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    • 4. 发明公开
    • LED WITH HIGH THERMAL CONDUCTIVITY PARTICLES IN PHOSPHOR CONVERSION LAYER AND THE METHOD OF FABRICATING THE SAME
    • 具有高导热性的在荧光体中转换层和方法颗粒LED及其制造
    • EP2984686A1
    • 2016-02-17
    • EP14718771.0
    • 2014-04-02
    • Koninklijke Philips N.V.
    • BASIN, GrigoriyFOUKSMAN, Mikhail
    • H01L33/50H01L33/64H01L25/075
    • In one embodiment, a solid cylindrical tablet is pre-formed for a reflective cup containing an LED die, such as a blue LED die. The tablet comprises uniformly-mixed phosphor particles and transparent/translucent particles of a high TC material, such as quartz, in a hardened silicone binder, where the index of refraction of the high TC material is matched to that of the silicone to minimize internal reflection. Tablets can be made virtually identical in composition and size. The bulk of the tablet will be the high TC material. After the tablet is placed in the cup, the LED module is heated, preferably in a vacuum, to melt the silicone so that the mixture flows around the LED die and fills the voids to encapsulate the LED die. The silicone is then cooled to harden.
    • 在一个实施方式中,实心圆柱形片剂预先形成为包含在所述LED,彩色反射杯:诸如蓝色LED。 该片剂包含均匀混合磷颗粒和高TC材料的透明/半透明颗粒,颜色:例如石英,在硬化硅氧烷粘合剂,其中以做了硅酮的以最小化内部反射的高TC材料的折射率被匹配 , 片剂可以由在组成和大小几乎是相同的。 该片剂的体积将是高TC材料。 片剂在杯中放置之后,LED模块被加热时,优选在真空中,以熔化硅所以做了混合物在LED周围流动,填充空隙封装LED这一点。 然后将硅树脂被冷却以硬化。