Granted Patent
Utility
US 5,036,021 · App. 07/259,558
Method of producing a semiconductor device with total dielectric isolation
Inventor:
Hiroshi Goto
Patented Case
View Patent ↗
Granted: Jul 30, 1991
Filed: Oct 18, 1988
Inventor
Hiroshi Goto
Assignee (at issue)
Fujitsu Limited
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.