Patent ID: 9141499
Filing Date: 2015-09-22
Classification: G01R,G06F

Abstract:
1. A semiconductor inspection apparatus comprising: a test-program execution part configured to execute a test program by applying a specific signal to a test-signal input pin of a device to be tested in accordance with the test program; a signal-condition detection part configured to detect an unstable region and a stable region of a signal at a signal output pin of the device to be tested while the test program is executed; a test-time calculation part configured to calculate an optimum test time having a duration from a period of the unstable region to a certain period at a leading portion of the stable region subsequent to the unstable region based on the unstable and stable regions detected by the signal-condition detection part; a test-program modification part configured to replace a test time in the test program; and a signal waveform importing part configured to import a signal at the signal output pin of the device to be tested based on the test time written in the test program in which the test time is replaced, wherein the test-program execution part executes the test program again after the test time is replaced in the test program by the test-program modification part.