Granted Patent
Utility
US 6,313,521 · App. 09/433,112
Semiconductor device and method of manufacturing the same
Inventor:
Mikio Baba
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Nov 3, 1999
Inventor
Mikio Baba
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.