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:
Aug. 11, 2026
Filed:
Mar. 03, 2022
Csmc Technologies Fab2 Co., Ltd., Wuxi, CN;
CSMC TECHNOLOGIES FAB2 CO., LTD., Wuxi, CN;
Abstract
A diode and a manufacturing method therefor, and a semiconductor device. The diode includes: a substrate; an insulating buried layer provided on the substrate; a semiconductor layer provided on the insulating buried layer; anode; and a cathode, comprising: a trench-type contact, a trench being filled with a contact material, the trench extending from a first surface of the semiconductor layer to a second surface of the semiconductor layer, the first surface being a surface distant from the insulating buried layer, and the second surface being a surface facing the insulating buried layer; a cathode doped region surrounding the trench-type contact around and at the bottom of the trench-type contact, and also disposed on the first surface around the trench-type contact; and a negative electrode located on the cathode doped region and electrically connected to the cathode doped region.