Development of High-Performance Optical Silicone for the Packaging of High-Power LEDs

被引：66

作者：

Lin, Yeong-Her ^{[1
]}

You, Jiun Pyng ^{[1
]}

Lin, Yuan-Chang ^{[1
]}

Tran, Nguyen T. ^{[1
]}

Shi, Frank G. ^{[1
]}

机构：

[1] Univ Calif Irvine, Optoelect Packaging & Mat Labs, Irvine, CA 92697 USA

来源：

IEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES | 2010年 / 33卷 / 04期

关键词：

High-power LEDs; light-emitting diodes (LEDs); packaging; refractive index (RI); reliability; silicone; transmittance; LIGHT-EMITTING-DIODES; REFRACTIVE-INDEX; ENCAPSULANT; TEMPERATURE; GELS;

D O I：

10.1109/TCAPT.2010.2046488

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silicone materials with a relatively high-refractive index have been introduced for the encapsulation of high-power light-emitting diodes (LEDs), and LEDs with relatively short wavelengths. However, most of those existing silicone encapsulants still suffer from thermal and radiation induced degradations and thus lead to reliability issues and a shorten lifetime. A new high-performance silicone has been developed and its performance is compared with other commercial silicone and optical grade epoxy in high-power white LEDs. The new materials had been found to suffer less loss in the lumen output during the aging test and high-temperature/high-humidity test, as well as the Joint Electron Devices Engineering Council (JEDEC) reliability test. It is concluded that this material is excellent for the packaging of high-power white LEDs and high-power colored LEDs, because of its ability in maintaining high-transparency and great radiation/thermal resistance.

引用

页码：761 / 766

页数：6

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