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Keysight Technologies B2900 Series
Precision Source/Measure Unit
Configuration
Guide
Contents
1. B2900A Product Configuration
Product Line up of the B2900A Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Options of B2900A Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Furnished Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2. B2900A Accessories
Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Adapters & Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
. . . . . .
N1295A Device/component Test Fixture. . . . . . .
U2941A Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
16442B Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Other I/F and Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Program and Interface Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Programming Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
LXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
USB File System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Digital I/O Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Installing the Interlock Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
. . . . . . . . . . . . . . . . . 2-8
Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
3. Connection
Connecting to a DUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
. . . . . . . . . . . . . . . . . . . 3-2
“2-wire connections” or “4-wire connections”. .
Floating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
To use Test Leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Connection with Test Fixture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
To use N1295A Test Fixture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
To use U2941A Test Fixture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
To use 16442B Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Connection with Prober . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Connecting to Manual Prober. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
2-wire (Non-Kelvin) connection. . . . . . . . . . .
4-wire (Kelvin) connection for High Force and High Sense . . . .
4-wire (Kelvin) connection for Low Force and Low Sense . . . .
Kelvin to non-Kelvin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Agilent B2900A Configuration and Connection Guide, Edition 1 Contents - 1
. . . . .
. . . . . . . . . . . . . . . . . . 3-12
. . . . .
. . . . . . . . . 3-13
. . . . . . . . 3-13
Contents
To make connection to reduce leakage current . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Guarding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
To make connection to measure low resistance . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Kelvin Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
4. Ordering Examples
Agilent B2900A for Resistance measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Agilent B2900A for LED IV Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
. . . . . . . . . . . . . . . . . 4-4
Agilent B2900A for LIV Test of Laser Diode. . . . . .
Agilent B2900A for Diode/LED/OLED/Varistor Test . . . . . . . . . . . . . . . . . . . . . 4-5
. . . . .
Agilent B2900A for Characterization of
Agilent B2900A for DC Bias to Network Analyzer . . . . . .
FET & Bipolar Tr
ansistor. . . . . . . . . . . 4-6
. . . . . . . . . . . . . . . . . 4-8
Contents - 2 Agilent B2900A Configuration and Connection Guide, Edition 1
1 B2900A Product Configuration
B2900A Product Configuration
Product Line up of the B2900A Series
1.1 Product Line up of the B2900A Series
The Agilent B2900A Series of Precision Source/Measure Unit provides wider voltage and
current coverage, higher resolution, and graphical user interface for more quicker test,
debug and characterization on the bench top.
The B2900A series consists of four models, the B2901A, B2902A, B2911A and B2912A,
differentiated through their measurement specifications and by the number of SMU
channels (one or two) they support. This makes it easy to select the exact
price/performance point to meet your testing needs.
Table 1-1 B2900A Series Ordering Information
Item Description
B2901A Precision Source/Measure Unit, 1ch, 100 fA, 210 V, 3 A DC/10.5 A pulse
B2902A Precision Source/Measure Unit, 2ch, 100 fA, 210 V, 3 A DC/10.5 A pulse
B2911A Precision Source/Measure Unit, 1ch, 10 fA, 210 V, 3 A DC/10.5 A pulse
B2912A Precision Source/Measure Unit, 2ch, 10 fA, 210 V, 3 A DC/10.5 A pulse
Table 1-2 B2900A Series measurement capabilities
Effective set and measure value
Number
Model
B2901A 1 1 pA, 1 V 0.1 pA, 0.1V ± 3.03 A DC,
B2902A 2
B2911A 1 0.01 pA, 0.1 V
B2912A 2
of SMU
channels
Minimum resolution
Set Measure
Maximum
current
± 10.5 A
Pulse
Maximum
voltage
± 210 V
NOTE Max number of steps per second and Maximum sample rate are also different between
B2901A/B2902A and B2911A/B2912A. For details, refer to the data sheet of the B2900A series.
Figure 1-1 Agilent B2912A Precision Source/Measure Unit 10 fA, 2ch
1- 2 Agilent B2900A Configuration and Connection Guide, Edition 1
B2900A Product Configuration
Options of B2900A Series
1.2 Options of B2900A Series
This section describes Option items of the Agilent B2900A Series Precision
Source/Measure Unit.
Table 1-3 B2900A Options
Option Description OP Instruction
Specify the language of the paper manual if you need
ABA Paper Manual (User’s Guide), English • Additional printed paper manual. (English)
• The B2900A series product includes CD-ROM manuals.
