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:
Aug. 23, 2011

Filed:

May. 22, 2006
Applicants:

Hsing-yi Chien, Taichung, TW;

Yu-chang Jong, Hsinchu, TW;

Te-yin Hsia, Hsin-Chu, TW;

Ruey-shin Liu, Hsin-Chu, TW;

Inventors:

Hsing-Yi Chien, Taichung, TW;

Yu-Chang Jong, Hsinchu, TW;

Te-Yin Hsia, Hsin-Chu, TW;

Ruey-Shin Liu, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/062 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor device includes a first high-voltage well having a first dopant disposed in a semiconductor substrate; a second high-voltage well having a second dopant disposed in the semiconductor substrate, laterally adjacent to the first high-voltage well; a low-voltage well having the second dopant disposed overlying the second high-voltage well; a drain region having the first dopant disposed in the first high-voltage well; a source having the first dopant disposed in the low-voltage well; and a gate disposed on the semiconductor substrate and laterally between the source and the drain, wherein the gate includes a thin gate dielectric and a gate electrode.


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