Revision H, January 1999
Revision I, November 1999
Revision J, February 2000
Revision K, August 2000
Revision L, October 2002
Revision M, November 2002
Revision N, June 2005
ii
WARRANTY
Maxtek, Inc. warrants the product to be free of functional defects in material and
workmanship and that it will perform in accordance with its published
specification for a period of (twenty-four) 24 months.
The foregoing warranty is subject to the condition that the product be properly
operated in accordance with instructions provided by Maxtek, Inc. or has not been
subjected to improper installation or abuse, misuse, negligence, accident,
corrosion, or damage during shipment.
Purchaser's sole and exclusive remedy under the above warranty is limited to, at
Maxtek's option, repair or replacement of defective equipment or return to
purchaser of the original purchase price. Transportation charges must be prepaid
and upon examination by Maxtek the equipment must be found not to comply
with the above warranty. In the event that Maxtek elects to refund the purchase
price, the equipment shall be the property of Maxtek.
This warranty is in lieu of all other warranties, expressed or implied and
constitutes fulfillment of all of Maxtek's liabilities to the purchaser. Maxtek does
not warrant that the product can be used for any particular purpose other than that
covered by the applicable specifications. Maxtek assumes no liability in any
event, for consequential damages, for anticipated or lost profits, incidental
damage of loss of time or other losses incurred by the purchaser or third party in
connection with products covered by this warranty or otherwise.
DISCLOSURE
The disclosure of this information is to assist owners of Maxtek equipment to
properly operate and maintain their equipment, and does not constitute the release
of rights thereof. Reproduction of this information and equipment described
herein is prohibited without prior written consent from Maxtek, Inc.,
5980 Lakeshore Drive, Cypress, California, 90630-3371.
SAFETY
All standard safety procedures associated with the safe handling of
electrical equipment must be observed. Always disconnect power when
working inside the controller. Only properly trained personnel should
attempt to service the instrument.
iii
Table of Contents
1. GENERAL DESCRIPTION.............................................................................................1-1
TABLE 8-4 DISCRETE I/O SYSTEM INTERFACE CONNECTOR PIN ASSIGNMENTS....8-8
TABLE 8-5 RJ11 FRONT PANEL RS-232 CONNECTOR PIN ASSIGNMENTS................... 8-9
TABLE 8-6 FRONT PANEL MANUAL POWER CONNECTOR PIN ASSIGNMENTS........ 8-9
TABLE 10-1 MATERIAL DENSITY AND ACOUSTIC IMPEDANCE VALUE...................10-6
TABLE 13-1 SOURCE CONTROL CABLE COLOR CODE - (4 PIN MINI DIN)...............13-1
TABLE 13-2 DAC CABLE COLOR CODE - (7 PIN MINI DIN).........................................13-2
x
MDC-360 DEPOSITION CONTROLLER
1. GENERAL DESCRIPTION
1.1 PURPOSE
The MDC-360 provides both automatic control of single or multi-layer film
deposition in either a production or development environment and improved
predictability and repeatability of deposited film characteristics through
dependable digital control of the deposition process. It runs unattended in the
fully automatic mode and provides such features as run completion in the event of
crystal failure, and extensive internal checking. Performance limits and the abort
feature can be set by the user.
1.2 FEATURES
The MDC-360 incorporates numerous features which are economically justifiable
as a result of rapid advances in semiconductor technology and the advent of low
cost microprocessors.
1.2.1 EXTENSIVE PROGRAM STORAGE
The MDC-360 is capable of storing up to 99 processes, 999 layer definitions and
32 complete material definitions. Once a program is entered it will be maintained
in memory for a minimum of 5 years without external power.
1.2.2 DYNAMIC MEASUREMENT UPDATE RATE
Measurement is dynamically adjusted from 0.5 to 10 Hz for optimum resolution
and control.
1.2.3 SUPERIOR GRAPHICS DISPLAY
The MDC-360 features a 256x64 pixel LCD graphics display allowing real time
graphing of important process information such as rate, rate deviation, thickness
and power.
