Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Reexamination Certificate
2003-06-10
2008-09-30
Louie, Wai-Sing (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
C257S079000, C257S099000, C257SE33072
Reexamination Certificate
active
07429757
ABSTRACT:
A semiconductor light emitting device comprises a metallic support plate1; a light-reflective reflector3mounted on the support plate1and formed with a hole3a; a semiconductor light emitting element2mounted on the support plate1within the hole3aof the reflector3, and a plastic encapsulant6for sealing an outer periphery of the reflector3and an upper surface1cof the support plate1. As the reflector3is electrically connected to a wiring conductor5or a lead wire8extends through a notch3kformed in the reflector3to electrically connect the semiconductor light emitting element2and wiring conductor5, wiring span of the lead wire8can be shortened to prevent deformation of the lead wire8. Simultaneously, diameter of the reflective surface3cin the reflector3is reduced and height of the reflector3is increased to improve directivity and axial brightness of light from the semiconductor light emitting device. Also, formation of the hole3aeffectively prevents further thermal degradation of heat-resistible plastic encapsulant6or other resin components.
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Kobayashi Nobuo
Ogata Toshio
Osawa Hideyuki
Oyama Toshihiko
Bachman & LaPointe P.C.
Louie Wai-Sing
Sanken Electric Co. Ltd.
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