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. 13, 2013

Filed:

Oct. 12, 2011
Applicants:

Lu-an Chen, Keelung, TW;

Tai-hsiang Lai, Miaoli County, TW;

Tien-hao Tang, Hsinchu, TW;

Inventors:

Lu-An Chen, Keelung, TW;

Tai-Hsiang Lai, Miaoli County, TW;

Tien-Hao Tang, Hsinchu, TW;

Assignee:

United Microelectronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H01L 31/062 (2012.01);
U.S. Cl.
CPC ...
Abstract

A method for forming an NMOS transistor includes forming a P-substrate; forming an N-well on the P-substrate; forming an N-drift region on the N-well; forming an n+ drain on the N-drift region; forming a plurality of first contacts on the n+ drain along a longitudinal direction; forming a P-body on the N-well; forming a source on the P-body, the source including a plurality of n+ doped regions and at least one p+ doped region arranged along the longitudinal direction; forming a plurality of second contacts on the plurality of n+ doped regions and the at least one p+ doped region; forming a polygate on the P-body; and forming a gate oxide between the polygate and the source.


Find Patent Forward Citations

Chen, Lu-An. (2013). Method of manufacturing nmos transistor with low trigger voltage (U.S. Patent No. 8507981). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8507981

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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