Browse Prior Art Database

Drill Hole Optical Inspection Tool

IP.com Disclosure Number: IPCOM000045345D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Johnson, M Wen, S [+details]

Abstract

Inside walls of drilled holes, such as vias in multilayer ceramic chip carriers, may be inspected with a fiber-optic reflectometer.