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 HPO)

HPO uses silicon substrates as a base for all of its products, and has hence named its technology platform “SiliLED.” With this platform, HPO has developed products with differently colored lights, numbered 5, 8 and 9. Phosphide SiliLED5 visible light emitters a wavelength range of 580 nm to 730 nm; arsenide SiliLED8 Infrared light emitters a wavelength range of 750 nm to 950 nm; and nitride SiliLED9 products with a wavelength range of 365 nm ultraviolet light to 540 nm green light. These three product series have SiliLED5, SiliLED8 and SiliLED9 as their registered trademarks in Taiwan, China, the U.S., EU, Korea and Japan, and have become logos standing for HPO's high-power, Si substrate LEDs. HPO also provides related technical support and aftermarket service for these products.


(Image: HPO)

Red and yellow SiliLED5 phosphide products have been widely applied to the automotive market, with 14mil 0.2W PLCC red emitters and 24mil 0.5W PLCC red emitters giving off a light intensity over 3500 mcd and 9500 mcd respectively after packaging. These products have been used in brake lights, tail lights and turn signal lights. The recently developed new high power horticultural LED chip at 660 nm wavelength can give a light output power of 440 mW under a current of 350 mA, and can achieve a WPE of 70% after packaging.


(Image: HPO)

HPO has more than 20 years of experience with using state-of-the-art vertical structure LED technology in epitaxial material preparation, chip structure design, and process engineering. It owns a complete patent portfolio, and has earned the recognition and support of its customers.

HPO's chairman Dr. Chih-Sung Chang says that HPO has braved the highly competitive optoelectronics market thanks to years of technological expertise in visible-spectrum products. He hopes that with the introduction of new products developed with MOCVD-epitaxy, such as 1310 nm LEDs, InGaAs PINs and VCSELs, HPO may go on to become the top brand and provider of highly stable and reliable optoelectronic components.

HPO’s customers have validated its high-end products for automotive and horticulture lighting. The company aims to demonstrate its craftsmanship in the competitive red ocean market of LEDs. With a focus on increased quality and performance, HPO strives to create new blue oceans and promote green energy industries.
 

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