Granted Patent
Utility
US 5,972,778 · App. 08/767,713
Method of fabricating semiconductor device
Inventor:
Masayuki Hamada
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Dec 17, 1996
Inventor
Masayuki Hamada
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.