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:
Dec. 11, 2012
Filed:
Dec. 14, 2010
Vincent Venezia, Los Gatos, CA (US);
Ashish Shah, Milpitas, CA (US);
Rongsheng Yang, Palo Alto, CA (US);
Duli Mao, Sunnyvale, CA (US);
Yin Qian, Milpitas, CA (US);
Hsin-chih Tai, San Jose, CA (US);
Howard E. Rhodes, San Martin, CA (US);
Vincent Venezia, Los Gatos, CA (US);
Ashish Shah, Milpitas, CA (US);
Rongsheng Yang, Palo Alto, CA (US);
Duli Mao, Sunnyvale, CA (US);
Yin Qian, Milpitas, CA (US);
Hsin-Chih Tai, San Jose, CA (US);
Howard E. Rhodes, San Martin, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
An image sensor pixel includes a substrate, a first epitaxial layer, a collector layer, a second epitaxial layer and a light collection region. The substrate is doped to have a first conductivity type. The first epitaxial layer is disposed over the substrate and doped to have the first conductivity type as well. The collector layer is selectively disposed over at least a portion of the first epitaxial layer and doped to have a second conductivity type. The second epitaxial layer is disposed over the collector layer and doped to have the first conductivity type. The light collection region collects photo-generated charge carriers and is disposed within the second epitaxial layer. The light collection region is also doped to have the second conductivity type.