1.2.4 PROGRAM SECURITY
To assure the integrity of stored programs, the MDC-360 incorporates edit
passwords to guard against unauthorized program changes.
1.2.5 DESIGNED FOR UNATTENDED OPERATION
The MDC-360 has been designed for truly automatic operation and toward this
end incorporates extensive internal monitoring and overriding abort circuitry to
minimize the possibility of damage in the event of a failure or other problem in
the total deposition system. In addition there are attention, alert and alarm signals
with adjustable volume for trouble and routine operator call.
1.2.6 FAIL SAFE ABORTS
In the event of an MDC-360 failure, as evidenced by unsatisfactory internal
checks, the MDC-360 will abort the process and shut off all outputs. In addition
to the internal checks, the MDC-360 also provides user enabled aborts on
excessive rate control error or crystal failure.
GENERAL DESCRIPTION 1-1
MDC-360 DEPOSITION CONTROLLER
1.2.7 ABORT STATUS RETENTION
In the event that the MDC-360 does abort during the deposition process, pertinent
information is stored at the time of abort. The process can be resumed after the
problem is corrected.
1.2.8 RUN COMPLETION ON CRYSTAL FAILURE
The extensive monitoring and abort functions are designed to protect the system
and/or process from serious and hopefully infrequent malfunctions of the
deposition system. A condition which need not cause an abort is the condition of
crystal failure. The MDC-360 can be set to abort upon crystal failure, or run to
completion using a backup crystal or time/power method.
1.2.9 POWERFUL SYSTEM INTERFACE
Fully programmable discrete inputs and outputs permit the MDC-360 to be easily
interfaced into deposition systems controlling the most complex processes. Also,
source control outputs are fully isolated avoiding ground loop problems. The
MDC-360 also supports input from an optical monitor for optical termination of
film thickness.
1.2.10 POWER SUPPLY NOISE TOLERANCE
Integral RFI filter and large energy storage capacitors will tolerate high levels of
power supply noise and power interruptions of 700 ms or less without effect.
1.2.11 INTERNATIONAL STANDARD POWER CONNECTOR
The power connector is internationally approved and meets IEC (International
Electrotechnical Commission) standards. It allows selection of input power
voltages ranging from 100 to 240 volts at a frequency of 50 or 60 Hz and includes
an integral RFI filter.
1.2.12 FIELD UPGRADABLE
Plug-in interface boards and option boards allow the basic unit to be upgraded in
the field to the maximum system level.
GENERAL DESCRIPTION 1-2
MDC-360 DEPOSITION CONTROLLER
1.3 SPECIFICATIONS
1.3.1 MEASUREMENT
Frequency Resolution 0.03 Hz @6.0 MHz
Mass Resolution 0.375 ng/cm
Thickness Display Autoranging: 0.000 to 999.9 KÅ
Rate Display Autoranging: 0.0 to 999 Å/sec
Power Display 0.0 to 99.9%
Time To Go 0 to 9:59:59 H:MM:SS
Crystal Health % 0 to 99%
Layer Number 1 to 999
Graphics Display 256X64 LCD with CCFL
backlighting
1.3.3 COMMUNICATION
RS-232 serial port standard
RS-485 serial port optional
IEEE-488 bus interface optional
1.3.4 PROGRAM STORAGE CAPACITY
Process 99, user definable
Layer 999, user definable
