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.:

US 8866249 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 21, 2014

Filed:

Oct. 09, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Sakae Hashimoto, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0203 (2014.01); H01L 31/0232 (2014.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02327 (2013.01); H01L 27/14685 (2013.01); H01L 27/14632 (2013.01); H01L 27/14627 (2013.01); H01L 27/14643 (2013.01); H01L 27/14621 (2013.01); H01L 27/14623 (2013.01);
Abstract

A photoelectric conversion device is provided which is capable of improving the light condensation efficiency without substantially decreasing the sensitivity. The photoelectric conversion device has a first pattern provided above an element isolation region formed between adjacent two photoelectric conversion elements, a second pattern provided above the element isolation region and above the first pattern, and microlenses provided above the photoelectric conversion elements with the first and the second patterns provided therebetween. The photoelectric conversion device further has convex-shaped interlayer lenses in optical paths between the photoelectric conversion elements and the microlenses, the peak of each convex shape projecting in the direction from the electro-optical element to the microlens.


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