Service Manuals, User Guides, Schematic Diagrams or docs for : Agilent English _ 2013-01-07 _ PDF 1.79 MB 5990-6587EN c20140828 [7]
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Keysight Technologies
FET Characterization Using the
B2900A Series of SMUs
Technical Overview
Introduction
Keysight B2901/02/11/12A Precision Source/Measure Unit
Keysight B2901A Precision SMU, 1ch, 100 fA resolution, 210 V, 3A DC/10.5 A pulse
Keysight B2902A Precision SMU, 2ch, 100 fA resolution, 210 V, 3A DC/10.5 A pulse
Keysight B2911A Precision SMU, 1ch, 10 fA resolution, 210 V, 3A DC/10.5 A pulse
Keysight B2912A Precision SMU, 2ch, 10 fA resolution, 210 V, 3A DC/10.5 A pulse
The Keysight Technologies, Inc. B2901/02/11/12A Precision Source/Measure Unit is compact and
cost-effective bench-top Source/Measure Unit (SMU) with the capability to output and measure both
voltage and current. They cover currents from 10 fA to 3 A (DC)/10.5 A (pulse) and voltages from 100
nV to 210 V, which enables you to make a wide range of current versus voltage (IV) measurements
more accurately and quickly than ever before. In addition, the B2900A Series of SMUs comes with an
intuitive graphical user interface (GUI) and free PC-based application software that make it easy for
you to begin making productive measurements immediately. These features make the B2900A Series
of SMUs the best solution for accurate characterization of a wide variety of devices such as field effect
transistors (FETs).
03 | Keysight | FET Characterization Using the B2900A Series of SMUs - Technical Overview
What is the B2900A Series of SMUs?
An SMU combines the capabilities of a current source, a voltage source, a current
meter and a voltage meter along with the capability to switch easily between these
various functions into a single instrument. This gives it the ability to evaluate the IV
characteristics of devices across all four measurement quadrants without the need for
any additional equipment.
Besides being able to output and measure voltage or current very accurately, SMUs also
possess a compliance feature that allows a limit to be placed on the voltage or current
output to prevent device damage. The members of the B2900A Series of SMUs are single
or dual channel SMU units that offer a wide range of IV measurement capability for a
variety of two-terminal and three-terminal devices. They cover currents from 10 fA to 3 A
(DC)/10.5 A (pulse) and voltages from 100 nV to 210 V. In addition to their DC operation
mode, the B2900A Series of SMUs also has the ability to perform pulsed measurements
in order to prevent device self-heating from distorting the measurement results.
In general, FET evaluation requires applying different voltages and currents with the
constant or the sweep condition to the gate and the drain terminal respectively in order
to acquire the several parameters and characteristics.
The B2902A and B2912A have two SMU channels, with each channel possessing
accurate IV measurement capabilities as well as the ability to supply either constant
or swept voltage/current. This makes the B2902A and B2912A excellent choices for
accurate IV FET characterization. As shown in Figure 1, you can easily measure three
terminal devices with the B2902A and B2912A.
Figure 1. Using the B2902/12A to characterize a field effect transistor
04 | Keysight | FET Characterization Using the B2900A Series of SMUs - Technical Overview
Quick and easy IV characterization 1) Set the measurement condition and the
compliance for Ch 1
During routine device evaluation it is often desirable to make a
quick measurement from the instrument's front panel without
having to go through the time and trouble of writing a test
program. To meet this need, the B2900A Series of SMUs has a
resident GUI that makes it easy to perform a variety of tests and
save measurement data without having to write any code.
The wide QVGA LCD display of the B2900A Series of SMUs
supports an easy-to-use GUI that provides easy instrument a) Single View for Ch1
control from the front panel. The GUI of the B2900A Series of
2) Set the measurement condition and the
SMUs has the following multiple viewing modes: Single View,
compliance for Ch 2
Dual View, Graph View and Roll View (for viewing time domain
measurements). Single View mode allows you to easily set up not
only constant voltage and current measurements but also swept
voltage and current measurements for a single SMU channel.
Dual View can perform similar functions for both channels
simultaneously (for B2902A and B2912A). After measurement
completion you can use the front panel GUI to graphically view
measurement results such as IV curves using Graph View, and
display a list of the measurement data using the Measure Result b) Single View for Ch2
dialog window (please see Figure 2).
