Granted Patent
Utility
US 4,894,353 · App. 07/187,738
Method of fabricating passivated tunnel oxide
Inventor:
Effiong Ibok
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Apr 29, 1988
Inventor
Effiong Ibok
Assignee (at issue)
Advanced Micro Devices, Inc.
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.