Granted Patent
Utility
US 4,942,449 · App. 07/173,918
Fabrication method and structure for field isolation in field effect transistors on integrated circuit chips
Inventors:
Ching-Yeu Wei, Patricia A. Piacente, Henry H. Woodbury
Patented Case
View Patent ↗
Granted: Jul 17, 1990
Filed: Mar 28, 1988
Inventors
Ching-Yeu Wei
Patricia A. Piacente
Henry H. Woodbury
Assignee (at issue)
General Electric Company
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.