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. 31, 2013
Filed:
Nov. 07, 2008
John P. Mccarten, Penfield, NY (US);
Joseph R. Summa, Hilton, NY (US);
Cristian A. Tivarus, Rochester, NY (US);
Todd J. Anderson, Fairport, NY (US);
Eric G. Stevens, Webster, NY (US);
John P. McCarten, Penfield, NY (US);
Joseph R. Summa, Hilton, NY (US);
Cristian A. Tivarus, Rochester, NY (US);
Todd J. Anderson, Fairport, NY (US);
Eric G. Stevens, Webster, NY (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A back-illuminated image sensor includes a sensor layer disposed between an insulating layer and a circuit layer electrically connected to the sensor layer. An imaging area includes a plurality of photodetectors is formed in the sensor layer and a well that spans the imaging area. The well can be disposed between the backside of the sensor layer and the photodetectors, or the well can be a buried well formed adjacent to the backside of the sensor layer with a region including formed between the photodetectors and the buried well. One or more side wells can be formed laterally adjacent to each photodetector. The dopant in the well has a segregation coefficient that causes the dopant to accumulate on the sensor layer side of an interface between the sensor layer and the insulating layer.