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34 Quick Results Guide

Limit testing

There is one hardware test (Limit 1; compliance) and 10 software tests (Limits 2, 3, 5-12;

high/low limits) available for limit testing. (Limit 4 is reserved for the contact check option.)

For basic, pass/fail, non-binning limit testing, you should use only one software test at a time.

NOTE Limit testing using a component handler to perform binning operations is summa-

rized in the “More testing techniques” section of this guide. For complete details on

all aspects of limit testing, see the 2400 Series SourceMeter User’s Manual, Section

12.

Limit 1 (compliance)

This hardware (H/W) test uses the programmed compliance as the test limit. At or above the

test limit, the source is in compliance. Below the limit, the source is not in compliance.

The test can be set to fail if the source is in compliance or fail if it is out of compliance. If

Limit 1 fails, the FAIL message is displayed and the testing process for that DUT is terminated.

A pass condition allows the testing process to the next enabled software test.

For example, assume the SourceMeter is set to output 1mA with 1V compliance. If the DUT

is above 1kΩ, the source will be in compliance. If the DUT is below 1kΩ, the source will be out

of compliance.

Use the following menu sequence to conﬁgure Limit 1:

Press CONFIG > press LIMIT > select H/W LIMITS

After selecting H/W LIMITS, these menu items will be displayed:

CONTROL - Use to ENABLE or DISABLE the test.

FAIL MODE - If you want the test to fail if the source is in compliance, select IN. If you

want the test to fail if it is not in compliance, select OUT.

Limit 2, 3, and 5 through 12 tests

These software (S/W) tests are used to determine if a DUT is within speciﬁed high and low

measurement limits. Typically, Limit 2 is set for the widest limits, while additional limit tests

are set for progressively narrower limits.

Use the following menu sequence to conﬁgure the software limit tests:

Press CONFIG > press LIMIT > select S/W LIMITS > select the desired limit test

After selecting the desired limit test (i.e., LIM2), these menu options will be displayed:

CONTROL - Use to ENABLE or DISABLE the test.

LOLIM - Use to enter the low limit value. You will then be prompted to enter the bit pattern

for binning operations. Since binning operations are being done at this time, simply press

ENTER or EXIT.

Keithley SourceMeter 2400 Quick Results Guide

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