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:
Apr. 24, 2012
Filed:
May. 22, 2007
Jen-cheng Liu, Hsin Chu, TW;
Dun-nian Yaung, Taipei, TW;
Jyh-ming Hung, Changhua, TW;
Wen-de Wang, Chiayi County, TW;
Chun-chieh Chuang, Tainan, TW;
Jen-Cheng Liu, Hsin Chu, TW;
Dun-Nian Yaung, Taipei, TW;
Jyh-Ming Hung, Changhua, TW;
Wen-De Wang, Chiayi County, TW;
Chun-Chieh Chuang, Tainan, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
The present disclosure provides an image sensor semiconductor device. The semiconductor device includes a semiconductor substrate; a first epitaxy semiconductor layer disposed on the semiconductor substrate and having a first type of dopant and a first doping concentration; a second epitaxy semiconductor layer disposed over the first epitaxy semiconductor layer and having the first type of dopant and a second doping concentration less than the first doping concentration; and an image sensor on the second epitaxy semiconductor layer.