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:
Nov. 25, 2014

Filed:

May. 14, 2013
Applicant:

United Microelectronics Corp., Hsinchu, TW;

Inventor:

Kun-Huang Yu, New Taipei, TW;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H01L 29/40 (2006.01); H01L 29/66 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 29/404 (2013.01); H01L 29/66681 (2013.01); H01L 29/7823 (2013.01); H01L 29/407 (2013.01);
Abstract

A semiconductor structure comprises a substrate having a first conductive type; a deep well having a second conductive type formed in the substrate and extending down from a surface of the substrate; a first well and a second well respectively having the first and second conductive types formed in the deep well, and extending down from the surface of the substrate; a gate electrode formed on the substrate and disposed between the first and second wells; an isolation extending down from the surface of the substrate and disposed between the gate electrode and the second well; a conductive plug including a first portion and a second portion electrically connected to each other, and the first portion electrically connected to the gate electrode, and the second portion comprising at least two fingers penetrating into the isolation, and the fingers spaced apart and electrically connected to each other.


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