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:
Nov. 18, 2014
Filed:
Jan. 12, 2012
Yung-fa Lin, Hsinchu, TW;
Shou-yi Hsu, Hsinchu, TW;
Meng-wei Wu, Hsinchu, TW;
Yi-chun Shih, Hsinchu, TW;
Main-gwo Chen, Hsinchu, TW;
Yung-Fa Lin, Hsinchu, TW;
Shou-Yi Hsu, Hsinchu, TW;
Meng-Wei Wu, Hsinchu, TW;
Yi-Chun Shih, Hsinchu, TW;
Main-Gwo Chen, Hsinchu, TW;
Anpec Electronics Corporation, Hsinchu, TW;
Abstract
A semiconductor device includes: a substrate including a first epitaxial layer that has a first electrical type, and a second epitaxial layer; a transistor that includes a source region and an insulating spacer; an inner surrounding structure including an annular trench and an insulating spacer; an outer surrounding structure that has a second electrical type opposite to the first electrical type, and that is disposed adjacent to an upper surface of the second epitaxial layer to surround and contact the inner surrounding structure; and a conductive structure connecting to the source region, and the inner and outer surrounding structures.