High Power Opto Began Mass Production of Blue and Green LED Chips

High Power Opto LED (HPOLED) chairman KH Huang said the company has begun mass production of blue and green LED chips on silicon substrates, making it the world's third to make blue and green LED chips on silicon substrates behind Cree and Osram. Huang said HPOLED's chips could reach a luminous efficacy of 150 lm/W but the specification for the volume-produced ones is only 130 lm/W, which is comparable to Cree's. He also said the chips are estimated to have a luminous efficacy of 180 lm/W by 2013. The LED street lighting market is heating up in China and that profits for the company are expected to increase throughout the year as well, according to the chairman. Huang estimates that revenues for his company in 2012 will be more than double from 2011's NT$647 million (US$21.9 million) and the company will have a monthly production capacity of 20 million by the year 2013. Huang added that although using silicon substrates for production has costs 10-20% higher than using gallium arsenide (GaAs) or sapphire substrates, heat dissipation will be four times faster and luminous efficacy will increase by 20-30%. He also said the luminous flux and lifespan will be twice as much. High Power's LED chips will be NT$20-25 per unit, half the price of Cree's products that are of the same quality, and will be applicable for street lighting, interior lighting, flash lamps, and LED micro projectors, the company said. Source: DIGITIMES