Patent ID: 6604058
Filing Date: 2003-08-05
Classification: G01R

Abstract:
A test signal supplying apparatus for a semiconductor device testing apparatus that tests a plurality of semiconductor devices; comprising:a test pattern generating unit for outputting an input signal pattern to said semiconductor devices and receiving a match signal which indicates said semiconductor device, to which said input signal pattern is applied, is passed in said test; and a match-fail detecting unit for receiving said match signal to detect a semiconductor device that fails in said test and outputting a match-fail signal for identifying said semiconductor device that fails in said test; and a stop signal output unit connected to said match-fail detecting unit for receiving said match-fail signal from said match-fail detecting unit, storing said match-fail signal, and outputting a first stop signal that stops an application of said input signal pattern to said semiconductor devices that fail in said test identified by said stored match-fail signal.