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:
Aug. 09, 2016
Filed:
Mar. 24, 2015
Applicant:
Seiko Instruments Inc., Chiba-shi, Chiba, JP;
Inventor:
Takeshi Koyama, Chiba, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/062 (2012.01); H01L 31/113 (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 27/14607 (2013.01);
Abstract
An image sensor has photodiodes formed in a Si substrate and configured to prevent carriers generated at a deep position of the Si substrate from affecting adjacent photodiodes due to lateral diffusion (crosstalk between pixels). A modified layer is formed between adjacent photodiodes and at a depth below that of the photodiodes by a laser to generate a recombination level to thereby suppress crosstalk between pixels.