Granted Patent
Utility
US 5,883,434 · App. 08/800,984
Semiconductor device having capped contact plug capable of suppressing increase of resistance
Inventor:
Ko Noguchi
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Feb 19, 1997
Inventor
Ko Noguchi
Assignee (at issue)
NEC CORPORATION
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.