Material 32, user definable
1.3.5 PROCESS PARAMETERS
Process Name 12 character string
Edit password 4 character string
Run/View password 4 character string
Layer# 1 to 999 Material name, Thickness
1.3.6 MATERIAL PARAMETERS
Material Name 10 character string
GENERAL DESCRIPTION 1-3
MDC-360 DEPOSITION CONTROLLER
Sensor # 1 to 4
Crystal # 1 to 8
Source # 1 to 4
Pocket # 1 to 8
Material Density 0.80 to 99.9 gm/cm
3
Acoustic Impedance 0.50 to 59.9 gm/cm2 sec
Tooling Factor 10.0 to 499.9%
Proportional gain 0.00 to 9999
Integral Time constant 0 to 99.9 sec
Derivative Time constant 0 to 99.9 sec
Rise to Soak Time 0 to 9:59:59 H:MM:SS
Soak Power 0 to 99%
Soak Time 0 to 9:59:59
Rise to Predeposit Time 0 to 9:59:59
Predeposit Power 0 to 99.9%
Predeposit Time 0 to 9:59:59
Rate Establish Time 0 to 60 sec
Rate Establish Error 0 to 99.9%
Deposition Rate (1 to 5) 00.0 to 999.9 Å/sec
Rate Ramp Start (1 to 4) 0.000 to 999.9 KÅ
Rate Ramp Stop (1 to 4) 0.000 to 999.9 KÅ
Time Setpoint 0 to 9:59:59
Ramp to Feed Time 0 to 9:59:59
Feed Power 0 to 99.9%
Feed Time 0 to 9:59:59
Ramp to Idle Time 0 to 9:59:59
Idle Power 0 to 99.9%
Maximum Power 0 to 99.9%
Power Alarm Delay 0 to 99 sec
Minimum Power 0 to 99.9%
Rate Deviation Attention 0 to 99.9%
Rate Deviation Alarm 0 to 99.9%
Rate Deviation Abort 0 to 99.9%
Sample Dwell % 0 to 100.0%
Sample Period 0 to 9:59:59
Crystal Fail Switch, Time Power, or Halt
Backup Sensor # 1 to 4
Backup Crystal # 1 to 8
Backup Tooling Factor 0 to 499.9%
Material Password 4 character string
The MDC-360 also has a built in material library that contains many common
material names along with their density and acoustic impedance values.
GENERAL DESCRIPTION 1-4
MDC-360 DEPOSITION CONTROLLER
1.3.7 INPUT/OUTPUT CAPABILITY
Sensor Inputs 2 Standard and 2 optional BNC inputs
Source Outputs 2 Standard and 2 optional fully
isolated, 2.5, 5, 10 volts @ 20 ma.
0.002% resolution
Discrete Inputs 8 Standard and 8 optional fully
programmable inputs.
The Passive I/O card (PN#179216)
has TTL level inputs activated by a
short across the input pins.
The Active I/O card (PN#179239) has
inputs activated by 12 to 120 volt
AC/DC across the input pins.
Discrete Outputs 8 standard and 8 optional fully
programmable, SPST relay, 120VA,
2A max.
Abort Output 1 standard and 1 optional SPST
Relay, 120VA, 2A max.
Remote Power Handset Front panel, RJH jack
RS-232 Communication Rear panel, 9 pin, Full duplex, DTE
Front panel, RJ11 jack, Full duplex
DAC Recorder Outputs Two 0 to 5 volts, 0.02% resolution
1.3.8 SENSOR PARAMETERS
Number of Crystals 1 to 8
Shutter Relay Type Normally open, normally closed,
dual, or none.
Position Control Manual, direct, BCD, or individual.
Position Drive Up, down, Fast, inline, single step, or
double step.
Feedback Type Individual, BCD, single home, in
position, or no feedback.
Rotator Delay 0 to 99 sec
1.3.9 SOURCE PARAMETERS
Number of Pockets 1 to 8
Shutter Relay Type Normally open, normally closed, or
none.
Shutter Delay 0.0 to 9.9 sec
Position Control Manual, direct, BCD, or individual.
Position Drive Up, down, Fast, inline, single step, or
double step.
Feedback Type Individual, BCD, single home, in
position, or no feedback.
