HP 4155A, User'S Task Manual

Page: 96 / 279

Connection to Device Under T est (DUT)
This section describes how to connect your DUT s to the HP 4155A/4156A.
Only the basic operations for connecting are described.
If the HP 4155A/4156A is not congured with a test xture or your wafer
prober yet, see \Setting up HP 4155A/4156A " in Chapter 2, T est Fixture
User's Guide, and your wafer prober manuals .
This section covers the HP 16442A test xture only . F or operating your wafer
prober , see your wafer prober manuals .
Note that you must set the HP 4155A/4156A to the idle state when
connecting or disconnecting your DUT s . If not, the DUT s may be damaged. T o
set to idle state , press 4 Stop 5 key and make sure Standby indicator is o.
The HP 4156A is designed for Kelvin connections. See \T o Make
Connections to Measure Low Resistance (F or HP 4156A Only)" for K elvin
connection theory .
In this Section.
This section has the following task descriptions:
T o mount a DUT on test xture
T o make connections to reduce leakage current
T o make connections to measure low resistance (for HP 4156A only)
3-3