CN106981483A - 一种线性led光源的封装结构 - Google Patents
一种线性led光源的封装结构 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/647—Heat extraction or cooling elements the elements conducting electric current to or from the semiconductor body
Abstract
本发明公开一种线性LED光源封装结构,包括发光组件、连接端子、导电镀层和荧光胶封层;发光组件包括一个或多个沿直线排列的倒装LED芯片;连接端子设置在发光组件的两端,且连接端子通过导电镀层与发光组件电连接;导电镀层电连接相邻倒装LED芯片的相邻电极;荧光胶封层包覆在所述发光组件和连接端子上。本发明所述一种线性LED光源封装结构使用荧光胶封层固定发光组件和连接端子,省去了基板,可随意弯曲;使用导电镀层实现发光组件和连接端子的电连接,取代了金线键合LED芯片的电连接方式,增强了产品的稳定性。
Description
技术领域
本发明涉及一种线性LED光源,特别涉及一种线性LED光源的封装结构。
背景技术
市面上常见的线性LED光源中,多个LED芯片设置在基板上并用金线将多个LED芯片和连接端子键合,并涂覆荧光胶使荧光胶包覆在基板和LED芯片上,再将两端的连接端子分别接入电源的两端。采用此种封装结构的线性LED光源中,采用金线键合LED芯片,质量风险高;基板和包覆LED芯片的荧光胶导热性均较差,导致LED芯片产生的热量无法散去;同时,难以保证荧光胶均匀地涂覆在基板和LED芯片上,降低了线性LED光源的光色均一性。
发明内容
为解决上述技术问题,本发明采用的技术方案为:
一种线性LED光源封装结构,包括:
发光组件,包括一个或多个沿直线排列的倒装LED芯片;
连接端子,发光组件的两端分别包括一连接端子;
导电镀层,导电镀层电连接相邻两个倒装LED芯片的相邻电极,连接端子通过导电镀层与发光组件两端的倒装LED芯片的相邻电极电连接;
荧光胶封层,包覆在所述发光组件和连接端子上。
进一步的,发光组件中相邻倒装LED芯片的相邻电极相反,倒装LED芯片采用串联的连接方式。
进一步的,所述导电镀层完全覆盖倒装LED芯片的正负极。
进一步的,所述导电镀层的宽度与荧光胶封层的宽度相等。
本发明所述一种线性LED光源的封装结构的封装步骤为:
A、使用排列机将倒装LED芯片阵列排列,使每列或者每行倒装LED芯片的前后两端分别排列有一连接端子;
B、采用芯片级封装技术在步骤A所获得的产品上覆盖荧光胶,并将荧光胶烘干;
C、使用真空镀膜设备在连接端子和倒装LED芯片的电极镀上导电镀层,使相邻倒装LED芯片的相邻电极电连接,连接端子与其相邻的倒装LED芯片电连接;
D、使用划片机以列或行为单位切割C中获得的产品即为本发明所述线性LED光源。
本发明所述一种线性LED光源的封装结构中采用倒装LED芯片,通过导电镀层电连接相邻倒装LED芯片的相邻电极和连接端子,再用荧光胶包覆发光组件和连接端子,
本发明所述一种线性LED光源的封装结构有如下优点:
(1)省去了基板,提高了本发明所述线性LED光源的可塑性,可随意弯曲,可用于制成不同形状的线性LED光源;
(2)导电镀层覆盖在倒装LED芯片的电极上,增大了倒装LED芯片的散热面积;
(3)倒装芯片LED之间通过导电镀层电连接,取代了金线键合LED芯片的电连接方式,且省去了基板,减少了生产成本;
(4)采用倒装LED芯片,线性LED光源的稳定性更强;
(5)本发明所述的线性LED光源使用芯片级封装技术使步骤B获得的产品上覆盖荧光胶,并且采用划片机切割步骤C中获得的产品,保证线性LED光源上荧光胶的浓度一致,划片机可以精准的控制获得的线性LED光源的尺寸,使本发明所述线性LED光源的光色一致性更佳;
(6)本发明所述线性LED光源可大批量进行生产,更适用于工业生产。
附图说明
图1为本发明所述一种线性LED光源的封装结构的示意图;
图2为本发明所述一种线性LED光源的封装结构的立体图。
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
具体实施方式
应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
参照图1-2,提出本发明的的一实施例,所述线性LED光源的封装结构包括发光组件1、导电镀层2、连接端子3和荧光胶封层4。
所述发光组件1由多个倒装LED芯片11沿直线排列而成,且相邻的倒装LED芯片11相邻的电极相反,相邻的倒装LED芯片11相邻电极通过导电镀层2电连接,即倒装LED芯片11的正极111与其相邻的倒装LED芯片11的负极112通过导电镀层2电连接。
发光组件1的两端分别设有一连接端子3,连接端子3与其相邻的倒装LED芯片11的相邻电极通过导电镀层2电连接,发光组件1的两端的连接端子3用于接入电源的两端。
