Integrated circuit chip and a method for testing the same

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United States of America Patent

PATENT NO 9506986
APP PUB NO 20150160293A1
SERIAL NO

14476883

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Abstract

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An integrated circuit chip includes at least two integrated circuits, at least three scan chains, and a multiplexor circuitry. Each integrated circuit includes an integrated circuit input port and an integrated circuit output port. The scan chains and the integrated circuits are coupled by default with a series chain having integrated circuits and scan chains alternating each other. The series chain starts with an initial scan chain and ends with the end scan chain. Each scan chain except the initial one includes a first scan chain input port coupled by default with the integrated circuit output port of the respective adjacent integrated circuit. Each scan chain except the end one includes a first scan chain output port coupled by default with the integrated circuit input port of the respective adjacent integrated circuit.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haller, Wilhelm Remshalden, DE 32 162
Kaltenbach, Markus Holzgerlingen, DE 70 468
Krauch, Ulrich Dettenhausen, DE 18 63
Maeding, Nicolas Holzgerlingen, DE 20 142
Zoellin, Christian Weinstadt, DE 44 85

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