OF THE PROTECTIVE EARTH GROUNDING WILL CAUSE A POTENTIAL SHOCK HAZARD THAT COULD RESULT IN SERIOUS PERSONAL INJURY.

ONLY FUSES OF THE REQUIRED RATED CURRENT AND OF THE SPECIFIED TYPE SHOULD BE USED. DO NOT USE REPAIRED FUSES OR

SHORTED FUSEHOLDERS. TO DO SO

CAN CAUSE A SHOCK OR FIRE HAZARD.

TURNED ON, IT MUST BE SET TO

THE INSTRUMENT MAY RESULT.

Basic Operation

(paragraphs 3-3 through 3-39)

Graphics Display

(paragraphs 3-40 through 3-76)

Measurement Basics

(paragraphs 3-77 through 3-89)

Extended Capabilities

(paragraphs 3-90 through 3-l 26)

* HP-IB Capabilities * PLOT Function * PRINT Function * External Display * Disc Copy * Head Cleaning

Figure 3-l. Contents of Section III.

3-l

SECTION III

Model 4145A

3-3. PANEL FEATURES

3-4.

The front and rear panels of the 4145A

are briefly described in Figures 3-2 and 3-3,

respectively. Detailed information is given

starting in paragraph 3-5.

-1

i/’

D LINE ON/OFF:

_,

Applies ac line power to the instrument when set to the ON (I) position. Removes ac line power when set to the OFF (I> position. SELF TEST is performed each time the instrument is turned on.

After SELF TEST is performed, the start-up

MENU is displayed.

3 CRT DISPLAY:

Displays all measurement setups, measurement results, softkey labels, special user

functions, operator messages, error codes and messages, and warnings. All displays can be dumped directly onto an HP-IB plotter, without a controller, by pressing the

PLOT key @ .

If an HP-IB controller, fluent in HP-GL (Hewlett-Packard Graphics Language), is connected, the CRT can be

used as an independent graphics display. Refer to paragraph 3-103 and 3-107 for details.

3 SOFTKEYS :

0

These eight keys are used for measuremen’ setup, parameter selection, and functior selection. The function of each softkey i! defined by the operating system software and changes depending on the displayed. Softkeys labels are displayed or the CRT @ in the form of a “softke:

prompt” (SKP). Each time the SKP changes

the functions of the corresponding softke!

changes. Pressing the EXTN (extended displays additional softkey functions. I description for each softkey function i: provided in the description of the page 01 which it appears.

@ PAGE CONTROL Keys:

These three keys control paging on the CR’

2 . Refer to paragraph 3-40 for z

0

description of the PAGE concept.

MENU : When pressed, returns the displa:

to the start-up menu. Can be usec anytime except during measure

ment or auto-calibration or othe

functioning.

-

Pagt

---.

Figure 3-2. Front Panel Features (Sheet 1 of 6).

3-2

h;cc -.-___

-- -- -_ --

Model 414.5A

SECTION III

NEXT: Advances the display to the next

page.

Each time this key is pressed, the instrument checks the presently displayed page for any illegal settings, and if it detects

any

errors, it displays the

corresponding error message and does not advance to the next page,

automatically changes the

Qr

settings.

PREV : Returns the display to the previous

page*

Each time this key is pressed, the instrument checks the presently displayed page for any illegal settings.

3 MEASUREMENT Keys :

These keys start and stop the measurement. After all measurement conditions have been

set and the GRAPHICS PLOT page, LIST

DISPLAY page, MATRIX DISPLAY page, or SCHMOO PLOT

Page

is

displayed, measurement is started by pressing SINGLE, REPEAT, or APPEND. Measurement can be

stopped by pressing STOP. Measurement is

a sequential operation consisting of voltage or current sweep, measure-ment, and storage of the measurement result.

SINGLE: When this key is pressed, results

of the previous measurement are

erased from memory, the new measurement is made, and the results are stored in memory.

REPEAT : When this key is pressed,

measurement is repeatedly made

until STOP is pressed. Results

of the previous measurement are updated during each new mea-

surement.

APPEND : Functions similarly to the

SINGLE key except that results of the previous measurement are not erased from memory of the

CRT. Results of a measurement made using this key are stored in

the remaining unused portion of

memory and are displayed over (overlay plot) the previous plot. Measurement can be made using

this key until

“Buffer full” is

displayed.

STOP : Immediately stops the measure-

ments.

