Calibrating transition dependent timing errors in automatic test

Details Calibrating transition dependent timing errors in automatic test Calibrating transition dependent timing errors in automatic test

1994-04-07

1995-11-28

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Calibration

324617, 324532, G04F 1000

Patent

active

054711452

ABSTRACT:
A calibration method and system for substantially reducing one of the components of timing error in automatic test systems. The timing associated with digital stimulus and response circuitry in a tester is different for positive and negative signal transitions. This inherent timing difference is normally measured and compensated for during the tester calibration process. The present method and system uses a short circuited transmission line as a pulse generator to achieve superior stability and accuracy when calibrating transition dependent timing in automatic test systems.

REFERENCES:
patent: 4627268 (1986-12-01), Chu
patent: 4812764 (1989-03-01), Bendall
patent: 4814689 (1989-03-01), Obara
patent: 5047725 (1991-09-01), Strid et al.
patent: 5382910 (1995-01-01), Walsh
patent: 5384541 (1995-01-01), Chu et al.

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