Granted Patent
Utility
US 6,093,591 · App. 09/056,209
Method of fabricating a semiconductor integrated circuit device
Inventor:
Shigeki Sawada
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Apr 7, 1998
Inventor
Shigeki Sawada
Assignee (at issue)
Matsushita Electronics 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.