Granted Patent
Utility
US 6,720,590 · App. 10/338,476
C implants for improved SiGe bipolar yield
Inventors:
Douglas D. Coolbaugh, Kathryn T. Schonenberg
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jan 8, 2003
Inventors
Douglas D. Coolbaugh
Kathryn T. Schonenberg
Assignee (at issue)
International Business Machines Corporation
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.