@ AUTO SEQ Key:

These keys start and stop the ASP (Auto Sequence Program) listed on the SETUP AUTO SEQUENCE

page*

Refer to paragraph 3-61 for details on Auto Sequence Programs.

START/STOP : Starts the ASP from line 1.

If pressed during the ASP, the ASP stops immediately.

Once stopped, the ASP cannot be continued from the stop point.

CONT: If the ASP contains a

PAUSE statement, this key

continues the program from

the line immediately follow-

ing the PAUSE statement.

@ INTEG TIME Keys:

These keys are used to select the digital integration time. When MED or LONG integration is selected, the integration time is an integral number of the line frequency period, eliminating line frequency noise. SHORT is the initial control setting. The

integration time can be changed at any

time, even during measurement.

SHORT : Measurement data is stored

directly into memory without integration.

MED :

Integration time is set to one line

frequency period. Sixteen samples are

taken at each

measurement point.

LONG: Integration time is set to sixteen

line frequency periods. A total of

256 samples are taken at each measurement point.

Figure 3-2. Front Panel Features (Sheet 2 of 6).

3-3

SECTION III

Model 4145A

9 HP-IB Status Indicators and LOCAL Key :

These four LED lamps-SRQ, LISTEN, TALK, and REMOTE-indicate the status of the 4145A when interfaced with a controller via the HP-IB, or connected directly to a printer/plotter. pressed, releases the 4145A from remote (HP-IB) control and enables control from the front panel. The LOCAL key does not function when the instrument is set to local lockout by the controller or in the GL mode.

9 PLOT and PRINT Keys

The PLOT key is used to dump whatever is . displayed on the CRT directly onto an HP-IB plotter (e.g., HP9872C), controller. Plot area can be set from the

4145A’s front panel. Plotting starts when EXECUTE is pressed. Pressing PLOT a

second time stops the plot immediately.

Refer to paragraph 3-117 for

information on the PLOT function. The

PRINT key functions similarly to the PLOT key except that a printer is used instead of a plotter and only alphanumeric data is output. If the PRINT key is used to output the results of a graphic plot, for example, only the numeric value of

measurement point is printed. Refer to paragraph 3-l 19 for more information on the PRINT function.

The LOCA-L key, when

without a

more

each

@ BLUE Key and GREEN Key:

These keys are used to access additional key functions. Additional key functions are labeled in blue and green.

BLUE Key: This key is used when

entering comments, variables,

(key indicator lamp on), it

again. When the CHANNEL

GREEN Key : This key is used wher

and program names.

Once this key is pressed

remains on until pressed

DEFINITION page is displayed or when a SAVE/GET operation, COMMENT operation or PURGE operation is being performed, the BLUE key is automatically set to ON (key indicator lamp on).

entering physical constants and certain special bols. It is valid for one key-in operation only; that is, it must be pressed each time a green-labeled key

function is desired.

sym-

3-4

Figure 3-2. Front Panel Features (Sheet 3 of 6).

Model 4145A

SECTION III

3 ENTER Key:

This key is used to enter parameter values, alphanumeric characters, special characters, and unit indicators displayed on the

Keyboard Input Line (see Figure 3-5) into

the internal display buffer. When this key is

pressed, data displayed on the Keyboard Input Line is moved to the display field

indicated by the field pointer ( ,> and stored in the display buffer. Data stored in the display buffer by the ENTER key can be recalled (redisplayed on the Keyboard Input Line) by pressing the RECALL Key 19 Up

to 60 characters can be entered in o the buffer, but only 27 characters can be displayed at one time. To display the rest of the buffer contents, use the BACK key or

FORWARD key.

3 EXECUTE Key:

This key executes GET, SAVE, PRINT,

PLOT, PURGE, and REPACK commands,

and arithmetic expressions displayed on the

Keyboard Input Line.

Q

1 MARKER Control Dial :

@

This dial controls the marker ( @ or *) on the GRAPHICS PLOT page. Rotating the dial clockwise moves the marker from the

sweep start point to the sweep stop point.

5 AUTO CAL KEY:

0

This key enables continuous auto-calibration of the 4145A. The AUTO CAL function is set to ON (key indicator lamp on) when the

instrument is turned on. Refer to paragraph

3-37 for details.

