Granted Patent
Utility
US 5,880,022 · App. 07/815,316
Self-aligned contact window
Inventors:
Kuo-Hua Lee, Chen-Hua Yu
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Dec 30, 1991
Inventors
Kuo-Hua Lee
Chen-Hua Yu
Assignee (at issue)
LUCENT TECHNOLOGIES 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.