Granted Patent
Utility
US 5,162,890 · App. 07/681,159
Stacked capacitor with sidewall insulation
Inventor:
Douglas Butler
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Apr 5, 1991
Inventor
Douglas Butler
Assignees (at issue)
Ramtron Corporation
NMB Semiconductor Company, 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.