Granted Patent
Utility
US 4,619,839 · App. 06/680,878
Method of forming a dielectric layer on a semiconductor device
Inventor:
William I. Lehrer
Patented Case
View Patent ↗
Granted: Oct 28, 1986
Filed: Dec 12, 1984
Inventor
William I. Lehrer
Assignee (at issue)
Fairchild Camera & Instrument Corp.
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.