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:
Jul. 28, 2015
Filed:
Nov. 10, 2014
Richtek Technology Corporation, Chupei, Hsinchu, TW;
Chung-Yu Hung, Changhua County, TW;
Jian-Hsing Lee, Chiayi County, TW;
Tzu-Cheng Kao, Hsinchu County, TW;
Tsung-Yi Huang, Hsinchu, TW;
RICHTEK TECHNOLOGY CORPORATION, Zhubei, TW;
Abstract
A silicon controlled rectifier includes: a substrate; a N well and a P well positioned on a side of the substrate and contact with each other; a first N region and a first P region positioned on an upper surface of the N well and contact with each other; a second N region and a second P region positioned on an upper surface of the P well and contact with each other; a first oxide isolation region isolating the first P region and the second N region; a second oxide isolation region isolating the second N region and the second P region; an anode terminal coupled with the first N region and the first P region; and a cathode terminal coupled with the second N region and the second P region. The first P region has a doping concentration less than 80% of that of the second P region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile