Accession Number : ADB042744

Title :   Integrated Circuit Computer Analysis.

Descriptive Note : Final technical rept. 4 Aug 78-4 Apr 79,

Corporate Author : SCIENCE APPLICATIONS INC LA JOLLA CA

Personal Author(s) : Stimson, Michael J. ; Blase, Frederick G.

Report Date : 04 SEP 1979

Pagination or Media Count : 97

Abstract : This document discusses the approach taken and the results obtained from the Integrated Circuit Computer Analysis project. The ultimate goal of the research has been to develop a computer based procedure for non-destructive identification of integrated circuits. The initial phase of the project began with a review of the literature on computerized circuit analysis and reverse engineering. The resulting bibliography contains state-of-the-art information on this topic. The most important findings were the method used to identify combinational circuits (Quine-McCluskey algorithm) and a clearly defined set of limits on the problem of identifying sequential circuits. Since the Quine-McCluskey algorithm works only for combinational circuits, an additional microprocessor based algorithm was developed to differentiate sequential from combinational circuits. The report describes the hardware constructed to drive the IC's through testing procedures, and the method which was developed (utilizing a curve tracer and the interface device) used to identify both the IC's technology and each pin's function. Finally, the report summarizes the testing which was performed to validate the procedures and gives recommendations for future research. (Author)

Descriptors :   *CIRCUIT ANALYSIS, *INTEGRATED CIRCUITS, *CIRCUIT TESTERS, *DIGITAL COMPUTERS, FUNCTIONAL ANALYSIS, LOGIC CIRCUITS, NONDESTRUCTIVE TESTING, ALGORITHMS.

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE