[Text / high-tech LED Zhao Hui] As the current listed company with LED epitaxial chip production capacity has jumped to the second place in China, Huacan Optoelectronics, which has just passed its 10th birthday, is frequently deployed in many aspects such as capacity expansion, new product development, and cost control. force.
“Huacan Optoelectronics insists on focusing on the 'core world' and does not expand the whole industry chain. Our goal is to be a professional chip supplier to produce high-quality LED epitaxy and chips. China's LED packaging and application companies are relatively early in development. We hope to use the professional division of labor in the industry chain to carry out effective market allocation and maximize the overall performance of the industry chain.†Hua Di Optoelectronics Vice President Bian Difei said at the 2015 High- tech LED Annual Meeting held recently.
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According to the forecast data of the High-tech Research Institute LED Research Institute (GGII), the total size of China's LED industry in 2015 was 396.7 billion yuan, a year-on-year increase of 15.1%. Among them, the output value of LED chips reached 13 billion yuan, an increase of 8% over the same period last year.
According to GGII data, the chip company's operating rate is very high in 2015. More than 85% of the top five chips, including Huacan and Tongfang, account for 65% of the market, and the industry is rapidly concentrated. The chip market is gradually beginning to clear, and its market share is concentrated in several large companies.
Since last year, with the continuous expansion of chip factories such as Sanan Optoelectronics, Huacan Optoelectronics and Aoyang Shunchang, coupled with the slowdown in the growth of LED lighting demand, the industry competition has intensified, as the most upstream chip link in the LED lighting industry chain. I feel this pressure as well.
Under the unfavorable situation that the price of LED chips continues to decline, Huacan Optoelectronics is responding to new changes in the market through innovative means such as technology research and development and cost control. Flip chip has become an important layout of Huacan's new game.
At present, the international market has been applied for a long time, and the US and South Korean markets have been able to perform better chip-to-package docking and application in medium and large-sized backlights. However, the packaging market is still immature, and the client's packaging methods and usage methods are diversified, which requires further exploration and optimization.
"Flip-chip technology has been relatively mature, and light efficiency has continued to increase. It has entered the initial stage. The proportion of flip-chip LED shipments can increase to 32% in 2019." Bian Defei said that flip-chips can be widely used in general-purpose applications. Lighting, special photos, high power, flash, projection, medium and large size backlights and other market segments.
Talking about the advantages of flip chip, Bian Defei believes that flip chip LED chips have lower chip thermal resistance (over current use).
Better chip take-up (high efficiency) without the need for gold wires (integrated, high density).
It is understood that Huacan Optoelectronics' flip chip has its own unique technical advantages. Firstly, it adopts P-type reflective electrode, which does not generate Ag migration, and the chip is more stable and reliable. It has a good solder joint preparation process, and by optimizing the electrode structure, the voltage is greatly reduced and the light efficiency is improved. At present, the light efficiency of Huacan Optoelectronics flip chip can reach 180lm/W.
"Currently, Huacan Optoelectronics flip-chip production capacity is 20,000 pieces / month (2 inches), and in 2016 it can reach 100,000 pieces / month (2 inches)." Bian Defei said that Huacan Optoelectronics is based on customized Demand, together with customers to develop the flip chip market.
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