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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
元
材料费:77201元
人工费:86544元
设计费:1760元
质检费:2706元
插件LED主要是用环氧树脂(Epoxy),特点是:价格便宜,气密性好,粘接力强,硬度高。但容易变黄,不耐温,贴片LED主要是光学级硅胶(Silicone),特点是:耐高温,可过回流焊,不易黄变,性能稳定。但透水性强,硬度较低,价格高.
我是做封装材料的,只知道原料需要芯片、支架、固晶胶(银胶)、金线、荧光粉、混粉胶、填充胶。
如果*的还是用硅胶比较好,硅胶的耐老化,抗氧化及耐紫外线的强度,要LED的核心发光部分是由p型和n型半导体构成的pn结管芯,当注入pn结的少数载流子与多数载流子复合时,就会发出可见光,紫外光或近红外光
LED封装材料主要有环氧树脂,聚碳*脂,聚*丙**甲脂,玻璃,有机硅材料等高透明材料。其中聚碳*脂,聚*丙**甲脂,玻璃等用作外层透镜材料;环氧树脂,改性环氧树脂,有机硅材料等,主要作为封装材料,亦可作为透镜材料。而高性能有机硅材料将成为高端LED封装材料的封装方向之一。