Composite substrate for led light emitting element, method of production of same, and led light emitting element
作者： Hideo Tsukamoto , Hideki Hirotsuru , Yosuke Ishihara
DOI:
关键词: Yttrium 、 Light-emitting diode 、 Oxide 、 Nitride 、 Silicon carbide 、 Silicon nitride 、 Diamond 、 Composite material 、 Substrate (electronics) 、 Materials science 、 Metallurgy
摘要: A substrate for an LED light emitting element having a small difference of linear thermal expansion coefficient with the III-V semiconductor crystal constituting LED, excellent conductivity, and suitable high output LEDs. porous body comprises one or more materials selected from silicon carbide, aluminum nitride, diamond, graphite, yttrium oxide, magnesium oxide has porosity that is 10 to 50 volume % three-point bending strength MPa more. The infiltrated, by means liquid metal forging, alloy pure at infiltration pressure 30 more, cut and/or ground thickness 0.05 0.5 mm surface roughness (Ra) 0.01 μm, then formed layer comprising elements Ni, Co, Pd, Cu, Ag, Au, Pt Sn on its 15 so as thereby produce composite element.
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