发明授权
- 专利标题: LED light source having improved resistance to thermal cycling
- 专利标题(中): LED光源具有改善的耐热循环性能
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申请号: US11845501申请日: 2007-08-27
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公开(公告)号: US07968899B2公开(公告)日: 2011-06-28
- 发明人: Norfidathul Aizar Abdul Karim , Siew It Pang , Kheng Leng Tan , Tong Fatt Chew
- 申请人: Norfidathul Aizar Abdul Karim , Siew It Pang , Kheng Leng Tan , Tong Fatt Chew
- 申请人地址: SG Singapore
- 专利权人: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- 当前专利权人: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- 当前专利权人地址: SG Singapore
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
A light source and method for making the same are disclosed. The light source includes a substrate, a die, and a cup. The substrate has a plurality of electrical traces thereon and the die includes an LED that is connected to two of the traces. The cup overlies the substrate and is filled with an encapsulant material. The die is located within the cup and is encapsulated by the substrate and the encapsulant material. The cup and encapsulant material have substantially the same coefficient of thermal expansion. The cup can include reflective sidewalls positioned to reflect light leaving the die. The cup, encapsulant and substrate can be constructed from the same material.
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