荧光胶封层4涂覆在发光组件1和连接端子3上,使发光组件1和连接端子3固定在荧光胶封层4上,省去基板,节约了线性LED光源的生产物料,降低了成本;提高了本发明所述线性LED光源的可塑性,可随意弯曲。
导电镀层2涂覆在相邻倒装LED芯片11相邻的电极上,导电镀层2实现了发光组件1和连接端子3之间的电连接,连接端子3与其相邻的倒装LED芯片的相邻电极通过导电镀层2电连接,避免使用金线键合发光组件1和连接端子3,提高了线性LED光源质量的稳定性。
导电镀层2完全覆盖倒装LED芯片11的两极,导电镀层2增加了倒装LED芯片11的散热面积,有利于增加倒装LED芯片11的寿命;当导电镀层2的宽度与荧光胶封层4的宽度相同时,导电镀层2可用于反射倒装LED芯片11向下发出的光,有利于增加线性LED光源的光强。
本发明所述一种线性LED光源的封装结构的封装步骤为:
A、使用排列机将倒装LED芯片阵列排列,使每列相邻的两个倒装LED芯片的相邻电极不同,且每列倒装LED芯片的前后两端分别排列有一连接端子;
B、采用芯片级封装技术在步骤A中获得的产品上覆盖荧光胶,并烘干荧光胶;
C、使用真空镀膜设备在连接端子和倒装LED芯片的电极镀上导电镀层,使相邻倒装LED芯片的相邻电极电连接,连接端子与其相邻的倒装LED芯片电连接;
D、使用划片机以列为单位切割C中获得的产品即为本发明所述线性LED光源。
其中步骤B中采用的芯片级封装技术包括但不限于涂覆、喷涂、蒸镀和膜压。
本发明所述一种线性LED光源的封装结构的封装步骤适用于工业大批量生产,采用芯片级封装技术涂覆荧光胶,并用划片机切割步骤C中获得的产品,保证荧光胶的浓度一致,划片机可以精准的控制获得的线性LED光源的尺寸,提高了线性LED光源的光色一致性,照明效果更佳。
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (4)
1.一种线性LED光源封装结构,其特征在于,包括:
发光组件,包括一个或多个沿直线排列的倒装LED芯片;
连接端子,发光组件的两端分别包括一连接端子;
导电镀层,导电镀层电连接相邻倒装LED芯片的相邻电极,连接端子通过导电镀层与发光组件两端的倒装LED芯片电连接;
荧光胶封层,包覆在所述发光组件和连接端子上。
2.根据权利要求1所述的一种线性LED光源封装结构,其特征在于,发光组件中相邻倒装LED芯片的相邻电极相反,倒装LED芯片采用串联的连接方式。
3.根据权利要求1所述的一种线性LED光源封装结构,其特征在于,所述导电镀层完全覆盖倒装LED芯片的正负极。
4.根据权利要求3所述的一种线性LED光源封装结构,其特征在于,所述导电镀层的宽度与荧光胶封层的宽度相等。
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Citations (4)
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US20100096746A1 (en) * | 2008-10-21 | 2010-04-22 | Advanced Optoelectronic Technology Inc. | Package module structure of compound semiconductor devices and fabricating method thereof |
WO2014026468A1 (zh) * | 2012-08-15 | 2014-02-20 | 晶元光电股份有限公司 | 发光元件 |
TW201621210A (zh) * | 2016-02-26 | 2016-06-16 | Liquidleds Lighting Corp | 發光二極體光源及燈具 |
CN206711891U (zh) * | 2017-05-12 | 2017-12-05 | 中山市立体光电科技有限公司 | 一种线性led光源的封装结构 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20100096746A1 (en) * | 2008-10-21 | 2010-04-22 | Advanced Optoelectronic Technology Inc. | Package module structure of compound semiconductor devices and fabricating method thereof |
WO2014026468A1 (zh) * | 2012-08-15 | 2014-02-20 | 晶元光电股份有限公司 | 发光元件 |
TW201621210A (zh) * | 2016-02-26 | 2016-06-16 | Liquidleds Lighting Corp | 發光二極體光源及燈具 |
CN206711891U (zh) * | 2017-05-12 | 2017-12-05 | 中山市立体光电科技有限公司 | 一种线性led光源的封装结构 |
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