Patent ID: 6154039
Filing Date: 2000-11-28
Classification: G01R

Abstract:
An apparatus for performing functional analysis of an integrated circuit, the apparatus comprising:(a) an OBIC system including(i) a radiation source configured to produce radiation which, when directed onto said integrated circuit, generates mobile charge carriers, and(ii) a controller configured to direct said radiation onto predefined regions of said integrated circuit;(b) a functional tester electronically coupled to multiple pins, other than a power pin, of the integrated circuit and being configured to provide time varying test signals to said multiple pins; and(c) an interface coupled to said power pin of the integrated circuit and coupled to said OBIC system such that said interface provides a controlled voltage level to the power pin of said integrated circuit while said functional tester is controlling the input to said multiple pins and while allowing an OBIC signal to be provided from the integrated circuit to said OBIC system, wherein said OBIC signal is caused by a current of said mobile charge carriers induced in the integrated circuit by said radiation.