2020-04-13

HPO Successfully Develops a New Si Substrate LED Chip for Horticulture Lighting Application with 70% WPE

High Power Optoelectronics (HPO) is the world's one and only professional manufacturer of full gamut (from 365 nm UV to 940 nm IR light), vertical-structure LED chips, holding the world's oldest LED-single crystal substrate wafer bonding patent. This wafer bonding process turns the original substrate into a silicon substrate after MOCVD epitaxial growth, giving LED chips exceptional thermal conductivity, and allowing them to provide even better luminous efficacy under high current and increased component reliability. (Dr. Chih-Sung Chang, Chairman of...
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For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ MORE

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