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:
May. 28, 2013
Filed:
Jan. 16, 2012
Shu-wei Chung, Taichung, TW;
Kuo-feng Yu, Zhudong Township, TW;
Shu-Wei Chung, Taichung, TW;
Kuo-Feng Yu, Zhudong Township, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
A device includes a first and a second HVMOS device, each includes a gate electrode over a semiconductor substrate, wherein the gate electrodes of the first and the second HVMOS devices have a first gate length and a second gate length, respectively, with the second gate length being greater than the first gate length. Each of the first and second HVMOS devices includes a first and a second well region of a p-type and an n-type, respectively, and a native region between and contacting the first and the second well regions. The first and the second well regions have higher impurity concentrations than the native region. The native region of the first HVMOS device and the native region of the second HVMOS device have a first native-region length and a second native-region length, respectively, wherein the second native-region length is greater than the first native-region length.