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:
Sep. 07, 1993
Filed:
Nov. 21, 1991
Hideshi Kawasaki, Yamato, JP;
Hiroyuki Tokunaga, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor device comprises a substrate, a recess formed on the substrate, a first conductive type semiconductor region and a second conductive type semiconductor region having an opposite conductive type to the first conductive type formed in the recess formed on the substrate, and wiring portions, wherein the surfaces of the substrate, the first conductive type semiconductor region and the second conductive type semiconductor region and are continuously on one plane, and the wiring portions connected respectively to the first conductive type semiconductor region and the second conductive type semiconductor region are formed on and in contact with the plane and are all substantially on the same plane and electrically independent from each other.