LED lighting grows rapidly, sapphire shines

After experiencing a tragic market situation such as overcapacity and sharp drop in prices, this year sapphire has ushered in a new wave of enthusiasm, and in the field of LED substrates, with a high market share, to establish a market dominance. Although some foreign companies are still optimistic about silicon-based gallium nitride and GaN-on-GaN, and continue to invest in these two technologies, but because there is no cost advantage, these two technologies are still unable to achieve mass production. GaN-on-GaN is even cooler. After Seoul Semiconductors screamed for the GaN-on-GaN flag last year, there is no such thing as it. The technology is still in the lab and it is still difficult to get out. The new sapphire boom has benefited from the rapid growth of LED lighting, and sapphire has also ushered in a new wave of enthusiasm. Crystal Optoelectronics Secretary Kong Wenjun revealed that with the expansion of the market, the company plans to expand the production of about 30 LED sapphire substrates. She said that the company's current sapphire PSS production capacity is about 150,000 pieces / year, and plans to expand production capacity to 200,000 pieces / year before the end of the year. In addition, companies such as Dongjing Electronics, Jingsheng Electromechanical, and Han's Laser are also expanding their LED sapphire production capacity or entering the sapphire industry chain (see Table 1). Although sapphire has been used in the field of consumer electronics, it has not been widely used in this field, and LED is still the first demand driven by the sapphire industry. The demand for graphic substrates on the market has also caused the sapphire substrate to heat up rapidly. According to CSAResearch research data, in the first quarter of 2014, the market share of sapphire substrates was as high as 87, and the status of the sapphire substrate was unified. Kong Wenjun said that in the company's sapphire substrate products, the company's current PSS production capacity is still 2 inches, this year will increase the proportion of 4 inches of products. On the other hand, the demand for large-size sapphire wafers has increased. Many large overseas companies (such as LG, Sharp or Osram) are producing on 6-inch wafers, while Taiwanese companies are generally using 4-inch wafers, and domestic companies are gradually turning to large sizes. At the end of last year, GTAT and Apple invested $1 billion to form a large sapphire production plant. It is reported that the plant will have twice the capacity of existing sapphire, and the plant will change the structure of the sapphire and LED industries. At the same time, the sapphire substrate cutting equipment is also benefited from this wave of enthusiasm. Zhang Jianqun, the vice chairman of Dazu Laser, said that last year, the company's LED sapphire substrate cutting equipment achieved nearly 100 million yuan in revenue, and this part of the business was very good at the beginning of this year. In the first quarter, there were already orders close to half of last year's total, and the overall demand of the industry was large. It is expected to have high growth throughout the year. Foreign silicon-based GaN is ready for some overseas companies to mass produce silicon-based GaN LEDs (GaN-on-Si). At the end of May, Plesss Semiconductor Co., Ltd. announced that it has ordered CRIUS II-XLMOCVD equipment manufactured by Axon for the production of silicon-based nitriding LEDs. Dr. Keith Strickland, Technical Director of Plesss, told the media that in the past year, we have achieved great success in the launch of GaN-on-SiLED products. We are currently planning to speed up production, in order to increase production, and in view of the excellent performance of the AIXTRON CRIUS II-XL system, we have ordered another set of the same series of equipment.

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