GENERAL DESCRIPTION 1-5
MDC-360 DEPOSITION CONTROLLER
Rotator Delay 0 to 99 sec
Source Voltage Range 2.5, 5, 10 volts
1.3.10 RECORDER PARAMETERS
Recorder #1/#2 Output Rate, rate dev., power or thickness
Recorder #1/#2 Scale Full scale %, 2/3 digit
1.3.11 UTILITY SETUP PARAMETER
Crystal Frequency 2.5, 3, 5, 6, 9, 10 MHz
Simulate Mode On/Off
Interface Address 1 to 32
Attention Volume 0 to 10
Alert Volume 0 to 10
Alarm Volume 0 to 10
Data Points/Minute 30,60,120,300,600 PPM
Time 0 to 23:59
Date MM/DD/YY
1.3.12 OTHER
Input Power Requirements 100, 120, 200, 240 VAC; 50/60 Hz;
25 watts
Operating Temperature Range
0 to 50°C
Physical Weight 10 LB
Physical Size 19” rackmount case
3 1/2” high x 9 3/8” deep
1.4 ACCESSORIES
Part NumberDescription
179215 Dual Source/Sensor Board
179216 Passive I/O Board
179217 IEEE-488 Communication Board
179218 Internal Storage Data/Time Clock
179219 RS-232 to RS-485 conversion
179220 Remote Power Handset
179239 Active I/O Board
180200-4 DCM-200 software 3.5” diskette
123200-5 SH-102 Sensor Head , cables, and
carousel of 10 each 6MHz Gold SC-
101 sensor crystals
124201-4 SO-100 Oscillator with 6" and 10'
BNC Cables.
GENERAL DESCRIPTION 1-6
MDC-360 DEPOSITION CONTROLLER
130200-2 IF-111 Instrument Feedthrough, 1" O-
Ring with 1 electrical connector and
dual 3/16" water tubes.
130204-2 IF-276 Instrumentation Feedthrough,
2 3/4" Conflat® Flange seal with 1
electrical connector and dual 3/16"
water tubes.
gold sensor crystals.
103221 SC-102 Carousel of 10 each 6MHz
silver sensor crystals.
Refer to Maxtek Price List for more accessories and other products.
GENERAL DESCRIPTION 1-7
MDC-360 DEPOSITION CONTROLLER
2. FRONT PANEL DISPLAYS AND CONTROLS
The front panel is divided into two sections, the operating section and the
programming section. The left half of the panel is devoted to the operating
displays and controls. The right half is used for programming, viewing stored
processes, and displaying the status of the selected process.
2.1 OPERATING DISPLAYS
All of the operating displays are updated ten times per second unless the
controller is in the Abort mode. When in the Abort mode, the values of the
operating displays are held constant so the operator will know the values at the
time of the Abort. The controller will also flash the operating displays while in
Abort to alert the operator.
Figure 2-1 Operating Display
2.1.1 RATE
A three digit display with a floatin
g decimal point is used to display deposition
rate in angstroms per second at a resolution of 0.1 Å/sec from 0 to 99.9 Å/sec, and
a resolution of 1.0 Å/se
2.1.2 POWER
A three digit display with a fixed decimal point displays percent of m
c for rates from 100 to 999 Å/sec.
aximum
power with a resolution of 0.1% from 0 to 99.9%. This corresponds to the control
voltage range of 0 to 9.99 v
2.1.3 THICKNESS
Four digits with an autoranging
olts.
decimal point display measured thickness in KÅ
with a resolution of 1 Å from 0 to 9.999 KÅ, a resolution of 10 Å from 10.00 KÅ
to 99.99 KÅ and a resolution of 100 Å from 100.0 KÅ
2.1.4 LAYER NUMB
ER
to 999.9 KÅ.
Three digits display the layer number of the current process.
2.1.5 CRYSTAL
HEALTH %
A two digit display is used to show the health percentage of the sensor crystal in
use. A fresh crystal starts out with a health of 99%.
FRONT PANEL DISPLAYS AND CONTROLS
2-1
MDC-360 DEPOSITION CONTROLLER
p
2.1.6 TIME TO GO
Time To Go is displayed in hours, minutes and seconds. This display can be
configured to show the estimated state or layer time or the elapsed process, lay
er
or state times.
