Granted Patent
Utility
US 6,074,939 · App. 09/030,775
Method for fabricating semiconductor device
Inventor:
Susumu Watanabe
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Feb 26, 1998
Inventor
Susumu Watanabe
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.