ABJ Paper Manual (User’s Guide), Japanese • Additional printed paper manual. (Japanese)
• The B2900A series product includes CD-ROM manuals.
AB0 Paper Manual (User’s Guide), Traditional
Chinese
AB2 Paper Manual (User’s Guide), Simplified
Chinese
Select calibration options (optional)
AJ6 ANSI Z540 compliant calibration • ANSI Z540 compliant calibration
UK6 Commercial cal. certificate w/ test data • Test Data for ISO 9001/2 Commercial Calibration. This option
Select rack mount kit (optional)
1CM Rack mount kit
• Additional printed paper manual. (Traditional Chinese)
• The B2900A series product includes CD-ROM manuals.
• Additional printed paper manual. (Simplified Chinese)
• The B2900A series product includes CD-ROM manuals.
provides measurement test data for the standard commercial
calibration and test equipment trace information.
• Rack mount kit for the B2900A series.
• 2U height EIA and 1/2 rack width
Agilent B2900A Configuration and Connection Guide, Edition 1 1- 3
B2900A Product Configuration
Furnished Accessories
1.3 Furnished Accessories
The B2900A is furnished with the accessories listed in the following table.
Table 1-4 B2900A Options
Description Qty. Note
Product Reference CD 1 Stores electronic files of user manuals, drivers and software
Agilent I/O Libraries CD 1 Stores driver and installation software for the Agilent I/O library
Quick Reference 1 Printed reference for quick start (English)
Certificate of Calibration
(without test data)
USB cable 1 USB cable (1.8 m)
1 Certificate of Calibration without test data. If you need the test data, please specify
option UK6.
The Product Reference CD stores the following software and drivers.
• Agilent B2900A Quick I/V Measurement Software - This PC-based software makes
it easy to quickly set up and perform IV measurement and to display the measurement
data in a table pr graph without any programming. The software allows you to control
up to two members of the B2900A series over a GPIB or LAN connection, or one
member via a USB connection using furnished USB cable.
Operating System: Windows 7 (64bit/32bit), XP SP3 (32bit)
Other requirements: Microsoft .NET framework 4.0 or later and Agilent IO Libraries
16.0 or later.
• Agilent B2900A Graphical Web Interface - is a web browser based instrument
control panel. It enables you to set up and perform a measurement easily and quickly
from a web browser using the B2900’s built-in web server. This allows you to control
one B2900A series unit over a LAN connection.
• IVI-C or IVI-COM drivers - supports Agilent VEE, Microsoft Visual Studio (Visual
Basic, Visual C++, Visual C#), National Instrument LabWindows and LabVIEW. It is
compatible with Windows 7 (64bit/32bit), XP SP2 (32bit) IO Libraries 16.0 or later.
• LabVIEW driver (VI) - National Instruments LabVIEW 7.0 or later. LabVIEW
drivers are available at NI.COM.
1- 4 Agilent B2900A Configuration and Connection Guide, Edition 1
2 B2900A Accessories
B2900A Accessories
Cables
2.1 Cables
The B2900A series has banana type output ports with Force, Sense and Guard potential.
However, if you use conversion adapter, you can use BNC type cables or Triaxial cables so
that each SMU channels can connect to dedicated test environment for DUT such as test
fixture or wafer prober. The great variety of available cables can be categorized into mainly
five types:
• Banana Test Lead - To simplify the connections, you can use 2-wire connections or
4-wire connections by using banana test leads for connection of DUT. There are many
types of DUT interface.
• BNC cables - Co-axial type cables. Central signal line is surrounded by shield
potential. However, this is not suitable for ultra low current measurement below nA
level. For these low current measurements, we recommend to use the following
Triaxial cables.
• Triax ial cables - have three leads - a central conductor for the signal, an encapsulating
conductor that shields the center signal by employing the same voltage thus decreasing
a possible leakage current - and an outer conductor that serves as Common. To use this
cable, Banana to Triaxial adapter is required.
Table 2-1 Banana Test Leads for the Agilent B2900A series
Model/Option Description Additional Information
U8201A Combo Test Lead Kit
Couple of test leads, test probes, alligator clips, SMT
grabbers, fine-tips test probes, and banana plugs, CAT III
1000 V, 15 A maximum
Two kits are required for the 4-wire connections.
11059A Kelvin Probe Set
This kelvin probe set consists of two gold-plated flat
tweezers with special gripping surfaces. This design
assures a very precise contact to the component and very
precise measurements. The ground guard connector
removes ground-related errors.
