The utility model discloses a low thermal resistance and high density COB light source, which comprises a bracket, a wafer, a solidified glue and a fluorescent glue. The wafer is arranged above the bracket. A double-end point glue head adapted to the wafer is uniformly arranged between the bracket and the wafer, and the thickness of the solidified glue is less than 5 um. The bracket and the wafer are carried out by a solidified crystal The fluorescent glue is fixed on the surface of the wafer through a dispensing device, and the glue in the fluorescent glue is made of a low flexural silica gel with a hardness of 40A. The utility model adopts a double-head dispensing head which is suitable for the size of the wafer to set the solid crystal adhesive between the support and the wafer, thereby improving the production efficiency and quality, and the thickness of the solid crystal adhesive is less than 5 um. Compared with the traditional solid crystal adhesive with the thickness of 10.4 um, the temperature from the wafer surface to the support surface is reduced by 5 degrees Celsius and the glue surface is pushed back. The temperature is reduced by about 10 C, which provides the heat dissipation function of COB. The glue in the fluorescent glue adopts the low refractive silica gel with hardness 40A, which reduces the loss of light and thus realizes high density and high luminous efficiency.
【技术实现步骤摘要】
一种低热阻高密度的COB光源
本技术涉及一种低热阻高密度的COB光源。
技术介绍
在现有技术中,综合电流注入效率、辐射发光量子效率、芯片外部光取出效率等,最终大概只有30-40%的输入电能转化为光能,其余60-70%能量主要以非辐射复合发生的点阵振动的形式转化热能;所以在LED光源应用中,对散热管理及其严格,合理优化散热器的体积,材质,增加鳍片加大空气对流而达到散热管理;针对LED大功率封装,采用热电分离基板、高导热银胶、大尺寸30-50mil晶片封装来降低热阻,但是光效的不足,胶水开裂、金线断开,无法满足使用要求。以上不足,有待改进。
技术实现思路
为了克服现有的技术的不足,本技术提供一种低热阻高密度的COB光源。本技术技术方案如下所述:一种低热阻高密度的COB光源,包括支架、晶片、固晶胶及荧光胶,所述晶片设于所述支架的上方,所述支架与所述晶片之间采用与所述晶片相适应的双头点胶头均匀设有所述固晶胶,所述固晶胶的厚度小于5um,所述支架与所述晶片采用固晶设备进行固晶,所述荧光胶通过点胶设备设于所述晶片的表面,所述荧光胶中的胶水采用硬度40A的低折硅胶。进一步地,所述固晶胶的厚度为3.8um,所述固晶胶为低折透明硅胶。进一步地,所述荧光胶的厚度小于5mm。进一步地,所述双头点胶头的顶部设有135°的倒角。进一步地,所述晶片为正装长方形晶片,所述正装长方形晶片的尺寸规格为10×30mil或17×33mil或22×35mil或23×45mil。进一步地,所述双头点胶头的第一点胶头的尺寸规格为0.65×0.2mm,所述尺寸规格为0.65×0.2mm的所述第一点胶头与所述尺 ...
【技术保护点】
1.一种低热阻高密度的COB光源,其特征在于:包括支架、晶片、固晶胶及荧光胶,所述晶片设于所述支架的上方,所述支架与所述晶片之间采用与所述晶片相适应的双头点胶头均匀设有所述固晶胶,所述固晶胶的厚度小于5um,所述支架与所述晶片采用固晶设备进行固晶,所述荧光胶通过点胶设备设于所述晶片的表面,所述荧光胶中的胶水采用硬度40A的低折硅胶。
【技术特征摘要】
1.一种低热阻高密度的COB光源,其特征在于:包括支架、晶片、固晶胶及荧光胶,所述晶片设于所述支架的上方,所述支架与所述晶片之间采用与所述晶片相适应的双头点胶头均匀设有所述固晶胶,所述固晶胶的厚度小于5um,所述支架与所述晶片采用固晶设备进行固晶,所述荧光胶通过点胶设备设于所述晶片的表面,所述荧光胶中的胶水采用硬度40A的低折硅胶。2.如权利要求1所述的低热阻高密度的COB光源,其特征在于:所述固晶胶的厚度为3.8um,所述固晶胶为低折透明硅胶。3.如权利要求1所述的低热阻高密度的COB光源,其特征在于:所述荧光胶的厚度小于5mm。4.如权利要求1所述的低热阻高密度的COB光源,其特征在于:所述双头点胶头的顶部设有135°的倒角。5.如权利要求1所述的低热阻高密度的COB光源,其特征在于:所述晶片为正装长方形晶片,所述正装长方形晶片的尺寸规格为10×30mil或17×33mil或22×35mil或23×45m...
【专利技术属性】
技术研发人员:刘飞宇,
申请(专利权)人:深圳市立洋光电子股份有限公司,
类型:新型
国别省市:广东,44
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