Granted Patent
Utility
US 4,847,111 · App. 07/213,861
Plasma-nitridated self-aligned tungsten system for VLSI interconnections
Inventors:
Yu C. Chow, Kuan-Yang Liao, Maw-Rong Chin
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jun 30, 1988
Inventors
Yu C. Chow
Kuan-Yang Liao
Maw-Rong Chin
Assignee (at issue)
Hughes Aircraft 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.