CN104576908A - 一种led封装基板 - Google Patents
一种led封装基板 Download PDFInfo
- Publication number
- CN104576908A CN104576908A CN201410809813.5A CN201410809813A CN104576908A CN 104576908 A CN104576908 A CN 104576908A CN 201410809813 A CN201410809813 A CN 201410809813A CN 104576908 A CN104576908 A CN 104576908A
- Authority
- CN
- China
- Prior art keywords
- package substrate
- led package
- led
- metal system
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 230000004888 barrier function Effects 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000011256 inorganic filler Substances 0.000 claims description 3
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 description 5
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 241001311547 Patina Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/641—Heat extraction or cooling elements characterized by the materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
本发明公开了一种LED封装基板包括导体层,绝缘层和金属系基板。其中,绝缘层一级热沉在金属系基板上,导体层二级热沉在绝缘层上。本发明的硬质金属系封装基板具有高散热性,支持高功率LED的封装。
Description
技术领域
本发明涉及一种LED封装基板,属于LED发光组件封装技术领域。
背景技术
长久以来显示应用一直是LED发光组件主要诉求,并不要求 LED 高散热性,因此LED 大多直接封装于传统树脂系基板,然而 2000 年以后随着 LED 高辉度化与高效率化发展,尤其是蓝光 LED组件的发光效率获得大幅改善,液晶、家电、汽车等业者也开始积极检讨 LED 的适用性。在此同时数字家电与平面显示器急速普及化,加上 LED 单体成本持续下降,使得 LED 的应用范围,以及有意愿采用 LED 的产业范围不断扩大,其中又以液晶面板厂商面临欧盟颁布的危害性物质限制指导规范,因此陆续提出未来必需将水银系冷阴极灯管全面无水银化的发展方针,其结果造成高功率 LED 的需求更加急迫,然后高功率 LED 封装后的商品,使用时散热对策成为非常棘手问题。
发明内容
为了解决现有技术的缺陷,本发明提供一种LED封装基板,适用于高功率的LED发光组件。
为达到上述目的,本发明采用的技术方案如下:
一种LED封装基板,包括导体层,绝缘层和金属系基板,所述绝缘层一级热沉在金属系基板上,所述导体层二级热沉在绝缘层上。
前述的半导体层选用铜箔或铝箔。
前述的绝缘层使用充填高热传导性无机填充物的环氧树脂。
前述的金属系基板选用铝或铜。
前述的绝缘层的厚度为1.5mm。
前述的金属系基板的厚度为5mm。
本发明的硬质金属系封装基板具有高散热性,支持高功率 LED 的封装。
附图说明
图1为本发明的LED封装基板的结构示意图。
具体实施方式
现结合附图和具体实施方式对本发明作进一步详细说明。
一般树脂基板的散热极限只支持 0.5W 以下的 LED,超过 0.5W 以上的LED 封装大多改用金属系与陶瓷系高散热基板,主要原因是基板的散热性对 LED 的寿命与性能有直接影响,因此封装基板成为设计高辉度 LED 商品应用时非常重要的组件。
如图1所示,本发明的LED封装基板包括导体层1,绝缘层2和金属系基板3三层结构。其中,绝缘层2一级热沉在金属系基板3上,导体层1二级热沉在绝缘层2上。
优选的,半导体层1选用铜箔或铝箔等材料。绝缘层2大多使用充填高热传导性无机填充物(Filler)的环氧树脂,使用高热传导性绝缘层封装基板,可以大幅降低LED 芯片的温度。金属系基板3选用铝或铜。铝质基板是应用铝的高热传导性与轻量化特性制成高密度封装基板,目前已经应用在冷气空调的转换器(Inverter)、通讯设备的电源基板等领域,铝质基板同样适用于高功率 LED 的封装。
本发明中,一级热沉厚度约1.5mm的环氧树脂在金属系基板3上,金属系基板3的厚度在5mm左右。金属系基板3可以保障电的互连,也是与第二级热沉的连接界面。在没有第二级导体层的热沉的情况下,LED也能在室温下工作,但是金属系基板很容易达到70 ℃。多级次的热沉虽然增加了一点热阻,但使散热面大大扩展了(内通道内的热沉往往称为热扩散层 ,在三个维度方向都应有较高的热导率),从而使对流散热和辐射散热大大增强 ,进而整个系统的散热能力得到改善。
Claims (6)
1.一种LED封装基板,其特征在于,包括导体层,绝缘层和金属系基板,所述绝缘层一级热沉在金属系基板上,所述导体层二级热沉在绝缘层上。
2.根据权利要求1所述的一种LED封装基板,其特征在于,所述半导体层选用铜箔或铝箔。
3.根据权利要求1所述的一种LED封装基板,其特征在于,所述绝缘层使用充填高热传导性无机填充物的环氧树脂。
4.根据权利要求1所述的一种LED封装基板,其特征在于,所述金属系基板选用铝或铜。
5.根据权利要求3所述的一种LED封装基板,其特征在于,所述绝缘层的厚度为1.5mm。
6.根据权利要求4所述的一种LED封装基板,其特征在于,所述金属系基板的厚度为5mm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410809813.5A CN104576908A (zh) | 2014-12-23 | 2014-12-23 | 一种led封装基板 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410809813.5A CN104576908A (zh) | 2014-12-23 | 2014-12-23 | 一种led封装基板 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104576908A true CN104576908A (zh) | 2015-04-29 |
Family
