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:
Jun. 16, 2009
Filed:
Oct. 19, 2006
Toshihiro Kuriyama, Shiga, JP;
Atsushi Tomozawa, Osaka, JP;
Toshihiro Kuriyama, Shiga, JP;
Atsushi Tomozawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A plurality of light receiving elements are arranged in a matrix with uniform space therebetween in a light receiving region defined on a semiconductor substrate. A plurality of read-out electrodes are formed on the semiconductor substrate in an arrangement corresponding to the light receiving elements to read charges generated by the light receiving elements, a light shield film having openings positioned above the light receiving elements is formed to cover the read-out electrodes, first optical waveguides are formed in the openings above the light receiving elements and second optical waveguides are formed on the light shield film. The second optical waveguides are in the form of dots, stripes or a grid when viewed in plan.