Dismiss
The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Laser EC Sites With Transparent Substrates

IP.com Disclosure Number: IPCOM000048475D
Original Publication Date: 1982-Feb-01
Included in the Prior Art Database: 2005-Feb-08

Publishing Venue

IBM

Related People

Authors:
Moskowitz, PA [+details]

Abstract

The use of an optically transparent sapphire substrate in Josephson technology will allow laser modification techniques to be used for Josephson chip engineering changes without the necessity of chip removal. Sapphire has an expansion coefficient that matches that of lead wiring more closely than that of silicon and is less susceptible to hillock formation than silicon. Also, sapphire is a close match to other super-conductors, such as niobium, and has a high coefficient of heat conductivity.