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:
Nov. 03, 2015
Filed:
Jun. 30, 2014
Omnivision Technologies, Inc., Santa Clara, CA (US);
Duli Mao, Sunnyvale, CA (US);
Dyson H. Tai, San Jose, CA (US);
Vincent Venezia, Los Gatos, CA (US);
Yin Qian, Milpitas, CA (US);
Gang Chen, San Jose, CA (US);
Howard E. Rhodes, Nokomis, FL (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A backside illuminated image sensor includes a semiconductor layer and a trench disposed in the semiconductor layer. The semiconductor layer has a frontside surface and a backside surface. The semiconductor layer includes a light sensing element of a pixel array disposed in a sensor array region of the semiconductor layer. The pixel array is positioned to receive external incoming light through the backside surface of the semiconductor layer. The semiconductor layer also includes a light emitting element disposed in a periphery circuit region of the semiconductor layer external to the sensor array region. The trench is disposed in the semiconductor layer between the light sensing element and the light emitting element.