Granted Patent
Utility
US 5,100,820 · App. 07/711,035
MOSFET fabrication process with lightly-doped drain using local oxidation step to pattern gate electrode
Inventor:
Ko Tsubone
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: Jun 6, 1991
Inventor
Ko Tsubone
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.