IP Library Granted Patent US 4,731,340
Granted Patent Utility
US 4,731,340 · App. 07/017,957

Dual lift-off self aligning process for making heterojunction bipolar transistors

Inventors: Mau-Chung Frank Chang, Peter M. Asbeck
Patented Case View Patent ↗
Granted: Mar 15, 1988 Filed: Feb 24, 1987
Inventors
Mau-Chung Frank Chang
Peter M. Asbeck
Assignee (at issue)
Rockwell International Corporation

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Quick Facts
Patent No.
US 4,731,340
App. No.
07/017,957
Filed
1987-02-24
Granted
1988-03-15
Kind
A