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Coping with the price war, Korean and Japanese manufacturers to develop new materials to grab the market
In order to compete with Chinese manufacturers, Seoul Semiconductor (SeoulSemiconductor) and LGInnotek actively develop gallium nitride (GaN) substrates. The packaging and testing plant also intends to replace epoxy resin (Epoxy) with silicon to enhance product efficiency and extend use. life. Korean media etnews reported on the 17th that LED lighting is currently dominated by sapphire substrates and silicon carbide (SiC) substrates. Hanfang researched gallium nitride on GaN-on-GaN substrates, which can be solved poorly. Dislocation problem. Seoul Semiconductor invested more than 10 years ago in research and development, obtained relevant patents, and previously launched nPola products, which are 5-10 times brighter than current LED lighting. The company claims to announce more advanced products than nPola soon. LG Innotek also joined in the development of this technology, but GaN is expensive, the company is still adjusting the product launch time. In the packaging and testing plant, Han Factory began to use silicon as a packaging material to replace epoxy resin. When the epoxy resin is used for 3,000 to 6,000 hours, color shift phenomenon occurs, and the silicon usage time is 10 times longer, and 30,000 to 50,000 hours can be used. In addition, manufacturers are also developing materials that are cheaper than silicon. According to industry insiders, the performance of GaN and silicon is better than current materials. The disadvantage is that it is expensive. To increase market competitiveness, it is necessary to lower prices and improve performance. Japan Media Daily Industrial News reported on July 11 that Toshiba plans to officially mass-produce white LED products within this year (in 2014) with the goal of significantly expanding its monthly production capacity to 150 times. The white LED produced by Toshiba uses the GaN-on-Si LED component developed by the company and the American white LED manufacturer Bridgelux (Taiwan Semiconductor (2330) to invest in the company), compared with the current LED components using sapphire wafers. Competitive in price. Toshiba acquired the white LED chip related assets such as GaN-on-Silicon technology owned by Preh in April 2013.