Granted Patent
Utility
US 5,407,861 · App. 08/068,139
Metallization over tungsten plugs
Inventors:
Maria Santina Marangon, Andrea Marmiroli, Giorgio Desanti
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: May 26, 1993
Inventors
Maria Santina Marangon
Andrea Marmiroli
Giorgio Desanti
Assignee (at issue)
SGS-Thomson Microelectronics S.A.
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.