Granted Patent
Utility
US 5,581,097 · App. 08/321,736
Method of fabricating semiconductor device using shared contact hole masks and semiconductor device using same
Inventor:
Masaaki Nariishi
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Oct 12, 1994
Inventor
Masaaki Nariishi
Assignee (at issue)
Kawasaki Steel 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.