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.

Date of Patent:
Oct. 11, 2016

Filed:

Jul. 14, 2015
Applicant:

United Microelectronics Corp., Hsinchu, TW;

Inventors:

Yu-Cheng Liao, Douliu, TW;

Yu-Chun Chen, Hsinchu County, TW;

Ping-Chen Chang, Pingtung, TW;

Tien-Hao Tang, Hsinchu, TW;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/02 (2006.01); H01L 29/861 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0255 (2013.01); H01L 27/0259 (2013.01); H01L 27/0262 (2013.01); H01L 29/861 (2013.01);
Abstract

A semiconductor structure suitable for ESD protection application is provided. The semiconductor structure includes a first well, a second well, a third well, a first fin, a second fin, an anode, a cathode and a first doping region. The first well and the second well are disposed in the third well. The first fin is disposed on the first well. The second fin is disposed on the second well. The anode is disposed on the first fin. The cathode is disposed on the second fin. The first doping region is disposed under the first fin, and separates the first fin from the first well. The first well, the second well, the first fin and the second fin have a first doping type. The third well and the first doping region have a second doping type.


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