2.2 PARAMETER/STATUS DISPLAYS
A graphics display labeled Parameter/Status is used for process programming and
controller setup as w
operator can switch between programming screens and status screens by
ell as displaying run time status and data graphing. The
pressing
the Program and Status keys on the front panel. Upon power up, the
Parameter/Status display automatically reverts to the last viewed status screen.
Detail descriptions of the different programming and status screens can be found
in Section 4 and 5.
Displays the current
rocess name.
Figure 2-2 Parameter/Status Display
2.3 OPERATING CONTROLS
Normal operation of the MDC-360 is controlled by seven operating keys, Manu
Start, Abort, Reset, Zero, Shutter and Status. Except for the Zero and Status key
each of the other keys is equipped with an LED to indicate the controller’s statu
2.3.1 MANUAL KEY
This key is used to toggle the MDC-360 Manual mode on and off. A red light
behind this key indicates the controller is in manual power control mode. This
mode may be selected at any time providing that the controller is not in Abort
mode. The Manual mode indicates that the source control voltage output is bei
contro
voltage remains constant unless incremented up or down by means of the Rem
Power Handset. At entry into the Manual mode, the power is left at the
prior to entry and is thereafter modified only through the Remote Power Handset.
Exit from the manual mode is accomplished by means of the Manual or Reset
key.
Displays the current
material name.
Sample Cr Process Ready
10
R
a
t
e
0
1
Displays the
controller modes,
states or troubles.
Displays the ti
axis scale facto
lled through the Remote Power Handset. In the Manual mode the control
last value
me
r
al,
s,
s.
ng
ote
The MDC-360 can also be aborted through the Remote Power Handset. This
abort feature is active whether or not MDC-360 is in the manual mode.
FRONT PANEL DISPLAYS AND CONTROLS 2-2
MDC-360 DEPOSITION CONTROLLER
2.3.2 START KEY
The Start key starts a process, starts a layer, or resumes an aborted process. A
green light behind this key indicates the controller is in process. When this key is
pressed the first time a list of stored processes is displayed in the Parameter/Status
window. The up and down arrow keys can be used to move the cursor to the
desired process. Press the Start key again to start that process. Note that in many
cases messages will be displayed in the Parameter/Status window reminding the
operator to check system set up. Follow the prompt.
2.3.3 ABORT KEY
The Abort key drives the MDC-360 into the Abort mode. All source powers are
set to zero and discrete outputs are set to inactive state. A red light behind this
key indicates the controller is in the abort mode.
2.3.4 RESET KEY
The Reset key is used to clear the controller from Abort mode and put it into the
Ready mode. A yellow light behind this key indicates a Ready mode. The Reset
key is inactive during the In Process mode so that a premature exit from the In
Process mode requires an abort.
2.3.5 ZERO KEY
Pressing the Zero key causes the thickness display to go to zero. This key is
active at all times and if pressed during the deposit state will result in a film
thicker than that desired by an amount equal to the thickness displayed at the time
the display was zeroed.
2.3.6 SHUTTER KEY
This key is used to manually open and close all source shutters. The red light is
illuminated when the active source shutter relay is closed. This key is only active
when the controller is in the Process Ready mode.
2.3.7 STATUS KEY
Pressing the Status key will bring up one of the six run-time status screens.
Repeatedly pressing the key will cycle through the different status screens. Refer
to Section 5 for a detailed description of these status screens.
FRONT PANEL DISPLAYS AND CONTROLS
2-3
MDC-360 DEPOSITION CONTROLLER
Figure 2-3 Programming Section
2.3.8 ARROW KEYS
The arrow keys are used to navigate through the programming and setup menu
structure. These keys will auto-repeat if they are held down for more than half a
second.
Figure 2-4 Arrow Keys
2.3.9 PROGRAM KEY
Pressing the programming key will bring up the last viewed programming screen.
If a programming screen is already shown, nothing will happen. This key is also
used in conjunction with the Up and Down Arrow keys to adjust the contrast of
the Parameter/Status display.
