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:
Mar. 26, 2013
Filed:
Aug. 03, 2009
Jason D. Hibbeler, Essex Junction, VT (US);
Daniel N. Maynard, Essex Junction, VT (US);
Kevin N. Ogg, Essex Junction, VT (US);
Richard J. Rassel, Essex Junction, VT (US);
Jason D. Hibbeler, Essex Junction, VT (US);
Daniel N. Maynard, Essex Junction, VT (US);
Kevin N. Ogg, Essex Junction, VT (US);
Richard J. Rassel, Essex Junction, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A pixel structure for an image sensor includes a semiconductor material portion having a coplanar and contiguous semiconductor surface and including four photodiodes, four channel regions, and a common floating diffusion region. Each of the four channel regions is directly adjoined to one of the four photodiodes and the common floating diffusion region. The four photodiodes are located within four different quadrants as defined employing a vertical line passing through a point within the common floating diffusion region as a center axis. The common floating diffusion region, a reset gate transistor, a source follower transistor, and a row select transistor are located within four different quadrants as defined employing a vertical line passing through a point within one of the photodiodes as an axis.