ID=53092516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410809813.5A Pending CN104576908A (zh) | 2014-12-23 | 2014-12-23 | 一种led封装基板 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104576908A (zh) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004228170A (ja) * | 2003-01-20 | 2004-08-12 | Matsushita Electric Works Ltd | 配線板及び発光装置 |
US20110132644A1 (en) * | 2008-05-29 | 2011-06-09 | Taiki Nishi | Metal base circuit board |
CN103050616A (zh) * | 2011-10-13 | 2013-04-17 | 昆山雅森电子材料科技有限公司 | 复合式导热铜箔基板 |
CN103042762A (zh) * | 2011-10-13 | 2013-04-17 | 昆山雅森电子材料科技有限公司 | 高导热金属基板 |
CN103066186A (zh) * | 2013-01-07 | 2013-04-24 | 浙江华正新材料股份有限公司 | 陶瓷片复合结构的绝缘层、铝基板及其制造方法 |
CN203136323U (zh) * | 2013-03-06 | 2013-08-14 | 乐健科技(珠海)有限公司 | 一种用于led安装的金属基印刷电路板 |
CN203521463U (zh) * | 2013-10-14 | 2014-04-02 | 四川新力光源股份有限公司 | 一种高导热的led-cob封装基板 |
CN204333028U (zh) * | 2014-12-23 | 2015-05-13 | 苏州汉克山姆照明科技有限公司 | 一种led封装基板 |
-
2014
- 2014-12-23 CN CN201410809813.5A patent/CN104576908A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004228170A (ja) * | 2003-01-20 | 2004-08-12 | Matsushita Electric Works Ltd | 配線板及び発光装置 |
US20110132644A1 (en) * | 2008-05-29 | 2011-06-09 | Taiki Nishi | Metal base circuit board |
CN103050616A (zh) * | 2011-10-13 | 2013-04-17 | 昆山雅森电子材料科技有限公司 | 复合式导热铜箔基板 |
CN103042762A (zh) * | 2011-10-13 | 2013-04-17 | 昆山雅森电子材料科技有限公司 | 高导热金属基板 |
CN103066186A (zh) * | 2013-01-07 | 2013-04-24 | 浙江华正新材料股份有限公司 | 陶瓷片复合结构的绝缘层、铝基板及其制造方法 |
CN203136323U (zh) * | 2013-03-06 | 2013-08-14 | 乐健科技(珠海)有限公司 | 一种用于led安装的金属基印刷电路板 |
CN203521463U (zh) * | 2013-10-14 | 2014-04-02 | 四川新力光源股份有限公司 | 一种高导热的led-cob封装基板 |
CN204333028U (zh) * | 2014-12-23 | 2015-05-13 | 苏州汉克山姆照明科技有限公司 | 一种led封装基板 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7766514B2 (en) | Light emitting diode lamp with high heat-dissipation capacity | |
CN105742252B (zh) | 一种功率模块及其制造方法 | |
CN101749553B (zh) | Led小功率发光芯片的封装模块 | |
KR20140118466A (ko) | 발광 디바이스 및 이를 포함하는 조명장치 | |
CN211208432U (zh) | 智能功率模块基板、智能功能模块和电子设备 | |
CN101980388A (zh) | 基于散热器封装的led器件及led器件的制作工艺 | |
US20200028047A1 (en) | Light emitting diode array package structure with high thermal conductivity | |
Luo et al. | Chip packaging: Encapsulation of nitride LEDs | |
CN202535631U (zh) | 具有金属柱的氧化铝陶瓷电路板及其封装结构 | |
CN102788276A (zh) | 一种具有散热功能的led灯 | |
CN204333028U (zh) | 一种led封装基板 | |
CN201766098U (zh) | 一种大功率led与散热器的零热阻结构及led灯 | |
JP6875746B2 (ja) | ダイボンディング基板、高密度集積cob白色光源、及びその製造方法 | |
CN104576908A (zh) | 一种led封装基板 | |
CN208596669U (zh) | 高集成智能功率模块及空调器 | |
CN104019389A (zh) | 一种高效散热的一体化led灯管结构及其生产工艺 | |
CN204303867U (zh) | 一种芯片与荧光体分离式热管理结构 | |
CN101980386A (zh) | 一种基于散热器封装的led器件及led器件的制作工艺 | |
CN103104869A (zh) | 发光元件、背光模组、液晶显示装置和照明设备 | |
US20150009667A1 (en) | Illuminant device | |
CN204005381U (zh) | 一种led灯具 | |
CN203823519U (zh) | 大功率高散热led灯具 | |
CN211295146U (zh) | 散热金属基板 | |
CN203503693U (zh) | 一种功率型led封装结构 | |
CN109841585B (zh) | 一种计及运行工况的大功率igbt模块风冷散热片 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |