Granted Patent
Utility
US 5,914,278 · App. 08/788,601
Backside etch process chamber and method
Inventors:
Charles A. Boitnott, Robert Shepherd
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Jan 23, 1997
Inventors
Charles A. Boitnott
Robert Shepherd
Assignee (at issue)
Gasonics International 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.