Granted Patent
Utility
US 5,322,712 · App. 08/064,185
Process for improved quality of CVD copper films
Inventors:
John Anthony Thomas Norman, Arthur Kenneth Hochberg, David A. Roberts
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: May 18, 1993
Inventors
John Anthony Thomas Norman
Arthur Kenneth Hochberg
David A. Roberts
Assignee (at issue)
Air Products and Chemicals, 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.