Granted Patent
Utility
US 6,146,972 · App. 09/095,681
Method for fabricating semiconductor device
Inventor:
Ichiro Yamamoto
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jun 10, 1998
Inventor
Ichiro Yamamoto
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.