Granted Patent
Utility
US 5,956,583 · App. 08/885,707
Method for forming complementary wells and self-aligned trench with a single mask
Inventor:
Robert T. Fuller
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Jun 30, 1997
Inventor
Robert T. Fuller
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.