Optical coupling device including lead frame having a...

Details Optical coupling device including lead frame having a... Optical coupling device including lead frame having a...

2007-06-12

2007-06-12

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Signal isolator

C250S239000, C257S081000

Reexamination Certificate

active

10879072

ABSTRACT:
An optical semiconductor device comprises a lead frame having, on a main surface thereof, a light-emitting element mount portion, and a light-receiving element mount portion formed to be convex. The optical semiconductor device comprises a light-emitting element mounted on the light-emitting element mount portion, and a light-receiving element mounted on the light-receiving element mount portion such that a light-receiving area faces the light-emitting element.

REFERENCES:
patent: 4712017 (1987-12-01), Kamasaki
patent: 4863806 (1989-09-01), Merrick et al.
patent: 4980568 (1990-12-01), Merrick et al.
patent: 5631192 (1997-05-01), Heppler et al.
patent: 6031251 (2000-02-01), Gempe et al.
patent: 6885016 (2005-04-01), Worley et al.
patent: 2003/0201462 (2003-10-01), Pommer et al.

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