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.

Date of Patent:
Oct. 24, 2017

Filed:

Oct. 13, 2016
Applicant:

Omnivision Technologies, Inc., Santa Clara, CA (US);

Inventors:

Dyson H. Tai, San Jose, CA (US);

Duli Mao, Sunnyvale, CA (US);

Cunyu Yang, Milpitas, CA (US);

Gang Chen, San Jose, CA (US);

Assignee:

OmniVision Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/02 (2006.01); H01L 31/0264 (2006.01); H01L 31/0376 (2006.01); H01L 31/18 (2006.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14643 (2013.01); H01L 27/1461 (2013.01); H01L 27/1463 (2013.01); H01L 27/1464 (2013.01); H01L 27/14612 (2013.01);
Abstract

An image sensor includes a semiconductor material with a photodiode disposed in the semiconductor material. The image sensor also includes a transfer gate electrically coupled to the photodiode to extract image charge from the photodiode in response to a transfer signal. A floating diffusion is electrically coupled to the transfer gate to receive the image charge from the photodiode. At least one isolation structure is disposed in the photodiode, and the at least one isolation structure extends from a surface of the semiconductor material into the photodiode.


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