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. 20, 2019
Filed:
Oct. 04, 2017
Vanguard International Semiconductor Corporation, Hsinchu, TW;
VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
A semiconductor device includes a semiconductor substrate having a first conductivity type, wherein the semiconductor substrate includes a first region and a second region. The semiconductor device also includes a buried layer disposed in the first region of the semiconductor substrate and having the first conductivity type, wherein the buried layer has a dopant concentration that is greater than that of the semiconductor substrate. The semiconductor device further includes an epitaxial layer disposed on the semiconductor substrate, and a first element disposed on the first region of the semiconductor substrate, wherein the first element includes a bipolar-complementary metal oxide semiconductor (CMOS)-double diffused metal oxide semiconductor (DMOS) (BCD) transistor. In addition, the semiconductor device includes a second element disposed on the second region of the semiconductor substrate, wherein the second element includes an ultra-high voltage (UHV) transistor.