Granted Patent
Utility
US 4,859,620 · App. 07/196,416
Graded extended drain concept for reduced hot electron effect
Inventors:
Ching-Yeu Wei, Joseph M. Pimbley
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: May 20, 1988
Inventors
Ching-Yeu Wei
Joseph M. Pimbley
Assignee (at issue)
General Electric Company
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.