Granted Patent
Utility
US 5,894,158 · App. 07/769,185
Having halo regions integrated circuit device structure
Inventor:
Che-Chia Wei
Patented Case
View Patent ↗
Granted: Apr 13, 1999
Filed: Sep 30, 1991
Inventor
Che-Chia Wei
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.