HP 4155A, User'S Task Manual

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Introduction
HP 4155A/4156A is an electronic instrument for measuring and analyzing the
characteristics of semiconductor devices . This one instrument allows you to
perform both measurement and analysis of measurement results .
highly accurate measurements.
HP 4155A/4156A has four highly accurate source/monitor units (SMUs), two
voltage source units (V SUs), and two voltage measurement units (VMUs).
The HP 4156A is designed for K elvin connections and has high-resolution
SMUs (HRSMUs), so HP 4156A is especially suited for low resistance and low
current measurements . Y ou can measure voltage values with a resolution of
0.2 V by using the dierential measurement mode of VMUs .
reliability testing.
HP 4155A/4156A can perform stress testing. That is , can force a specied dc
voltage or current for the specied duration.
Also , you can force ac stress by using pulse generator units (PGUs), which are
installed in HP 41501A SMU/Pulse Generator Expander . The HP 41501A is
attached to HP 4155A or HP 4156A, and can be equipped with a ground unit
(GNDU), high power SMU (HPSMU), two medium power SMUs (MPSMUs), or
two PGUs .
data storing and printing.
HP 4155A/4156A can print and store , in addition to performing measurement
and analysis . Y ou can store measurement setup information, measurement
data, and instrument setting information on a 3.5-inch diskette inserted into
the disk drive of HP 4155A/4156A. And you can print the setting information
and measurement results on a plotter or printer that is connected to
HP 4155A/4156A .
remote control.
HP 4155A/4156A can be controlled by an external controller via HP-IB by
using remote control commands . These commands are based on Standard
Commands for Programmable Instruments (SCPI), so you can easily develop
measurement programs .
HP 4155A/4156A has internal HP Instrument B ASIC, so you can develop and
execute measurement programs by using the HP 4155A/4156A only , without
using an external controller .
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