FRONT PANEL DISPLAYS AND CONTROLS 2-4
MDC-360 DEPOSITION CONTROLLER
2.3.10 ALPHANUMERIC KEYBOARD
Figure 2-5 Alphanumeric Keyboard
The alphanumeric keyboard is used to
edit controller programs. Refer to
Section 4 for the use of each key.
‘Backspace’
‘Enter’
FRONT PANEL DISPLAYS AND CONTROLS
2-5
MDC-360 DEPOSITION CONTROLLER
3. BENCH CHECKOUT & INSPECTION
3.1 INSPECTION
Your MDC-360 was released to the carrier in good condition and properly
packed. It is essential to all concerned that the contents of the shipment be
carefully examined when unpacked to assure that no damage occurred in transit.
Check the material received against the packing list to be certain that all elements
are accounted for. Items included with your controller are:
1 MDC-360 Deposition Controller
1 Operation and Service Manual
1 Power cord
1 Source cable (4 pin mini DIN connector)
1 Discrete I/O connector kit (37P D shell)
In addition, you may have ordered one or more of the accessories listed in Section
1.4. If there is evidence of loss or damage:
a) Notify the carrier or the carrier agent to request inspection of the loss
or damage claimed.
b) Keep the shipping containers until it is determined whether or not they
are needed to return the equipment to Maxtek.
3.2 INITIAL POWER UP
Upon initial power up the unit will start with all LED’s lighted. The
Parameter/Status display will show the controller Sign-on screen with its
configuration information. The unit will stay in this state until a key is pressed.
When any key on the front panel is pressed, the operating display and the
Parameter/Status display will return to the last viewed screen prior to loss of
power.
3.3 SAMPLE PROGRAM
The sample program listed below is included in the MDC-360 memory at the time
of shipment. It can be used to check out the controller by running it in Simulate
mode. Follow instructions in Section 4 to navigate through the menu structure.
Check the controller parameter values against the sample program for discrepancy
and change if necessary. Note also, if the source or sensor configuration has been
changed during familiarization with the controller programming, appropriate
source and sensor parameter values also need to be retained for the sample
program to run correctly.
Once the sample program has been checked, use the programming Main Menu,
Edit System Setup, Edit Utility Setup, to select Simulate mode ON, then use Start
to select and run the sample program in Simulate mode.
BENCH CHECKOUT & INSPECTION
3-1
MDC-360 DEPOSITION CONTROLLER
3.3.1 MATERIAL #1 PARAMETERS
Material Name Cr
Sensor # 1
Crystal # 1
Source # 1
Pocket # 1
Material Density 07.20 gm/cm
3
Acoustic Impedance 28.95 gm/cm2 sec
Tooling Factor 70 %
Proportional gain 2400
Integral Time constant 99.9
Derivative Time constant 0.00
Rise to Soak Time 0:00:10 H:MM:SS
Soak Power 5 %
Soak Time 0:00:10
Rise to Predeposit Time 0:00:10
Predeposit Power 9.5 %
Predeposit Time 0:00:05
Rate Establish Time 0 sec
Rate Establish Error 0 %
Deposition Rate #1 10.0 Å/sec
Rate Ramp Start (1 to 4) 999.9 KÅ
Rate Ramp Stop (1 to 4) 999.9 KÅ
Time Setpoint 0
Ramp to Feed Time 0:00:05
Feed Power 7 %
Feed Time 0:00:10
Ramp to Idle Time 0
Idle Power 0
Maximum Power 20 %
Power Alarm Delay 5 sec
Minimum Power 0 %
Rate Deviation Attention 0 %
Rate Deviation Alarm 0 %
Rate Deviation Abort 0 %
Sample Dwell % 100.0 %
Sample Period 0
Crystal Fail Time Power
Backup Sensor # 1
Backup Tooling Factor 100
Backup Crystal # 1
Material Password 0000
3-2 BENCH CHECKOUT & INSPECTION
MDC-360 DEPOSITION CONTROLLER
3.3.2 MATERIAL #2 PARAMETERS
Material Name Au
Sensor # 2
Crystal # 1
Source # 1
Pocket # 2
Material Density 19.30 gm/cm
3
Acoustic Impedance 23.18 gm/cm2 sec
