Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Reexamination Certificate
2005-08-16
2010-11-02
Jackson, Jr., Jerome (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
C257S629000, C257S701000, C257SE33072, C438S770000
Reexamination Certificate
active
07825422
ABSTRACT:
A ceramic substrate for mounting a light emitting element. The ceramic substrate has a placement surface for placing a light emitting element having an electrode; and an electrode electrically-connected with the electrode of the light emitting element, wherein the ceramic substrate comprises a substrate body consisting of a nitride ceramics; and a coat layer coating at least a part of a surface of the substrate body and consisting of a ceramics different from the nitride ceramics forming the substrate body; and the coat layer has an optical reflectance of 50% or more for any light having a wavelength of from 300 to 800 nm, which can increase a luminance of the light emitting element by reflecting the light emitted from the element efficiently with certainty, and which has a high heat radiation property; and a manufacturing method therefor.
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Maeda Masakatsu
Yamamoto Yasuyuki
Jackson, Jr. Jerome
Ladas & Parry LLP
Page Dale
Tokuyama Corporation
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