Recommended Connecting Cables; Test Fixture And Device Under Test (Dut) Connections - Keithley 4200A-SCS Reference Manual

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Table of Contents

Section 2: Connections and configuration

Recommended connecting cables

To ensure accurate, reliable connections, use only quality, low-noise triaxial cables such as those

supplied with the SMU (4200-MTRX-X) and preamplifier (4200-TRX-X) for all source-measure signal

connections.

Refer to "Triaxial cables" in the 4200A-SCS User's Manual for a complete description of

recommended triaxial cables. Refer to

4210-CVU connections

For optimum measurement accuracy, noise immunity, and settling time keep cables as short as

The next table summarizes recommended Keithley Instruments test fixtures.

Test fixture

Asserting the interlock allows the SMU and preamplifier terminals to become hazardous,

exposing the user to possible electrical shock that could result in personal injury or death.

SMU and preamplifier terminals should be considered hazardous even if the outputs are

programmed to be low voltage. Precautions must be taken to prevent a shock hazard by

surrounding the test device and any unprotected leads (wiring) with double insulation for

250 V, Category O.

Test fixtures

There are two types of test fixtures for the 4200A-SCS:

Low-voltage fixtures (less than ±20 V).

High-voltage fixtures (greater than ±20 V), which require extra precautions to ensure there are no

dangerous shock hazards.

To avoid high voltage exposure that could result in personal injury or death, whenever the

interlock of the 4200A-SCS is asserted, the FORCE and GUARD terminals of the SMUs and

preamplifier should be considered to be at high voltage, even if they are programmed to a

non-hazardous voltage current.

Pulse measure and pulse generator units

(on page 4-5) for connection information.

Semiconductor test fixture

Component test fixture optimized for

device testing up to 200 V/1 A

Model 4200A-SCS Parameter Analyzer Reference Manual

DUT/fixture connections

DIP/triaxial cables

Mini jumpers

4200A-901-01 Rev. C / February 2017

(on page 5-1) and