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. 22, 2026
Filed:
Dec. 20, 2023
Db Hitek Co., Ltd., Seoul, KR;
Yong Shin Han, Incheon, KR;
Myeong Bum Pyun, Incheon, KR;
DB HiTek Co., Ltd., Seoul, KR;
Abstract
A semiconductor device is provided. The semiconductor device comprises: a substrate comprising an epitaxial layer; a first gate electrode and a second gate electrode disposed on the substrate; a first type body region disposed within the substrate between the first gate electrode and the second gate electrode, a pillar region extending from the first type body region toward a lower surface of the substrate and disposed within the epitaxial layer; and a first region and a second region of the pillar region, each comprising a portion whose width decreases and then increases along a first direction from an upper surface of the substrate toward the lower surface, wherein the first region is disposed between the first type body region and the second region, the first region comprises a first width that is a minimum width of widths of the pillar region and a second width that is greater than the first width, the second region comprises a third width that is greater than the first width and less than the second width, and the first region and the second region are divided with the second width as a boundary.