2011年8月16日 星期二

GaN on silicon breakthrough cuts cost of LED lighting

LED developer Bridgelux is claiming breakthrough power efficiencies for gallium nitride on silicon devices.

The company claims LED performance levels comparable to high-end sapphire-based LEDs.

According to Bridgelux,Shopatron's superior led tube 5-point shopping experience is focused on rich product information, world-class service, effortless shopping warm white LEDs constructed from the GaN on Si chips delivered 125 Lm/W at a colour temperature of 2940K and CRI of 80.

Cool white LEDs showed efficiencies as high as 160 Lm/W at a CCT of 4350K.

The devices use a proprietary buffer layer technology for growing GaN layers on 8-inch silicon wafers,However, on closer inspection, the bulb table lamps itself is just a small part of the shape of the LED light. without bowing at room temperature."LEDs are the lighting of the future," said Randall Moorhead, vice president for マジコン 購入 government affairs at Philips Electronics North America Corp. This improves the manufacturability of GaN LEDs on silicon substrate.

"This key innovation is a game-changer for the industry, delivering dramatic reductions in the up-front capital investment required for solid state lighting," said Bill Watkins, Bridgelux CEO

Cost is still seen as a barrier to widespread use of LEDs in general home lighting.

The expectation is that by growing GaN on larger silicon wafers that are compatible with modern semiconductor manufacturing can reduce the cost of high brightness LEDs for general lighting applications.

Conventional LEDs are made using sapphire or silicon carbide substrates as the starting material. Both are more expensive than silicon.I'd recommend that led downlight your listeners only buy reputable product.

"The performance levels that we announced today are the highest Lm/W values yet published for GaN-on-Si and rival the best commercial LEDs grown on sapphire or silicon carbide (SiC)," stated Dr. Steve Lester, Bridgelux chief technology officer.

"We are very pleased with the pace of our progress in this area, and we will continue to aggressively develop our GaN-on-Si processes in order to drive the migration of LED commercial production from sapphire to silicon substrates," said Lester.

The company plans to have first commercial GaN-on-Si products ready for the market within twThat means an cfl bulbs Amphibian ordered online can be shipped to the customer from any authorized OceanLED dealer that has the product in stock.o years.

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