Granted Patent
Utility
US 5,155,576 · App. 07/675,946
Semiconductor integrated circuit having a multilayer wiring structure
Inventor:
Kazuyuki Mizushima
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Mar 27, 1991
Inventor
Kazuyuki Mizushima
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.