US 7,531,782 B2
Solid-state image sensor having micro-lenses arranged to collect light of which the incidence angle has been moderated by a transparent film disposed thereon
Hiroshi Sakoh, Kyotanabe (Japan); Masato Kobayashi, Takatsuki (Japan); and Nobukazu Teranishi, Tokyo (Japan)
Assigned to Matsushita Electric Industrial Co., Ltd., Osaka (Japan)
Filed on Nov. 15, 2006, as Appl. No. 11/599,353.
Application 11/599353 is a division of application No. 10/909311, filed on Aug. 03, 2004.
Claims priority of application No. 2003-285555 (JP), filed on Aug. 04, 2003.
Prior Publication US 2007/0057153 A1, Mar. 15, 2007
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 27/00 (2006.01)
U.S. Cl. 250—208.1  [250/239] 22 Claims
OG exemplary drawing
 
1. A solid-state image sensor comprising:
light-receiving elements arranged in a light-receiving area;
micro-lenses corresponding to said light-receiving elements; and
a transparent film on said micro-lenses for moderating incidence angle of oblique light, entering the solid-state image sensor from above the solid-state image sensor, at a periphery of said light-receiving area,
wherein, in a central portion of said light-receiving area, a corresponding one of said micro-lenses is directly above a corresponding one of said light-receiving elements, and in a portion of said light-receiving area that is closer to the periphery of said light-receiving area than a center of said light-receiving area, corresponding ones of said micro-lenses are offset from directly above corresponding ones of said light-receiving elements, said micro-lenses being arranged to collect the light of which the incidence angle has been moderated by said transparent film.