Patent ID: 7121132
Filing Date: 2006-10-17
Classification: G01R

Abstract:
1. A method for calibrating a semiconductor test instrument for performing timing calibration of a semiconductor test instrument having drivers for generating signals synchronizing with clock signals and comparators for performing comparisons synchronizing with strobe signals, comprising: a first step of adjusting phases of said strobe signals corresponding to each of said comparators on the basis of said clock signals corresponding to one of said drivers; a second step of adjusting phases of said clock signals corresponding to each of said drivers corresponded to each of said comparators on the basis of each of said strobe signals whose phase adjustment is completed in said first step; and said second step is executed by using a first calibration board in which each of said drivers corresponds to each of said comparators and the output end of the corresponding driver and the input end of the corresponding comparator are connected to each other.