Granted Patent
Utility
US 4,818,727 · App. 07/065,344
Method of improving the corrosion resistance of aluminum contacts on semiconductors
Inventor:
Timothy E. Turner
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Jun 23, 1987
Inventor
Timothy E. Turner
Assignee (at issue)
STMICROELECTRONICS, 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.