@, 8, @ DATA ENTRY Keys :

These keys are used to enter numeric values, arithmetic operators, and engineering units. keys is displayed on the CRT’s Keyboard Input Line and entered into the display buffer by pressing the ENTER key 0 . An arithmetic expression entered with these keys is executed by pressing the EXECUTE key.

Data entered with these

Note : The PURGE and REPACK com-

mands are available only when the USER FILE CATALOG is displayed.

3 CURSOR Control Keys : -’

These keys control the positioning of the field pointer (b) and the long and short cursors. the Keyboard Input Line.)

Field Pointer Control :

Long/Short Cursor Control :

(They do not control the cursor on

Pressing the 0 , c> , 0 , or G key moves the field pointer (,) in the

indicated direction. The FAST key

cannot be used for field pointer control.

Pressing the 0 , 0 , 0 , or 0 key

moves the cursor in the indicated direction. Movement continues until the key is released. be pressed simultaneously to move the cursor diagonally. Pressing the FAST key in conjunction with one or two of the direction keys, causes the cursor to

move more rapidly.

Two direction-keys can

@ Engineering Unit Keys :

Four engineering units are available-m

(milli, 10-S ), u (micro, 1O’6 ), n (nano, 10mg ), and p (pica, numeric keys

0 Arithmetic Operator and Function Keys :

Nine arithmetic operators and functions are

available-+, -, (scientific notation)--for use in arithmetic calculations. Five additional operator and functions are available with the alphabetic (blue) keys : w (exponentiation), LOG,

LN (natural log), EXP (natural base), and ABS (absolute). The SPACE key is also included in this key group.

@ Numeric Keys :

These keys-0 through 9 and decimal point-are used for entering measurement parameter values and for making quick arithmetic calculations.

1 O-l2 )-for use with the

@.

*, /, 4-9 a, (,I, EEX

Figure 3-2. Front Panel Features (Sheet 4 of 6).

---- --

3-5

SECTION III

Model 4145A

EDIT Keys :

These keys are used to edit data displayed on the Keyboard Input Line.

BACK :

FORWARD: Moves the Keyboard Input

DELETE : Causes the character at the

Moves the Keyboard Input Line cursor (-) left one position. If this key is pressed while the cursor is at the left-most position, the displayed text will move to the right.

Line cursor (- ) right one position. If this key is pressed while the cursor is at

the right-most position, the displayed text will move to

the left.

position of the cursor to be deleted. The cursor remains

at the same position and all

text to the right of the

deleted character moves one

position to the left as each

character is deleted.

INSERT : Causes the character at the

position of the cursor and all text to the right of the cursor to move right one position, leaving a space at the position of the cursor and all0 wing insertion of additional characters. To exit from this mode, press INSERT a second time.

RECALL :

Causes previous entries or

executions to on the

Keyboard Input Line.

be

re-displayed

CLEAR : Clears all text from the

Keyboard Input Line and returns the cursor to the home (left-most) position.

3-6

Figure 3-2. Front Panel Features (Sheet 5 of 6).

Model 4145A

SECTION III

D USER FILE Keys :

These keys are used to store program or data files onto the disc or to recall them.

SAVE : Used to store the existing

measurement setup, mea-

surement result, or

auto-sequence program onto the flexible disc. Press SAVE, enter the file type (P for a measurement setup, D for a measurement result, S for an auto-sequence

program), comment (if necessary), and then press EXECUTE 0.

GET : Used to recall a measure-

ment setup, measurement result, or auto-sequence

program from the flexible disc. file type (P for a measurement setup,

measurement result, S for an auto-sequence program), and file name, and then press

EXECUTE 0.

file name, and

Press GET, enter the

D for a

@ MEASURING Lamp:

This lamp comes on when the 4145A is measuring. When measurement is completed or when the STOP key is pressed, this

lamp goes off immediately.

@J CRT Adjustment :

INTENSITY determines the brightness of traces displayed on the CRT. FOCUS adjusts well-defined traces.

3 FLEXIBLE DISC DRIVE:

0

Accommodates a 92K byte, single-sided,

single-density, 5-l/4 inch flexible disc, and

functions as the 4145A’s mass storage unit (MSU). The lamp, located in the upper left-hand corner of the drive unit door, comes on when the 4145A is reading data from the disc. To open the door, press

firmly on the center of the door until an audible click is heard, then release the door. Refer to

information on proper handling of the

flexible disc.

the writing beam for sharp,

paragraph 3-5 for

Figure 3-2. Front Panel Features (Sheet 6 of 6).

