Granted Patent
Utility
US 4,680,603 · App. 06/722,640
Graded extended drain concept for reduced hot electron effect
Inventors:
Ching-Yeu Wei, Joseph M. Pimbley
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Apr 12, 1985
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.