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:
Jun. 18, 2013
Filed:
Jan. 07, 2013
Omnivision Technologies, Inc., Santa Clara, CA (US);
Hsin-Chih Tai, San Jose, CA (US);
Vincent Venezia, Los Gatos, CA (US);
Yin Qian, Milpitas, CA (US);
Duli Mao, Sunnyvale, CA (US);
Keh-Chiang Ku, Cupertino, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A backside illuminated imaging sensor with a seal ring support includes an epitaxial layer having an imaging array formed in a front side of the epitaxial layer. A metal stack is coupled to the front side of the epitaxial layer, wherein the metal stack includes a seal ring formed in an edge region of the imaging sensor. An opening is included that extends from the back side of the epitaxial layer to a metal pad of the seal ring to expose the metal pad. The seal ring support is disposed on the metal pad and within the opening to structurally support the seal ring.