3-7

SECTION III

6

Model 4145A

D Voltage Monitor (Vm) Input Connectors :

Two female BNC connectors for input to Vml and Vm2. Used in applications in which

a user-faQricated test fixture is used. These

connectors cannot be connected to the

16058A Test Fixture. Maximum allowable

input voltage is +2OV de.

3 Voltage Source (Vs) Output Connectors :

Two female BNC connectors for Vsl and vs2. Used in applications in which a

user-fabricated test fixture is used. These

connectors cannot be connected to the

16058A Test Fixture. Maximum output

voltage is +2OV dc.

3 SMU Output Connectors:

Four triaxial connectors for SMUl through

4. Can be connected to the 16058A Test Fixture or to a user-fabricated test fixture. Each connector outputs or measures up to

+lOOV or *lOOmA.

@ COM (COMMON)-GROUND Terminals :

Common (+) and Ground (A) for floating and grounded measurements. The common terminal is

outer-conductor of the Vm @ , Vs @ , and

SMU @ connectors; the ground terminal is tied directly to the instrument chassis. For

grounded measurements, these terminals

must be interconnected using the shorting-

bar. For floating measurements, disconnect

the shorting-bar.

A POTENTIAL SHOCK HAZARD MAY EXIST WHEN COMMON IS NOT CONNECTED TO GROUND

~;ES;;G-BAR DISCO N-

REGARDLESS OF THE OUTPUT

VOLTAGE, TOUCH THE

COMMON OUTER CONDUCTOR OF THE SMU, Vs, OR Vm CONNECTORS DURING A FLOATING MEASUREMENT DISCONNECTED).

tied directly to the

WARNING

DO NOT,

TERMINAL OR

(SHORTING-BAR

3-8

Figure 3-3. Rear Panel Features (Sheet 1 of 2).

Model 4145A

SECTION III

@ FILTER Switch:

This switch determines the measurement integration time,

line-frequency noise. Set this switch to the

frequency of the ac power source.

@ System Cable Connector :

Twenty-four connection between

Fixture and the 4145A. Vsl, Vs2, Vml, Vm2, and the fixture-lid-open detector are connected to this connector.

16058A is not used, this connector should be terminated with shorting-termination if voltages exceeding

+42V are to be output.

WHEN THE SHORTINGTERMINATION IS CONNECTED TO THE SYSTEM CABLE CONNECTOR, THE

PROTECTIVE CIRCUIT IS

DISABLED. VOLTAGES AT THE SMU AND Vs OUTPUTS CAN

REACH +lOOV AND RESPECTIVELY. DO TOUCH THE POINT OR POINTS AT WHICH THE%.* SMU’S OR VOLTAGE SOURCES ARE CONNECTED.

to reduce the effects of

pin connector for inter-

the 16058A Test

When the

the furnished

WARNING

4145 A’S

-+2ov, NOT

@ LINE VOLTAGE SELECTOR Switches

These switches select the appropriate ac operating voltage. Selectable voltages are

lOOV/12OV+lO% and 22OVklO% / 24OV+5%

-10% (48 - 66Hz). Refer to paragraph 2-5.

@ LINE Input Receptacle :

AC power cable is connected to this

receptacle. Refer to paragraph 2-5.

10 HP-IB Control Switch :

0

This switch sets the 4145A’s HP-IB address

- 30), data output format (COMMA or

(0

CR/LF), and interface capability (EOI ON or OFF). Specific information on this switch is given in paragraph 3-97.

11 HP-IB Connector :

0

Twenty-four pin connector; connects the

4145A to the HP-IB for remote operations.

Also used to connect a printer/plotter.

@ External CRT Output Connectors :

Three BNC (f) connectors for connection to an external X-Y-Z display. Refer to paragraph 3-l 2 1.

‘7 LINE FUSE Holder :

3

The 4145A’s power-line fuse is installed in this holder.

lOOV/12OV operation :

2.5AT, 250V (HP P/N : 2110-0015)

2OOV/24OV operation :

1.25AT, 250V (HP P/N : 2110-0305)

Figure 3-3. Rear Panel Features (Sheet 2 of 2).

3-9

SECTION III

Model 4145A

3-5. FLEXIBLE DISC HANDLING

3-6. Five work-discs and one head-cleaning

disc are furnished with the 4145A. Each

work-disc contains the required operating system software, four general purpose measurement setups, and 33.5K bytes of user area.

