The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1992
Filed:
Dec. 20, 1988
Nobuhiko Osawa, Yamanashi, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Pioneer Video Corporation, Yamanashi, JP;
Abstract
A metal insulated semiconductor field effect transistor (MIS-FET) includes a substrate, a semiconductor layer, and an oxide film on the semiconductor layer. Source and drain regions are formed by doping the semiconductor layer with impurities. A gate electrode is formed on the oxide film between the source and drain regions. An electrode is provided on the opposite side of the drain region from the gate electrode without contacting the gate electrode. The electrode is connected to either the source region or the substrate. Thus, a high strength against static electricity is performed without using a large area on the chip.