Tooling Factor 70 %
Proportional gain 5000
Integral Time constant 99.9
Derivative Time constant 0.00
Rise to Soak Time 0:00:05 H:MM:SS
Soak Power 25 %
Soak Time 0:00:05
Rise to Predeposit Time 0:00:05
Predeposit Power 37.5 %
Predeposit Time 0:00:10
Rate Establish Time 0 sec
Rate Establish Error 0 %
Deposition Rate #1 20.0 Å/sec
Rate Ramp Start (1 to 4) 999.9 KÅ
Rate Ramp Stop (1 to 4) 999.9 KÅ
Time Setpoint 0
Ramp to Feed Time 0:00:05
Feed Power 10 %
Feed Time 0:00:10
Ramp to Idle Time 0
Idle Power 0
Maximum Power 50 %
Power Alarm Delay 5 sec
Minimum Power 0 %
Rate Deviation Attention 0 %
Rate Deviation Alert 0 %
Rate Deviation Alarm 0 %
Sample Dwell % 100.0 %
Sample Period 0
Crystal Fail Time Power
Backup Sensor # 1
Backup Tooling Factor 100
Backup Crystal # 1
Material Password 0000
BENCH CHECKOUT & INSPECTION
3-3
MDC-360 DEPOSITION CONTROLLER
3.3.3 PROCESS PARAMETERS
Process Name Layer No. Thickness Material
Sample 1 0.400 KÅ Cr
2 1.050 KÅ Au
3.4 SIMULATE OPERATION
Testing the MDC-360 is best accomplished by checking its operation in the
Simulate mode. This mode can be selected by using the programming Main
Menu, Edit System Setup, Edit Utility Setup, to select Simulate mode ON, then
use Start to select and run a process in Simulate mode.
The Simulate mode is identical to the Normal mode except that the sensor input is
simulated. For this reason, entry to the Simulate mode will extinguish the Crystal
Failure message if it is flashing. No other difference between the Simulate mode
and the Normal mode occurs until entry to the Deposit State.
3.5 MANUAL OPERATION
Manual Mode is selected by depressing the Manual key. The LED behind the key
will light up indicating the controller is in Manual mode.
The Manual Mode is identical to the normal mode in all respects except that
source power is controlled only through the Remote Power Handset.
The Remote Power Handset has three push buttons, see Figure 3-1. Without any
of the buttons depressed, the output power is maintained at its last value.
Depressing the “PWR UP” button will increase the power, depressing the “PWR
DN” button will decrease the power and depressing the “ABORT” button will put
the controller into the Abort mode.
The Abort Mode is active whether or not the MDC-360 is in Manual Mode and
therefore can be used as a remote “panic button”.
The minimum increment by which the power is increased or decreased is 0.1%.
The Remote Power Handset can also be used to initiate a manual sensor and
crystal change by depressing both the power increase and decrease buttons
simultaneously. Each time a sensor/crystal switch is initiated, the controller will
toggle between the primary and the backup sensor/crystal combination as defined
by the active material’s parameters. The sensor/crystal switching function is only
operational when the controller is not in the Manual Mode.
3.6 INSTALLING OPTION BOARDS
Option boards are most easily installed while the MDC-360 is on the bench.
Figure 8-9 shows the location of the various option boards. Also, they are clearly
marked on the rear panel.
All Dual Source-Sensor boards are identical, as are all Discrete I/O boards. The
input-output configuration of these boards is defined by the position into which
3-4 BENCH CHECKOUT & INSPECTION
MDC-360 DEPOSITION CONTROLLER
they are installed. One exception for the Discrete I/O boards is that the jumper J2
on the board installed in the Discrete I/O-2 position has to be connected. This is
required so the controller will acknowledge the second Discrete I/O board. A
Source-Sensor board plugged into the second position will provide sensor inputs
numbers 3 & 4, and source outputs numbers 3 & 4. The IEEE-488 board has a
single slot.