Installation and removal procedures for the disc

are shown in Figure 3-4. Precautions on handling

and storing the flexible discs are given below.

1. When not in use, each disc should be placed in its own outer jacket. Exposed areas of the disc should be completely covered by

the jacket.

Store discs in an upright position. Do not

2. stack or pile discs.

3. Store discs in a clean, dry, fireproof cabinet. Do not expose to direct sunlight, extremes of temperature or humidity, or magnetic fields.

4. Do not touch the exposed surface of the disc.

5. Do not apply strong pressure to the protective jacket. When labelling a disc,

use a felt-tip pen. Do not use a pencil or

ball-point pen.

CAUTION

DO NOT INSERT ANYTHING OTHER

THAN FLEXIBLE DISCS INTO THE

DISC DRIVE.

Note

Use only the discs furnished with the 4145A.

3-7.

CRT DISPLAY

3-8. The 4145A is equipped with the HP Model

1345A Digital Display.

For complete infor-

mation on the 1345A, refer to the 1345A

Operation and Service Manual, included in this

binder.

3-9. Useable display area on the CRT is shown in Figure 3-5. Operator adjustments are given in Figure 3-6.

Do not bend the discs.

6.

(a) Push firmly and (b) Door opens.

(d) Push the door

-‘.

(c) Carefully

release. insert or

remove the disc.

until clicks.

Note:

Fully

insert the disc into the disc drive before closing the disc drive door.

3-10

Figure 3-4. Disc Installation and Removal.

Model 4145A

5

0

SECTION III

The CRT is sectioned into five areas, as shown in the figure. Description for each area is as follows :

1

Page Display Area :

0

The instrument’s various pages are displayed in

this area. When the PLOT key is pressed, only this area is output to the plotter.

2

Command Display Area :

0

The SAVE, GET, PLOT, PRINT, PURGE and REPACK commands are displayed in this area.

Keyboard Input Line :

3

0

All keyboard (front panel) entries are displayed

in this area. Up to 60 characters can be

entered but only 27 can be displayed. To edit the displayed characters, use the BACK, FORWARD, DELETE and INSERT keys. When the RECALL key is pressed, the previous entry is re-displayed.

4

System Message Line :

0

Displays instructions, error messages, and error codes. When the instrument is turned on, instrument status is displayed.

5

Softkey Prompt Display Area :

0

Displays Softkey Prompts (SKP).

@ , 0, and @ are erased by pressing

the CLEAR key.

Figure 3-5. Useable Display Area.

CRT intensity and focus adjustment. (Requires a

sm.all flat-tip screwdriver.)

(1) Turn on the 4145A. The MENU page will be

displayed on the CRT.

(2) Press the EXTN softkey and the DIAG softkey.

(3) Press the GDU TEST softkey. Display will .be

as shown in the figure.

(4) Adjust INTENSITY @ until all three lines

(each line has a different intensity) are visible. (0)

(5) Adjust FOCUS @ until the corners of the

displayed trace are sharp.

Note

(6) Press the MENU key.

Figure 3-6. Operator Adjustment.

_--

- _.

y-------x .

3-l 1

-- --- -7 - -

SECTION III

Model 4145A

3-10. SELF TEST

3-11. The 4145A is equipped with an automatic self-diagnostic function that is initiated each time the instrument is turned on to confirm normal operation of the instrument’s

functions. The SELF TEST can also be initiated

from the DIAGNOSTICS page or via the HP-IB.

When SELF TEST is performed at instrument turn-on, the five tests listed in Table 3-l are automatically performed. If the instrument is operating normally, the MENU page will be displayed when the SELF TEST is completed. If an error is detected, an error code will be displayed on the CRT. When SELF TEST is initiated from the DIAGNOSTICS page or via the

HP-IB, only two tests are performed (MPU test and SMU test). If the instrument fails the SELF TEST, contact the nearest Hewlett-Packard Service Office (see list at back of this manual).

basic

3-l ‘2. ERROR MESSAGES/ERROR CODES

3-13. Error messages and error codes are displayed on the System Message Line of the CRT whenever an illegal operation or

out-of-range measurement is made, or whenever

an internal circuit fails. Error messages and error codes related to operator errors (not instrument failure) are listed in Table 3-2 and 3-3, respectively. Error instrument failure are listed in Table 3-4. If the instrument displays one of the error codes listed in Table 3-4, contact the nearest HewlettPackard Sales/Service Office.

