Semiconductor device which prevents light from entering therein

Details Semiconductor device which prevents light from entering therein Semiconductor device which prevents light from entering therein

2008-05-06

2008-05-06

Nguyen, Cuong (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

Insulating material

C257S659000, C257S660000, C257S779000

Reexamination Certificate

active

07368815

ABSTRACT:
A CSP type semiconductor device protects a circuit from the influences exerted by an external light on a circuit. In the CSP type semiconductor device, a light-shielding material, such as a silicone-based resin, an epoxy-based resin, or a metal, is deposited onto a side surface or a rear surface of a semiconductor chip where no circuit is formed.

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patent: 6952050 (2005-10-01), Kwon et al.
patent: 2001/0009302 (2001-07-01), Murayama et al.
patent: 2001/0026007 (2001-10-01), Kagitani
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patent: 2001144213 (2001-05-01), None
patent: 2002033413 (2002-01-01), None
patent: 2002093945 (2002-03-01), None

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