Granted Patent
Utility
US 5,485,025 · App. 08/349,343
Depleted extrinsic emitter of collector-up heterojunction bipolar transistor
Inventors:
Hin Fai Chau, Hua Q. Tserng
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Dec 2, 1994
Inventors
Hin Fai Chau
Hua Q. Tserng
Assignee (at issue)
Texas Instruments Incorporated
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.