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Functional Diagnostics Access for Dense PCB Assemblies

IP.com Disclosure Number: IPCOM000012169D
Original Publication Date: 2003-Apr-15
Included in the Prior Art Database: 2003-Apr-15

Publishing Venue

IBM

Abstract

This article describes a method for providing non-invasive debug access for surface mount chips on a printed circuit board. The method requires a minimum of dedicated real-estate on the unit under test, and can allow access to 100% of the pins on a chip.