Semiconductor device and electronic apparatus

Details Semiconductor device and electronic apparatus Semiconductor device and electronic apparatus

2007-07-17

2007-07-17

Lee, John R. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S239000, C257S432000, C257S433000

Reexamination Certificate

active

11142400

ABSTRACT:
The semiconductor device has a lead frame, a photo-detection chip and a control IC chip mounted on the lead frame, a first sealing portion that seals the photo-detection chip and the control IC chip, and a second sealing portion that covers the first sealing portion in a state of partially exposing the lens portion. The second sealing portion has a raised portion formed along the lens portion on the basal end side of the lens portion, which makes it possible to obtain a sufficient shielding effect against noise and therefore to improve tolerance to noise.

REFERENCES:
patent: 6512255 (2003-01-01), Aoki et al.
patent: 6855886 (2005-02-01), Kawamura et al.
patent: 7009267 (2006-03-01), Honboh
patent: 7019375 (2006-03-01), Harazono
patent: 7138664 (2006-11-01), Okazaki et al.
patent: 2005/0094397 (2005-05-01), Yamada et al.
patent: 2006/0060882 (2006-03-01), Ohe et al.
patent: 09-084162 (1997-03-01), None

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