The B2900A Series of SMUs has a USB interface on the front panel
so that a USB flash memory device can be used with the B2900A
Series of SMUs to save and load measurement setups as well as
to save measurement results. In addition, Graph View supports
a Screen Dump function that enables you to save screen images
(such as IV curves) to any attached USB flash memory device as
JPEG files, making it easy to include graphical results in reports 3) Execute and
and presentations (please see Figure 3).
c) Graph View
see the result
Figure 2. The GUI of the B2900A Series of SMUs makes it easy to take a quick
measurement and display the results
Measurement
Data
Graph Dump to JPEG
Figure 3. Measurement results and measurement setups can be saved to any
attached USB flash memory device
05 | Keysight | FET Characterization Using the B2900A Series of SMUs - Technical Overview
Ready-to-use PC software 1) Set the measurement condition for both channels
2) Perform the measurements
In addition to its powerful and easy-to-use GUI, the B2900A
3) View the measurement results (Table)
Series of SMUs comes with free PC application software to
3') View the measurement results (Graph)
facilitate program development if you prefer PC-based instrument
control. The Keysight B2900A Graphical Web Interface and the
Keysight B2900A Quick I/V Measurement Software are both
available for the B2900A Series of SMUs.
The Keysight B2900A Graphical Web Interface provides
functionality to allow access to the B2900A Series of SMUs over
a LAN connection. The B2900A Series of SMUs is fully compliant
with the LXI class C specification and it contains a web server
that provides a webpage with an interface to support the basic
measurement functions of the B2900A Series of SMUs. You can
quickly and easily make measurements using a standard web
browser by just connecting the B2900A Series of SMUs to a PC
using a LAN cable.
The Keysight B2900A Quick I/V Measurement Software has more
powerful measurement capabilities to control the B2900A Series
of SMUs over GPIB, USB or LAN connections (please see Figure 5).
Figure 4. It is easy to make a quick measurement on a PC using the Keysight
B2900A Quick I/V Measurement Software
06 | Keysight | FET Characterization Using the B2900A Series of SMUs - Technical Overview
You can download this PC-based software from Keysight's web site for free. The Keysight
B2900A Quick I/V Measurement Software supports a variety of functions such as a
sweep measurement, a sampling measurement, graphical display functions and the
ability to save test results into CSV files. The Keysight B2900A Quick I/V Measurement
Software also allows you to control up to four SMU channels from the B2900A Series of
SMUs so that devices requiring more than two SMU channels for characterization can be
measured. In addition, the Keysight B2900A Quick I/V Measurement Software has the
capability to make not only primary sweep measurements but also measurements where
a second terminal is swept, making it easy to generate
a variety of IV curves.
Summary
The Keysight B2901/02/11/12A Precision Source/Measure Unit is the best solution for IV
characterization of FETs and a variety of other devices. Its wide current and voltage
measurement ranges (from 10 fA/100 nV to 10.5 A/210 V) provide superior measurement
performance and allow you to characterize devices more accurately and easily than
ever before.
The easy-to-use GUI of the B2900A Series of SMUs has a variety of capabilities and
features that make it easy to take measurements quickly and to save both the measurement
setup conditions and data to USB-based flash memory devices.
In addition to being able to control the B2900A Series of SMUs remotely over GPIB,
USB and LAN interfaces, Keysight supplies PC-based Keysight B2900A Graphical Web
Interface and Keysight B2900A Quick I/V Measurement Software for free to simplify
controlling the B2900A Series of SMUs from your PC.
For more detailed information on the various models of the B2900A Series of SMUs, please
refer to the data sheet of the B2900A Series of SMUs (5990-7009EN).
The B2900A Series of SMUs enables you to quickly debug and accurately characterize a
wide variety of devices using only a single bench-top SMU.
07 | Keysight | FET Characterization Using the B2900A Series of SMUs - Technical Overview
myKeysight For more information on Keysight
Technologies' products, applications or
www.keysight.com/find/mykeysight
services, please contact your local Keysight
A personalized view into the information most relevant to you.
office. The complete list is available at:
www.axiestandard.org www.keysight.com/find/contactus
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