Granted Patent
Utility
US 5,032,878 · App. 07/459,506
High voltage planar edge termination using a punch-through retarding implant
Inventors:
Robert B. Davies, Lowell E. Clark, David N. Okada
Patented Case
View Patent ↗
Granted: Jul 16, 1991
Filed: Jan 2, 1990
Inventors
Robert B. Davies
Lowell E. Clark
David N. Okada
Assignee (at issue)
Motorola, 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.