Granted Patent
Utility
US 4,992,840 · App. 07/412,067
Carbon doping MOSFET substrate to suppress hit electron trapping
Inventors:
Homayoon Haddad, Leonard Forbes, Wayne P. Richling
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Sep 21, 1989
Inventors
Homayoon Haddad
Leonard Forbes
Wayne P. Richling
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.