CN105870112A - 一种混合波长紫光led及其制造方法 - Google Patents
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Abstract
本发明公开了一种混合波长紫光LED及其制造方法,包括一基板,所述基板的中心设置有一凹槽,所述凹槽的底壁面上通过固晶胶固定有两颗并排布置的紫光芯片,两颗所述紫光芯片通过键合金丝并联形成回路,固定好两颗所述紫光芯片后,在所述凹槽中填充内胶,所述内胶充满整个凹槽,所述凹槽外封装有一固化后呈半球形的外胶。本发明将中功率的365nm紫光芯片和中功率的405nm紫光芯片共用置于一个封装体中,从而使得两个光源形成混波组合,通过在内胶中添加的荧光粉使得混波更加均匀,最后从外胶形成的凸顶透镜能使混波功率增强激发,至此,它含有的双波长紫外光能更加轻易使UV光疗胶发生高分子胶链反应。
Description
技术领域
本发明涉及LED光源技术领域,更具体地说是一种混合波长紫光LED及其制造方法。
背景技术
目前,在高端美甲光疗领域中,使用较多的是UV汞灯和配套使用的UV光疗胶。UV汞灯发出的紫外光谱是以365nm为主峰的连续波峰,UV光疗胶它一般含有双波长的光引发剂。单一波长的紫光LED不能使UV光疗胶发生高分子胶链反应(美甲光固),而且UV汞灯寿命短,功耗大,运输不便,特别是会对环境造成污染。
发明内容
本发明的目的在于克服现有技术以上缺陷,提供一种寿命长、功耗小、运输便利、节能环保的混合波长紫光LED及其制造方法。
为了达到以上目的,本发明是通过以下技术方案实现的:一种混合波长紫光LED,包括一基板,其特征在于,所述基板的中心设置有一凹槽,所述凹槽的底壁面上通过固晶胶固定有两颗并排布置的紫光芯片,所述固晶胶的高度为每颗所述紫光芯片高度的1/3~1/2,两颗所述紫光芯片通过键合金丝并联形成回路,固定好两颗所述紫光芯片后,在所述凹槽中填充内胶,所述内胶充满整个凹槽,所述凹槽外封装有一固化后呈半球形的外胶。
作为优选,两颗所述紫光芯片中,一颗采用峰值波长为365nm的20mil垂直芯片,另一颗为峰值波长405nm的20mil垂直芯片。
作为优选,固晶胶为由银粉和有机胶搅拌制造的银胶,其中银粉10重量份,有机胶10重量份;内胶为硅胶和白光荧光粉混合物,其中硅胶50重量份,白光荧光粉1重量份,白光荧光粉的颗粒直径为7~15μm;外胶为硅胶。
一种混合波长紫光LED的制造方法,其特征在于,包括以下步骤:
(1)将两颗紫光芯片并排分开布置到基板中心的凹槽中,然后将固晶胶置于固晶机上进行固晶作业,同时固定住两颗紫光芯片,固晶胶的高度为紫光芯片高度的1/3~1/2;
(2)将固定好两颗紫光芯片的基板放入烤箱中进行烘烤,烘烤温度为170℃,时间为120分钟;
(3)将固定好两颗紫光芯片的基板置于焊线机上进行焊线作业,将两颗紫光芯片通过键合金丝并联形成回路;
(4)将硅胶和白光荧光粉按比例硅胶50重量份,白光荧光粉1重量份倒入容器中,搅拌15~30分钟,使其充分混合均匀,制成内胶;
(5)将调配好的内胶置于点胶机上进行点胶作业,内胶点满整个基板的凹槽;
(6)将灌胶后的基板放入烤箱中进行烘烤,烘烤分为两个阶段,第一阶段烘烤温度为100℃,时间为60分钟,使内胶中的反应抑制剂挥发,第二阶段烘烤温度为150℃,时间为120分钟,使内胶固化;
(7)将外胶置于模压机中进行模压作业,形成半球形的凸顶透镜。
有益效果:本发明将中功率的365nm紫光芯片和中功率的405nm紫光芯片共用置于一个封装体中,从而使得两个光源形成混波组合,通过在内胶中添加的荧光粉使得混波更加均匀,最后从外胶形成的凸顶透镜能使混波功率增强激发,至此,它含有的双波长紫外光能更加轻易使UV光疗胶发生高分子胶链反应。
附图说明
图1为本发明的结构示意图;
图2为图1中A-A的结构示意图。
图中:1-基板,2-固晶胶,3-紫光芯片,4-键合金丝,5-内胶,6-外胶。
具体实施方式
为了使本发明的技术手段、创作特征与达成目的易于明白理解,以下结合具体实施例进一步阐述本发明。
实施例:如图1和图2所示,一种混合波长紫光LED,包括一基板1,基板1的中心设置有一凹槽,凹槽的底壁面上通过固晶胶2固定有两颗并排布置的紫光芯片3,固晶胶2的高度为每颗紫光芯片3高度的1/3~1/2,两颗紫光芯片3通过键合金丝4并联形成回路,固定好两颗紫光芯片3后,在凹槽中填充内胶5,内胶5充满整个凹槽,凹槽外封装有一固化后呈半球形的外胶6。
两颗紫光芯片中,一颗采用峰值波长为365nm的20mil垂直芯片,另一颗为峰值波长405nm的20mil垂直芯片。
固晶胶2为由银粉和有机胶搅拌制造的银胶,其中银粉10重量份,有机胶10重量份;内胶5为硅胶和白光荧光粉混合物,其中硅胶50重量份,白光荧光粉1重量份,白光荧光粉的颗粒直径为7~15μm;外胶6为硅胶。
一种混合波长紫光LED的制造方法,包括以下步骤:
(1)将两颗紫光芯片并排分开布置到基板中心的凹槽中,然后将固晶胶置于固晶机上进行固晶作业,同时固定住两颗紫光芯片,固晶胶的高度为紫光芯片高度的1/3~1/2;
(2)将固定好两颗紫光芯片的基板放入烤箱中进行烘烤,烘烤温度为170℃,时间为120分钟;
(3)将固定好两颗紫光芯片的基板置于焊线机上进行焊线作业,将两颗紫光芯片通过键合金丝并联形成回路;
