CN201408760Y - 一种多芯片大角度发光的球形封装的led - Google Patents

一种多芯片大角度发光的球形封装的led Download PDF

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Publication number
CN201408760Y
CN201408760Y CN2009200894013U CN200920089401U CN201408760Y CN 201408760 Y CN201408760 Y CN 201408760Y CN 2009200894013 U CN2009200894013 U CN 2009200894013U CN 200920089401 U CN200920089401 U CN 200920089401U CN 201408760 Y CN201408760 Y CN 201408760Y
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Prior art keywords
led
chip
radiating block
angle
light emitting
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Expired - Fee Related
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CN2009200894013U
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万承钢
吴赟
王献军
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Honor Trust Technology Co Ltd
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Honor Trust Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item

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Abstract

本实用新型涉及多芯片大角度发光的球形封装的LED,可有效解决LED散热效果差,光照角度小,亮度低的问题,其解决的技术方案是,包括LED芯片和芯片基座及透明塑封料体,LED发光芯片由银胶固定在芯片基座上,散热块上涂有导热绝缘胶,LED发光芯片和芯片基座与散热块由导热绝缘胶连接在一起,LED发光芯片与散热块的形状相吻合,LED发光芯片与正负极引脚由金线连接,外部由球形的透明塑封封装为一体,本实用新型结构新颖独特,散热效果好,使用寿命长,节能,环保,有显著的经济和社会效益。

Description

一种多芯片大角度发光的球形封装的LED
一、技术领域
本实用新型涉及发光器件,特别是一种多芯片大角度发光的球形封装的LED。
二、背景技术
LED(半导体发光二极管)在现在的生活当中应用很多,而且在诸多领域都将会被广泛利用。因LED工作光效高,寿命长等优点,随着光照度的不断提高,LED被广泛应用于手电,矿灯,路灯,射灯等领域,不但在公共照明中等到应用,而且在家庭,航空,矿井,道路中得到应用,说明LED的作用及未来前景是可观的。
LED是通过电子复合而发光,当在小电流的情况下,产生热量很小,但在大功率的LED中,特别是在照明领域的应用,需要较大的电流,会产生大量的热量,使工作温度升高。而影响LED的寿命的主要因素就是温度(PN结的工作温度),PN结工作温度一般不要高于120°,最好在100°左右,PN结温度每上升10°,光通量就会衰减1%,LED发光的主波长就会漂移1nm,寿命也随着降低,而且温度也会对塑封料加快老化,降低塑封料的光透度,都有着重要影响,所以工作环境温度对于LED很重要。
在传统的LED封装中主要是圆头形,圆帽形,扁形封装,发光主要是通过头部利用凸透镜来聚光发光的,有的是在侧面,所以只有在正对着时才会觉得比较亮,这是因为一般LED的发光角度在20-60°之间。
由以上可以得出目前LED的缺陷:LED的工作环境温度,也就是散热问题还没得到良好的解决;还有就是目前LED发光角度小,照射亮度低也是LED还没够被广泛应用的原因。
三、实用新型内容
针对上述情况,为克服现有LED的技术缺陷,本实用新型之目的就是提供一种多芯片大角度发光的球形封装的LED,可有效解决LED散热效果差,光照角度小,亮度低的问题,其解决的技术方案是,包括散热块一起的一种封装结构(对散热块进行半封),散热块直接装在外设的散热装置散热片上,降低环境工作温度,来给LED创造一个良好温度的工作环境,为了使LED能够在大角度,多角度内发光,采用多芯片、芯片多角度的透明体球形封装,这样的封装结构可以在旋转体215°角度内发出光,据此,本实用新型的结构是,包括LED芯片和芯片基座及透明塑封,LED发光芯片由银胶固定在芯片基座上,散热块上涂有导热绝缘胶,LED发光芯片和芯片基座与散热块由导热绝缘胶连接在一起,LED发光芯片与散热块的形状相吻合,LED发光芯片与正负极引脚由金线连接,外部由球形的透明塑封封装为一体,本实用新型结构新颖独特,散热效果好,使用寿命长,节能,环保,有显著的经济和社会效益。
四、附图说明
图1为本实用新型的芯片部分结构图。
图2为本实用新型的结构图。
五、具体实施方式
以下结合附图对本实用新型的具体实施方式作详细说明。
由图1、2所示,本实用新型包括LED芯片和芯片基座及透明塑封,LED发光芯片1由银胶3固定在芯片基座4上,散热块6上涂有导热绝缘胶5,LED发光芯片1和芯片基座4与散热块6由导热绝缘胶5连接在一起,LED发光芯片与散热块6的形状相吻合,LED发光芯片1与正负极引脚7由金线2连接,外部由球形的透明塑封8封装为一体。
为了保证使用效果,所说的LED发光芯片1其发光角度为小于或等于215度,即在旋转体215度角内发光。
本实用新型在生产时,具体是:LED发光芯片1通过银胶3固定在芯片基座4上,经过加热银胶3固后,使LED芯片1完全被固定在芯片基座4上面,在散热块6上涂上导热绝缘胶5,通过对两边的LED芯片基座4下压的方式,再通过导热绝缘胶5把LED芯片1和芯片基座4与散热块6连接起来,完成LED芯片1与散热块6的形状相吻合。等完全固化稳定后,再通过金线2把LED芯片1与正负极引脚7连接起来,最后再用透明塑封8进行注塑完成球形封装,再后固化后本实用新型多芯片大角度发光球形封装的LED完成。
由上述结构可以看出,本实用新型的积极效果在于:它能够在215°角度发光,特别适用于在大功率的LED封装照明中,光源照射范围广,亮度强,用途广,大大开拓了LED在照明中的应用范围,其应用经济和社会效益显著。

Claims (2)

1、一种多芯片大角度发光的球形封装的LED,包括LED芯片和芯片基座及透明塑封,其特征在于,LED发光芯片(1)由银胶(3)固定在芯片基座(4)上,散热块(6)上涂有导热绝缘胶(5),LED发光芯片(1)和芯片基座(4)与散热块(6)由导热绝缘胶(5)连接在一起,LED发光芯片与散热块(6)的形状相吻合,LED发光芯片(1)与正负极引脚(7)由金线(2)连接,外部由球形的透明塑封(8)封装为一体。
2、根据权利要求1所述的多芯片大角度发光的球形封装的LED,其特征在于,所说的LED发光芯片(1)其发光角度为小于或等于215度,在旋转体215度角内发光。
CN2009200894013U 2009-04-03 2009-04-03 一种多芯片大角度发光的球形封装的led Expired - Fee Related CN201408760Y (zh)

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