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:
May. 02, 2017
Filed:
Oct. 06, 2014
Hidefumi Takaya, Toyota, JP;
Jun Saito, Nagoya, JP;
Akitaka Soeno, Toyota, JP;
Kimimori Hamada, Toyota, JP;
Shoji Mizuno, Okazaki, JP;
Sachiko Aoi, Nagoya, JP;
Yukihiko Watanabe, Nagoya, JP;
Hidefumi Takaya, Toyota, JP;
Jun Saito, Nagoya, JP;
Akitaka Soeno, Toyota, JP;
Kimimori Hamada, Toyota, JP;
Shoji Mizuno, Okazaki, JP;
Sachiko Aoi, Nagoya, JP;
Yukihiko Watanabe, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A semiconductor device includes a termination trench surrounding a region in which a plurality of gate trenches is provided; a p-type lower end region being in contact with a lower end of the termination trench; a p-type outer circumference region being in contact with the termination trench from an outer circumferential side and exposed on a surface of the semiconductor device; a plurality of guard ring regions of a p-type provided on an outer circumferential side of the p-type outer circumference region and exposed on the surface; and an n-type outer circumference region separating the p-type outer circumference region from the guard ring regions and separating the guard ring regions from each another.