| US 7,491,976 B2 | ||
| Light-emitting element array and image forming apparatus | ||
| Tetsuya Takeuchi, Yokohama (Japan); Makoto Koto, San Jose (Japan); Kenji Yamagata, Sagamihara (Japan); Yoshinobu Sekiguchi, Machida (Japan); and Takao Yonehara, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jul. 25, 2007, as Appl. No. 11/782,935. | ||
| Claims priority of application No. 2006-219791 (JP), filed on Aug. 11, 2006. | ||
| Prior Publication US 2007/0262333 A1, Nov. 15, 2007 | ||
| Int. Cl. H01L 33/00 (2006.01) | ||
| U.S. Cl. 257—93 [257/88; 257/E33.068] | 26 Claims |
| 1. A light source comprising:
a substrate;
a plurality of light-emitting element groups on the substrate, each of the groups including a plurality of light-emitting
elements, a first semiconductor member in common, and a plurality of second semiconductor members separated between the plurality
of light-emitting elements;
a metal reflection layer, continuous over the plurality of the light-emitting element groups, provided between the substrate
and the first semiconductor member; and
a resistive layer, provided between the first semiconductor member and the metal reflection layer, for electrical isolation
between the light-emitting groups.
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