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. 24, 2020
Filed:
Apr. 04, 2019
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Kohei Ebihara, Tokyo, JP;
Hiroshi Watanabe, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
Supposing x is defined as a position of an end of a depletion layer extending when a rated voltage V [V] is applied to a rear surface electrode, Wis defined as a distance between the position x and an outer peripheral edge of a surface electrode in an outer peripheral direction, Wis defined as a distance between the position x and an outer peripheral edge of a field insulating film in the outer peripheral direction, t [μm] is defined as a film thickness t [μm] of the field insulating film, a layout of a terminal part is defined so that an electrical field in the field insulating film at the position x expressed as WV/t(W+W) is 3 MV/cm or smaller.