Granted Patent
Utility
US 6,426,558 · App. 09/854,890
Metallurgy for semiconductor devices
Inventors:
Jonathan D. Chapple-Sokol, Paul M. Feeney, Robert M. Geffken, David V. Horak, Mark P. Murray, Anthony K. Stamper
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: May 14, 2001
Inventors
Jonathan D. Chapple-Sokol
Paul M. Feeney
Robert M. Geffken
David V. Horak
Mark P. Murray
Anthony K. Stamper
Assignee (at issue)
International Business Machines 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.