• Maximum voltage : 42 V
• Termination : 5 signal banana plugs (4-wire
measurement plus ground)
• Cable Length : 0.8 m (31.5 inches)
2-2 Agilent B2900A Configuration and Connection Guide, Edition 1
B2900A Accessories
Cables
Table 2-2 BNC cables for the Agilent B2900A series
Model/Option Description Additional Information
16493B-001 Coaxial Cable, BNC(m) to BNC(m), 1.5 m
16493B-002 Coaxial Cable, BNC(m) to BNC(m), 3.0 m
The maximum voltage is 40 V, and Maximum current is 200 mA. The Agilent
16493B Coaxial Cable is designed for use with VSU (Voltage Source Unit), VMU
(Voltage Measurement Unit) or PGU (Pulse Generator Unit) on the Agilent 4155
series Semiconductor Parameter Analyzer.
16493U-001 High current coaxial cable, BNC(m) to BNC(m), 1.5 m
16493U-002 High current coaxial cable, BNC(m) to BNC(m), 3.0 m
The maximum current is 40 A. The 16493U High current coaxial cable is
designed for use with HCSMU (High Current SMU) Module on the Agilent
B1505A Power Device Analyzer/Curve Tracer.
WARNING Potentially hazardous voltages, up to ±250 V are present at the Force, Sense, and
Guard terminals.
To prevent electrical shock, do not expose these lines.
WARNING Potentially hazardous voltages of up to ±250 V may be present at the Low Force and
Low Sense terminals also. To prevent electrical shock, use the accessories comply with
the IEC 61010-2-031. The terminals and the extended conductors must be isolated by
using the insulation cap, sleeve, and such.
WARNING Before turning the B2900A on, connect the Intlk terminal to a switch that turns off
when the shielding box access door is opened.
Before you touch any connections to these terminals, turn the B2900A off, disconnect
the power cable, and discharge any capacitors.
CAUTION The 16493B Coaxial Cable is designed for use with VSU (Voltage Source Unit), VMU (Voltage
Measurement Unit) or PGU (Pulse Generator Unit) on the Agilent 4155/4156 series. (40 V/200 mA).
For the safety reason, Agilent do NOT recommend to use any BNC type cables which have common
potential on the connector.
CAUTION Never connect the Guard terminal on the B2900A to any output, including circuit common, chassis
ground, or any other guard terminal. Doing so will damage the SMU.
NOTE Do not put any conductor on the Low Force and Low Sense terminals of each SMU channels, outer
conductor of the coaxial connectors, Putting conductor of circuit common, chassis ground, or any
potential on causes the measurement error.
Agilent B2900A Configuration and Connection Guide, Edition 1 2- 3
B2900A Accessories
Cables
Table 2-3 Triaxial cables for the Agilent B2900A series
Model/Option Description Additional Information
16494A-001 Triaxial Cable, 1.5 m
16494A-002 Triaxial Cable, 3 m
16494A-003 Triaxial Cable, 80 cm
16494A-004 Triaxial Cable, 40 cm
16494A-005 Triaxial Cable, 4 m
CAUTION The maximum current rating of the 16494A Triaxial cable is 1A. Do not use the triaxial cable with
over 1A. For higher current beyond 1A, It is recommended that U8201A or 11059A with 4-wire
connections.
NOTE For the lower current measurement, use the 16494A Triaxial cable with low-noise environment. This
cable can maximize the guard effects and minimize the impression of the external noise.
2-4 Agilent B2900A Configuration and Connection Guide, Edition 1
2.2 Adapters & Connectors
High Sense, for 4-wire connection
High Force
Guard
Chassis ground
Low Force
Low Sense, for 4-wire connection
High Force
Chassis ground
V
A
+
-
+-
High Sense
4-wire connection
Low Sense
Low Force
High Force
Chassis ground
V
A
+
-
+-
Low Force
2-wire connection
For connecting a DUT, you can choose the connection type 2-wire connection or 4-wire
connections. If you want to simplify the connections, use the 2-wire connections by
connecting the Force terminals only. Then open the Sense terminals. The Force terminals
can be used to apply and measure dc voltage or current.
To make the 4-wire connections, remote sensing, well known as Kelvin connections, uses
both Force and Sense terminals. Connecting the Force and Sense lines together at the
terminal of the DUT minimizes the measurement error caused by the residual resistance of
the test leads or cables. This connection is effective for the low resistance measurement and
the high current measurement.
