Solid-state semiconductor light emitting device

Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame

Reexamination Certificate

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Details

C257S712000, C257SE33062, C362S294000

Reexamination Certificate

active

07119422

ABSTRACT:
A solid-state semiconductor light emitting device is disclosed. A heat sink that comprises a receiving cup for receiving a chip is provided. A leadframe that comprises a connection base is mounted above the heat sink, wherein the chip is connected to the leadframe via a metal wire and a resin or silicone is applied to cover all of them so as to form the a light emitting device that emits light. In the leadframe, two holders that include two top sides on their two top portions are opposite to one another, and a holder having holes is mounted between these two top sides. The holder having the holes is connected to one of these two opposite holders. A plastic material is applied to mold the three holders into the connection base for receiving the receiving cup of the heat sink. As a result, the heat sink provides with good heat-dissipating efficacy and each holder of the leadframe also provides with heat-dissipating efficacy and enhances connection stability as well.

REFERENCES:
patent: 6517218 (2003-02-01), Hochstein
patent: 6621169 (2003-09-01), Kikuma et al.
patent: 2002/0027295 (2002-03-01), Kikuma et al.
patent: 2002/0050376 (2002-05-01), Hogerl
patent: 2002151644 (2002-05-01), None

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