Development of high-power UV LEDs for epoxy curing applications

W. H. Liu; C. F. Chu; C. C. Cheng; K. H. Hsu; Y. T. Chung; Y. K. Wang; C. C. Li; J. Y. Chu; F. H. Fan; H. C. Cheng; Y. W. Chen; Y. H. Chang; L. W. Shan; T. Doan; C. Tran

doi:10.1117/12.845472

16 March 2010 Development of high-power UV LEDs for epoxy curing applications

W. H. Liu, C. F. Chu, C. C. Cheng, K. H. Hsu, Y. T. Chung, Y. K. Wang, C. C. Li, J. Y. Chu, F. H. Fan, H. C. Cheng, Y. W. Chen, Y. H. Chang, L. W. Shan, T. Doan, C. Tran

Author Affiliations +

Proceedings Volume 7602, Gallium Nitride Materials and Devices V; 76021K (2010) https://doi.org/10.1117/12.845472
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

High power near-UV LEDs, with wavelengths from 365nm to 410nm, were realized with an external quantum efficiency from 12% to 45% for 365nm and 410nm, resp. We show that the vertical LED design, coupled with the Silicon sub-mount package, gives very good reliability that is suitable for many high power epoxy and polymer curing applications. UV LEDs are proven to be a good replacement for high power mercury lamps currently used in the market.

Citation Download Citation

W. H. Liu, C. F. Chu, C. C. Cheng, K. H. Hsu, Y. T. Chung, Y. K. Wang, C. C. Li, J. Y. Chu, F. H. Fan, H. C. Cheng, Y. W. Chen, Y. H. Chang, L. W. Shan, T. Doan, and C. Tran "Development of high-power UV LEDs for epoxy curing applications", Proc. SPIE 7602, Gallium Nitride Materials and Devices V, 76021K (16 March 2010); https://doi.org/10.1117/12.845472

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