Granted Patent
Utility
US 6,287,978 · App. 09/344,277
Method of etching a substrate
Inventors:
David S. Becker, Guy T. Blalock, Fred L. Roe
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Jun 30, 1999
Inventors
David S. Becker
Guy T. Blalock
Fred L. Roe
Assignee (at issue)
Micron Technology, Inc.
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.