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:
Sep. 15, 2009
Filed:
Feb. 12, 2008
Vincent Venezia, Sunnyvale, CA (US);
Hsin-chih Tai, Cupertino, CA (US);
Duli Mao, Sunnyvale, CA (US);
Wei Dong Qian, Los Gatos, CA (US);
Ashish Shah, Milpitas, CA (US);
Howard Rhodes, San Martin, CA (US);
Vincent Venezia, Sunnyvale, CA (US);
Hsin-Chih Tai, Cupertino, CA (US);
Duli Mao, Sunnyvale, CA (US);
Wei Dong Qian, Los Gatos, CA (US);
Ashish Shah, Milpitas, CA (US);
Howard Rhodes, San Martin, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
An image sensor includes an optical sensor region, a stack of dielectric and metal layers, and a buried focusing layer. The optical sensor is disposed within a semiconductor substrate. The stack of dielectric and metal layers are disposed on the semiconductor substrate above the optical sensor region. The metal layers include optical pass-throughs aligned to expose an optical path through the stack form a top dielectric layer through to the optical sensor region. The buried focusing layer is disposed over a conforming metal layer of the metal layers within the stack. The buried focusing layer includes a curved surface conformed by the optical pass-through of the conforming metal layer to focus light onto the optical sensor region.