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Browse Prior Art Database

Pseudo Brewster Angle Of Incidence For Joining Or Removing A Chip By Laser Beam

IP.com Disclosure Number: IPCOM000052089D
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Chastang, JC Levanoni, M Tan, SI [+details]

Abstract

Individual chip heating by polarized laser beam of the appropriate wavelength, i.e., a wavelength at which silicon is opaque, for the purpose of joining a chip to or removing a chip from a chip carrier may be more efficiently done by tilting the laser beam so that it strikes the chip at the pseudo-Brewster angle.