Note

One of the error codes listed in Table 3-4 may be displayed if the instrument

is turned on after experiencing an

extreme change of

temperature. In this case, allow the

instrument to fully warm up (ignore the displayed error code), and then turn it off and on one time.

codes

related to

ambient

Test Name

I

MPU test

GDU test

I

MSU test

I

HP-IB test

I

SMU test

I

3-12

Table 3-l. 4145A SELF TEST

Description

I I

I

Checks the basic functions of the MPU (Microprocessor Unit) by checking four ROMs (Read-Only Memory) and sixteen RAMS (Randam-Access Memory).

Checks the functions of the GDU (Graphics Display Unit).

Checks the MSU (Mass Storage Unit : Flexible Disc Drive and Disc).

Checks all HP-IB interface capabilities.

Checks the basic functions of the four SMUs.

1

I

Model 4145A SECTION III

Table 3-2. Error Messages (Sheet 1 of 2)

Error Message

No source

name

Duplicate name

Illegal function

Overflow

No name

Meaning

An SMU that has been assigned a source mode (COM, V, or I) has not been assigned a corresponding V or I source name.

Two or more channels have the same name.

VARl, VARl’, or VAR2 is specified more than once.

VARl and VARl’ are not in the same source mode.

Number of steps for VARl

exceeds 512.

An attempt was made to input a value that is outside specified limits.

No name is entered in the

NAME field on the MEAS/DISP

MODE SETUP page.

Corrective Action

If the source mode is COM or V, enter a source name in the V column; if the source mode is I, enter a source name in the I column.

Re-assign the channel names.

Specify VARl, VARl’, and VAR2 only once.

Set VARl and VARl’ to the same source mode.

Change the value of START/STOP or STEP.

Enter a value that is within specified

limits.

Select a name from those displayed in the softkey prompt area.

No monitor

channel

Illegal setup

Buffer full

No monitor channel name is entered in the NAME field on the MEAS/DISP MODE SETUP page, or the name entered in

the NAME field cannot be

used as a monitor channel name.

LOG Sweep : (Display)

START and STdP

(MIN and MAX)

values have

different

SiqS.

Current value is too high because source mode has been changed from V to I.

INTERVAL or NO. OF RDNGS

for a time domain measurement is set to 0.

Duplications on the OUTPUT

SEQUENCE SETUP page.

Measurement data exceeds the capacity of the data buffer.

Select a monitor channel name from

those displayed in the softkey prompt _

area.

Change one of the signs.

Change the current (I) value setting.

Enter correct value : Up to 10s for INTERVAL and from 1 to 512 for NO. OF RDNGS.

Rearrange the output sequence.

Data buffer capacity is 512 measurement

points for a single sweep, or up to 575

(depends on the number of monitor channels used, VAR2 steps and the number of times APPEND is used) in other cases.

3-13

SECTION III

Model 4145A

Table 3-2. Error Messages (Sheet 2 of 2)

Error Message Meaning

Syntax error An illegal name was entered in

a GET or SAVE command.

PLOT area is not specified, contains one or more alphabetic characters, or is missing coordinate delimiters

(comma or space).

Illegal file type.

Busy

No data

Printer/

Plotter is

not

connected

Auto calibration is being per-

formed.

PRINT Key was pressed with no

measurement data in the data

buffer.

No printer or plotter is connetted to the instrument, or the printer or plotter is not set to LISTEN.

Corrective Action

The first character of a file name must be alphabetic, and all succeeding characters must be alphanumeric.

Re-enter the PLOT area correctly.

Use P, D, or S for the file type.

Auto calibration is performed every 5 minutes.

Perform a measurement.

Connect the printer or plotter.

Not

compatible

Close the

fixture lid

output

disabled, during a measurement in which ment again. Do not open the fixture lid

close the fixture lid +42V. system cable is properly connected.

Emergency Output was shut down to pre-

Recovered from power mentary power loss. down

Step overflow NO OF STEPS for VARl

The discs used in the copy operation havedif f erent system labels, or one of the discs is not a 4145A useable disc.

The fixture lid is open at the start of a measurement in which

_ the output voltage may exceed

+42V or lid is open during the User Mode (See Fig. 39).

The fixture lid was opened

the output voltage may exceed

vent SMU damage. are correct.