3.6.1 SOURCE-SENSOR BOARD
1. Remove the chassis top cover.
2. Remove the three plastic hole-plugs from the rear panel.
3. Carefully slide the two BNC connectors on the Source-Sensor board into
the two top holes on the rear panel. Then with even pressure, push the
card edge connector down into the Main board J12.
4. Fasten the two BNC connectors using the nuts and washers supplied with
the kit. Make sure the board is properly aligned.
5. Tighten the board down with the tie wrap.
6. Replace the chassis top cover and apply power to the controller.
7. The Sign On screen should acknowledge Source-Sensor 3,4 installed.
3.6.2 DISCRETE I/O BOARD
1. Remove the chassis top cover.
2. Locate Discrete I/O-2 slot and remove the slot cover.
3. Carefully slide the D37 connector of the DIO board into the slot and fasten
it using the hex fasteners and washers supplied with the kit.
4. Fasten the other end of the board to the standoffs using the two # 4-40
screws provided.
5. Plug the 26-pin ribbon connector into the DIO edge connector J1.
6. Replace the chassis top cover and apply power to the controller.
7. The Sign On screen should acknowledge Discrete I/O-2 installed.
3.6.3 IEEE-488 OPTION BOARD
1. Remove the chassis top cover.
2. Locate IEEE-488 option slot and remove the slot cover.
3. Carefully slide the connector of the IEEE-488 board into the slot and fasten
it using the fasteners and washers supplied with the kit.
4. Plug the 20-pin ribbon connector into J7 connector on the Main board.
5. Replace the chassis top cover and apply power to the controller.
6. The Sign On screen should acknowledge IEEE-488 option installed.
3.7 DIGITAL TO ANALOG CONVERTER (DAC) CHECKOUT
The built-in DAC function on the Main board contains two converters, allowing
simultaneous recording of any two of the following four parameters: Rate, Rate
deviation, Power and Thickness. The full scale output of each converter is 5
volts, is single ended and is referenced to ground. Parameter selection for each of
the channels is accomplished independently by making the appropriate choices in
the DAC setup menu.
BENCH CHECKOUT & INSPECTION
3-5
MDC-360 DEPOSITION CONTROLLER
In addition to the individual channel output pins there are two control pins which
are common to both channels and are intended to simplify the process of setting
up analog recorders. Connecting the Zero control line to ground will drive both
channel outputs to zero, allowing the recorder zero reference to be easily set.
Releasing the Zero line and connecting the Full Scale line to ground will drive
both channel outputs to full scale for establishing the recorder full scale
calibration.
Each channel can be set independently to convert either the two or the three least
significant digits of the chosen parameter to a proportional analog signal,
corresponding to the DAC setup option chosen. With the three digit setting, a
thickness of 0.500 KÅ would result in an analog output of 2.50 volts, or a scale
factor of 5 mV/Å. If more resolution is desired, either channel can be configured
to convert only the last two digits of the parameter, thus the analog output would
achieve full scale at 99Å. The output scale factor in this configuration is 50
mV/Å.
The above scale factors are based on the assumption that the thickness display is
in the 0 - 9.999 KÅ range. Because the thickness and rate displays are autoranging, the analog output of these variables will also autorange so that in the
above example, if the thickness is in the range of 10 KÅ to 99.9 KÅ, the analog
scale factor would be 50 millivolts per 10 Å, also ten times larger.
The Rate deviation parameter must be handled differently than the other
parameters because it can be negative. Maximum positive error is converted to 5
volts, maximum negative error is converted to 0 volts and zero error is converted
to a mid scale, 2.5 volt, output. Maximum corresponds to 99 or 999, plus 1.
The DAC can be checked by putting the MDC-360 into the Simulate mode and
checking for correspondence between the analog output and the selected front
panel displays.
3-6 BENCH CHECKOUT & INSPECTION
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