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:
Jun. 26, 2018
Filed:
Nov. 01, 2017
Fuji Electric Co., Ltd., Kawasaki-shi, Kanagawa, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-Shi, Kanagawa, JP;
Abstract
Each first p-type region is provided between adjacent trenches embedded with a MOS gate and is in contact with a p-type base region. Second p-type regions face a bottom and bottom corner portions of the trenches in a depth direction. An n-type CS region is a current spread layer provided between the first p-type regions and the second p-type regions. The n-type CS region is provided only in an active region and an end thereof is positioned at a boundary of the active region and an edge termination region. Further, the n-type CS region extends to be flush with or farther inward than an outermost first p-type region. An outermost p-type contact region extends from a drop between the active region and the edge termination region to the edge termination region and extends beyond the n-type CS region.