Before connecting to a DUT, specify suitable connection method on the B2900A series and
select required adapters.
Figure 2-1 B2900A Front Terminals
B2900A Accessories
Adapters & Connectors
Figure 2-2 Simplified SMU Circuit Diagram
Agilent B2900A Configuration and Connection Guide, Edition 1 2- 5
B2900A Accessories
Adapters & Connectors
NOTE The following table shows the adapter information provided by Agilent. If you need and adapter
which is not provided, contact a local parts vendor.
Table 2-4 Item number information for adapters used with B2900A series
Model/Option Description Additional Information
1253-7217 Plug-Banana Double (black)
1251-2277 Adapter-Banana BNC Jack Plug
N1294A-001 Banana to Triaxial adapter for 2 wire (non-kelvin)
connection
N1294A-002 Banana to Triaxial adapter for 4 wire (kelvin) connection
WARNING There are potentially hazardous voltages (210 V) present at the High Force, High
Sense, and Guard terminals of Agilent B2900A. To prevent electrical shock, the
following safety precautions must be observed during the use of the B2900A.
• Use a three-conductor AC power code to connect the cabinet (if used) and the
B2900A to an electrical ground (safety ground).
• If you do not use the Agilent 16442B Test fixture, you must install and connect
an interlock circuit that opens the interlock terminal when the shielding box
access door is opened.
• Confirm periodically that the interlock function works normally.
• Before touching the connections on the High Force, High Sense, and Guard
terminals, turn the B2900 off and discharge any capacitors. If you do not turn
the B2900 off, complete all of the following items, regardless of the B2900
settings on firm periodically that the interlock function works normally.
•Press the
On/Off key, and confirm that the key turns off.
• Confirm that the
On/Off key does not turn red.
• Open the shielding box access door (open the interlock terminal).
• Discharge any capacitors connected to a channel.
• Warn persons working around the B2900A about dangerous conditions.
2-6 Agilent B2900A Configuration and Connection Guide, Edition 1
B2900A Accessories
Adapters & Connectors
CAUTION Maximum voltage and current
The test fixture and adapters must be used under the following limitations to prevent damage to them.
Agilent N1294A-001 and 002 Banana to Triax adapter:
±250 V maximum, ±42 V maximum for connecting N1295A Small test fixture.
Agilent N1295A Small Test Fixture: ±42 V, 1.05 A maximum
Figure 2-3 Connection Diagram of N1294A-001 Banana to Triaxial adapter for 2 wire
(non-kelvin) connection
Figure 2-4 Connection Diagram of N1294A-002 Banana to Triaxial adapter for 4 wire (kelvin)
connection
Agilent B2900A Configuration and Connection Guide, Edition 1 2- 7
B2900A Accessories
Test Fixture
2.3 Test Fixture
The Agilent offers the following 3 types of test fixture. Each Test fixture have the
specification for maximum voltage and current. For details, refer to the each technical
document or user’s guide.
• N1295A Device/component Test Fixture - has four triaxial connectors for four
terminal devices as maximum.
• U2941A Parametric Test Fixture - has three BNC input channels and a common
ground. You can select different types of socket modules for device-under-test (DUTs)
of various pin conjunctions.
• 16442B Test Fixture - designed for testing packaged device and electronic
components. You can mount the suitable socket module on the 16442B, which allows
you to easily connect various devices to measurement units.
2.3.1 N1295A Device/component Test Fixture
The Agilent N1295A is a test fixture which has four triaxial connectors which allows to
make two 2-wire connections or the 4-wire connections. To connect to the B2900A,
16494A Triaxial cables and either N1294A-001 or 002 banana to triaxial adapter are
required.
Table 2-5 N1295A Device/component Test Fixture for the Agilent B2900A series
Model/Option Description Additional Information
N1295A Device/component Test Fixture
The N1295A test fixture furnishes with pin clip wire 4 ea.
and pin plug wire 2 ea.
CAUTION Maximum voltage and current
The test fixture and adapters must be used under the following limitations to prevent damage to them.
Agilent N1294A-001 and 002 Banana to Triax adapter:
±250 V maximum, ±42 V maximum for connecting N1295A Small test fixture.
Agilent N1295A Small Test Fixture: ±42 V, 1.05 A maximum
NOTE Shielding
The N1295A is quipped with the lid. To minimize the affect of ambient noise, close the lid when
performing the measurement.
2-8 Agilent B2900A Configuration and Connection Guide, Edition 1
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