Granted Patent
Utility
US 5,346,584 · App. 08/098,164
Planarization process for IC trench isolation using oxidized polysilicon filler
Inventors:
Andre I. Nasr, Steven S. Cooperman
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Jul 28, 1993
Inventors
Andre I. Nasr
Steven S. Cooperman
Assignee (at issue)
Digital Equipment 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.