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:
Dec. 26, 2023
Filed:
Aug. 30, 2021
Db Hitek Co., Ltd., Seoul, KR;
Ji Eun Lee, Seoul, KR;
Jae Hyun Kim, Seoul, KR;
DB HITEK CO., LTD., Seoul, KR;
Abstract
A super junction semiconductor device includes a substrate of a first conductive type, an epitaxial layer disposed on the substrate, a plurality of pillars extending in a vertical direction and each being alternately arranged within the epitaxial layer, gate structures disposed on the epitaxial layer in the active region, a reverse recovery layer of a second conductive type, the reverse recovery layer disposed on both the pillars and the epitaxial layer and in the transition region to distribute a reverse recovery current, and at least one high concentration region surrounding an upper portion of at least one of the pillars in the peripheral region, the high concentration region having a horizontal width greater than that of one of the pillars provided in the transition region. Thus, a breakdown voltage may be inhibited from decreasing in the peripheral region.