Indicates that there was a mo- When a power loss occurs during measure-

exceeds 512. STEP value.

Copy cannot be performed.

Close the lid or change the setup. Make sure the system cable is properly connetted.

Close the fixture lid and make the measure-

during measurement. Make sure the

Make sure the setup and all connections

ment, output is shut down. SUREMENT key to continue the measurement.

Change START value, STOP value, or

Press MEA-

Disabled A disabled softkey was function

3-14

pressed. existing measurement setup.

The softkey cannot be used in the

Model 4145A

SECTION III

Table 3-3. Operational Error-Codes (Sheet 1 of 2)

Display

Error EOl

Error E02

Error E03

Error E04

Error E05

Error E06

Error E0’7

Error E08

Error E09

Error 101

Error 102

Error 103

Meaning

Arithmetic operator (-, +, /, *) or parenthesis is required.

EXECUTE was pressed with no executable text on the Keyboard Input Line.

Object buffer overflow.

Improper d (delta) operation.

User function is used in the expression. (User function cannot be used in

an arithmetic expression.)

No variable or constant following an arithmetic operator.

Arithmetic expression contains an undefined variable.

Too many signs or parentheses.

Constant value is too large.

Stack Register overflow.

Improper calculation was attempted. For example, the divisor is zero.

Insufficient d data.

Error MO2

Error MO3

Error MO4

Error MO5

Error MO6

Error MO7

Error MO8

Error Ml9

Error ZOl

Error 202

Error 203

Disc is not inserted or is not correctly inserted.

The disc is write protected.

Illegal file name or file type.

The file name specified in the SAVE command has already been reserved for the specified file type.

Number of total files exceeds 96.

Number of total records exceeds 131.

User area may be lost. Copy immediately onto another disc.

The disc was not initialized for the 4145A.

The program specified by the GET command in the auto-sequence program contains an error. Press CONT to perform the next step of the auto-sequence program.

The SINGLE command can be executed from the GRAPHICS, MATRIX,

LIST, or SCHMOO page only. Press CONT to perform the next step of

the auto-sequence program.

PLOT or PRINT was performed by the auto-sequence program but no printer/plotter is connected to the 4145A or the printer/plotter is not set

to LISTEN. Press CONT to perform the next step of the auto- sequence

program.

3-15

SECTION III

Model 4145A

Table 3-3. Operational Error-Codes (Sheet 2 of 2)

Display

Error 204

Data Errors

Meaning

The test fixture lid is open during an auto-sequence program in which the output voltage may exceed +42V. Press CONT to perform the

next step of the auto- sequence program.

Depending on the number of channels used in the measurement, up to six 2-digit numbers are displayed, in the format shown below, whenever the measurement cannot be performed correctly.

Error DXX XX XX XX XX XX

Here, XX is a 2-digit number which represents channel status. The

left-to-right order in which the 2-digit error codes appear corresponds

to the order in which the channels are assigned on the MEAS/DISP

MODE SETUP page. Also, the number of 2-digit error codes that appear is identical to the number of channels used in the

measurement. converted into a 4-digit binary number, as described below. The right digit is decimal and requires no conversion. Also, zero means no error.

xx

--

-’

8: INTERVAL in a time domain measurement is too short.

..,

The left digit of XX is hexadecimal and must be

1 : Stack register overflow 2: Calculation error 3: Insufficient data for d measurement 7: Undefined user-function

Complete measurement data cannot be stored before the

next measurement begins.

Convert hexadecimal number into binary.

LIIII

L

A/D converter saturated.

L

Oscillation

L

Channel correspondence is shown below :

GRAPHICS PLOT :

LIST DISPLAY :

MATRIX DISPLAY, SCHMOO PLOT :

Other channel has reached compliance limit.

This channel has reached compliance limit.

Error

Error DXX XX XX XX XX XX

Error DXX

DXX

X axis

1st 2nd 3rd 4th 5th 6th

xx

Yl axis

xx

Y2 axis

3-16

Model 4145A

Table 3-4. Hardware-Related Error-Codes

Display Meaning

Error PO1 - PO4 One of the four ROMs (Read Only Memory) is not functioning properly.

SECTION III

Error PO5-P20

I

Error P21 MPU’s (Microprocessor Unit) peripheral circuit is not functioning properly.

Error MO8-Ml8

I

Error A01

CHAN (! ! ! DOWN ! ! !)

