Granted Patent
Utility
US 6,251,797 · App. 09/515,670
Method of fabricating semiconductor device
Inventor:
Isamu Nishimura
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Feb 29, 2000
Inventor
Isamu Nishimura
Assignee (at issue)
ROHM CO., LTD.
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.