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AC-SCAN: A DESIGN FOR TEST ALTERNATIVE TO BOUNDARY SCAN WHICH ALLOWS DETECTION OF AC SIGNAL FAILURE MODES

IP.com Disclosure Number: IPCOM000006584D
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2002-Jan-16
Document File: 4 page(s) / 227K

Publishing Venue

Motorola

Related People

Authors:
Michael Beckerle

Abstract

The AC-Scan technique is described where an AC test signal can be generated by being sent out of a test generator onto any output of a package, and can be observed by an input of a receiving package. A design incorporating this feature allows one to detect AC signal failure modes. This improves upon boundary scan tech- nology because boundary scan allows only the detec- tion of DC failures.