Granted Patent
Utility
US 4,702,967 · App. 06/874,393
Multiple-layer, multiple-phase titanium/nitrogen adhesion/diffusion barrier layer structure for gold-base microcircuit interconnection
Inventors:
Jimmy C. Black, Bruce Edmunds Roberts
Patented Case
View Patent ↗
Granted: Oct 27, 1987
Filed: Jun 16, 1986
Inventors
Jimmy C. Black
Bruce Edmunds Roberts
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.