Patent ID: 8055962
Filing Date: 2011-11-08
Classification: G01R,H01L

Abstract:
1. A process of testing an integrated circuit having a functional circuit and a test circuit for testing the functional circuit, comprising: A. receiving a test stimulus signal on a functional input pad of the integrated circuit that is coupled to a functional input of the functional circuit; B. outputting a test response signal to a functional output pad of the integrated circuit that is connected to an output of the functional circuit; C. connecting the test response signal from the functional output pad through a lead that is external to the integrated circuit to a test input pad that is connected to an input of the test circuit; D. receiving a strobe signal on a strobe input pad of the integrated circuit that is connected to a strobe input of the test circuit; E. outputting a test result signal to a test output pad of the integrated circuit that is connected to an output from the test circuit; and F. evaluating the test result signal in a tester external of the integrated circuit to determine if the functional circuit responded correctly to the test stimulus signal.