Granted Patent
Utility
US 5,622,890 · App. 08/279,027
Method of making contact regions for narrow trenches in semiconductor devices
Inventors:
James D. Beasom, Dustin A. Woodbury
Patented Case
View Patent ↗
Granted: Apr 22, 1997
Filed: Jul 22, 1994
Inventors
James D. Beasom
Dustin A. Woodbury
Assignee (at issue)
HARRIS 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.