(4)将硅胶和白光荧光粉按比例硅胶50重量份,白光荧光粉1重量份倒入容器中,搅拌15~30分钟,使其充分混合均匀,制成内胶;
(5)将调配好的内胶置于点胶机上进行点胶作业,内胶点满整个基板的凹槽;
(6)将灌胶后的基板放入烤箱中进行烘烤,烘烤分为两个阶段,第一阶段烘烤温度为100℃,时间为60分钟,使内胶中的反应抑制剂挥发,第二阶段烘烤温度为150℃,时间为120分钟,使内胶固化;
(7)将外胶置于模压机中进行模压作业,形成半球形的凸顶透镜。
使用:本发明将中功率的365nm紫光芯片和中功率的405nm紫光芯片共用置于一个封装体中,从而使得两个光源形成混波组合,通过在内胶中添加的荧光粉使得混波更加均匀,最后从外胶形成的凸顶透镜能使混波功率增强激发,至此,它含有的双波长紫外光能更加轻易使UV光疗胶发生高分子胶链反应。
Claims (4)
1.一种混合波长紫光LED,包括一基板,其特征在于,所述基板的中心设置有一凹槽,所述凹槽的底壁面上通过固晶胶固定有两颗并排布置的紫光芯片,所述固晶胶的高度为每颗所述紫光芯片高度的1/3~1/2,两颗所述紫光芯片通过键合金丝并联形成回路,固定好两颗所述紫光芯片后,在所述凹槽中填充内胶,所述内胶充满整个凹槽,所述凹槽外封装有一固化后呈半球形的外胶。
2.根据权利要求1所述混合波长紫光LED的制造方法,其特征在于,两颗所述紫光芯片中,一颗采用峰值波长为365nm的20mil垂直芯片,另一颗为峰值波长405nm的20mil垂直芯片。
3.根据权利要求1或2所述混合波长紫光LED的制造方法,其特征在于,固晶胶为由银粉和有机胶搅拌制造的银胶,其中银粉10重量份,有机胶10重量份;内胶为硅胶和白光荧光粉混合物,其中硅胶50重量份,白光荧光粉1重量份,白光荧光粉的颗粒直径为7~15μm;外胶为硅胶。
4.根据权利要求1至3任意一项所述混合波长紫光LED的制造方法,其特征在于,包括以下步骤:
(1)将两颗紫光芯片并排分开布置到基板中心的凹槽中,然后将固晶胶置于固晶机上进行固晶作业,同时固定住两颗紫光芯片,固晶胶的高度为紫光芯片高度的1/3~1/2;
(2)将固定好两颗紫光芯片的基板放入烤箱中进行烘烤,烘烤温度为170℃,时间为120分钟;
(3)将固定好两颗紫光芯片的基板置于焊线机上进行焊线作业,将两颗紫光芯片通过键合金丝并联形成回路;
(4)将硅胶和白光荧光粉按比例硅胶50重量份,白光荧光粉1重量份倒入容器中,搅拌15~30分钟,使其充分混合均匀,制成内胶;
(5)将调配好的内胶置于点胶机上进行点胶作业,内胶点满整个基板的凹槽;
(6)将灌胶后的基板放入烤箱中进行烘烤,烘烤分为两个阶段,第一阶段烘烤温度为100℃,时间为60分钟,使内胶中的反应抑制剂挥发,第二阶段烘烤温度为150℃,时间为120分钟,使内胶固化;
(7)将外胶置于模压机中进行模压作业,形成半球形的凸顶透镜。
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Cited By (9)
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CN106571419B (zh) * | 2016-11-07 | 2019-04-30 | 深圳市源磊科技有限公司 | 一种闪光灯的制作方法 |
CN106997879A (zh) * | 2017-03-21 | 2017-08-01 | 江苏稳润光电有限公司 | 一种可调紫外光led及制作方法 |
CN107195760A (zh) * | 2017-04-26 | 2017-09-22 | 安徽欧瑞特照明有限公司 | 一种led封装工艺 |
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CN108155106A (zh) * | 2017-12-22 | 2018-06-12 | 珠海市大鹏电子科技有限公司 | 一种长爬电光电耦合器的制备工艺 |
CN109411587A (zh) * | 2018-12-10 | 2019-03-01 | 邱凡 | 一种含硅胶透镜的紫光led生产方法及其紫光led |
CN109411587B (zh) * | 2018-12-10 | 2020-11-27 | 浙江单色电子科技有限公司 | 一种含硅胶透镜的紫光led生产方法及其紫光led |
CN109856860A (zh) * | 2019-03-29 | 2019-06-07 | 深圳创维-Rgb电子有限公司 | 一种液晶显示模组及显示装置 |
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CN110808244A (zh) * | 2019-10-29 | 2020-02-18 | 长春希龙显示技术有限公司 | 基于moding技术的LED显示单元表面封装方法 |
CN111883631A (zh) * | 2020-08-21 | 2020-11-03 | 连云港光鼎电子有限公司 | 一种uvc-led发光器件的制备方法 |
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