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Agilent Technologies Agilent B2201A User Manual

Page 50

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2-14

Agilent B2200 User’s Guide, Edition 4

Installation
Output Connections

Table 2-3

Connection to the DUT Interface

CAUTION

Never connect the guard terminal to any output, including circuit common, chassis
ground, or the guard terminal of any other unit. Doing so may result in an
emergency condition.

For highly accurate current forcing and measurements while minimizing leakage,
surround all force and sense lines from SMU by a guard as far as possible, and make
cables stable by taping.

For reducing capacitance measurement error, tape the cables to any grounded
materials such as shielding box. If you use probe card, grounding the probe card also
reduces capacitance measurement error.

Kelvin connections

non-Kelvin connections

This connection is available only for the
Kelvin connectors.

This connection can cancel effects of cable
resistance by connect sense line and force line
as close as possible to DUT terminal.

Following connection is for the Kelvin
connectors. For the triaxial connectors,
ignore SENSE terminal, and make
connection only for FORCE terminal.
Measurement data will include residual
resistance from the connection cable.

to
DUT

Coaxial cable

Triaxial
connector

Insulator

Plate

Guard

Sense

Common

Guard

Force

Common

to
DUT

Coaxial cable

Triaxial
connector

Insulator

Plate

Guard

Sense

Common

Wire

Guard

Force

Common