CHAN (XX,XX,XX,XX)

If a momentary power loss occurs, the 4145A’s display may go blank. To recover, turn off the instrument, wait a few seconds, and then turn on the instrument.

The 4145A will function properly even though error M 13 or M 14 is displayed.

One of the sixteen RAMS (Ramdom Access Memory) is not functioning properly.

I

MSU (Mass Storage Unit : Flexible Disc and drive) is not functioning properly. Try another disc.

SMU controller is not functioning properly.

SMU itself is not functioning properly. (XX indicates the SMU number

and error code. Refer to Fig. 3-20.)

Note

3-17

SECTION III

Model 4145A

3-14. INITIAL CONTROL SETTINGS

3-15. To facilitate operation, the instrument is automatically set to the following initial control settings each time it is turned on :

Front Panel Controls :

MEASUREMENT keys .~~~~~~. OFF AUTO

SEQ key

. . . . . . . . . . . . . . . . . OFF

INTEG TIME keys •~~.~~~~~~~. SHORT

PLOT/PRINT keys •~~~~~~..~.~ OFF AUTO CAL BLUE

key

. . . . . . . . . . . . . . . . ON

. . . . . . . . . . . . . . . . . . . . . . . . . OFF

Internal Setup :

CRT Display .............e....... MENU

Page

Measurement Program l **=**** GENL

(see note) PLOT Area (for external plotter)

........................ previously

specified

values

Note

Each flexible disc contains four different application programs, of which GENL is one. Refer to paragraph 3-87 for details on the

furnished applications programs.

Three types of files can be stored in the user-area :

1.

Measurement program files-file type P : Specifying file type P in the SAVE command reserves 3 records on the disc and stores the

existing measurement setup (channel assignments,

parameter settings, graphic scaling, output sequence, etc.) at the reserved S-record location.

2. Measurement data files-file type D : Specifying file type D in the SAVE command reserves 12 records on the disc and stores the measurement setup and measurement results (GRAPHICS, LIST,

SCHMOO) at the

reserved 12-record

nwnux,

or

location.

3. Auto-sequence program files-file type S : Specifying file type S in the SAVE command reserves 1 record on the disc and stores the existing auto-sequence program

at the

reserved l-record location.

For more information on file types, number of

records used, etc., refer to Figure 3-30, 4145A

FILE CATALOG Page.

Four filing operations-SAVE, GET, PURGE, and REPACK-can be performed from the front d

panel. Each is described below :

All data stored on the disc is retained; that is, the disc is not erased when the instrument is

turned off.

3-l 6. USER-AREA FILING OPERATIONS

3-17. The 4145A uses a 5.25 inch, single-sided,

single-density flexible disc as the storage

medium for its MSU (mass storage unit). Each of the five work-discs furnished with the 4145A contains the necessary operating system software, four general purpose measurement programs, and enough user area for 131 records.

Up to 96 files can be stored in the user-area.

Note

A record is the minimum unit for

storage on the disc. A file consists of

1, 3, or 12 records, depending on the

file type.

SAVE :

Used to store the existing measurement setup (except INTEG TIME, AUTO CAL, and sof tkey auto-sequence program,

functions), the existing

output sequence setup, or the measurement results. SAVE cannot be write-protected.

used when the disc is

Before saving a measurement setup, a page check must be performed (refer to para. 3-44). To SAVE a file, press the SAVE key (SAVE will appear on the Keyboard Input Line of the CRT) and input the file type (P, D, or S) and file name. The file name can contain up to six characters, of which the first must be alphabetic and the last five must be alphanumeric.

J

GET :

Used to recall user-stored files from the disc. GET cannot be used to recall any of the furnished measurement programs. To GET a file from the user-area of the disc, press the GET key (GET will appear on the Keyboard Input Line of the CRT) and input * the file type (P, D, or S) and file name.

‘4

3-18

HP 4145A Service and user manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

l-l. INTRODUCTION

l-4. DESCRIPTION

it meets the specifications

1-21. OPTIONS

Z-l. INTRODUCTION

2-8. Line Voltage and Fuse Selection

2-6. POWER REQUIREMENTS

2-12. POWER CABLE

INSTALLATION INSTRUCTIONS

2-24. ENVIRONMENT

2-26. PACKAGING

3-l. INTRODUCTION

CRT DISPLAY

3-10. SELF TEST