[Text / high-tech LED Zhao Hui] As the LED industry is gradually maturing, the competition for conventional LED packaging products has gradually increased to the price. Whether it is the mainstream product 2835 in the packaging field or the T8 tube of downstream lighting products, the decline has reached a terrible situation. According to the data of the High-tech Research Institute LED Research Institute (GGII), the total output value of China's LED industry is expected to reach 396.7 billion yuan in 2015, a year-on-year increase of 15.1%. Among them, the LED midstream package production value was 64.2 billion yuan, an increase of 13%. The oversupply situation has spurred the competition in China's LED packaging market to become hot. The prices of domestic packaging companies are almost swaying, and the prices of international LED packaging manufacturers have also fallen by more than 20%. More than 200 packaging companies have closed down or exited the market. The competitive situation in the packaging field has become more and more severe, which has led many companies to increase the research and development of new technologies and new processes to reduce costs and increase profits. The lower cost makes the reduction of the number of devices and columns become the main technical solution, so the EMC that can pass more currents is introduced in large quantities, and the CSP package with potential cost performance becomes mature. Recently, both traditional Haoliang Lumileds, Korean Seoul Semiconductor, and domestic Hongli Optoelectronics, Guoxing Optoelectronics, Yimeixinguang, etc. are vigorously promoting CSP products. Among them, Lumileds launched the LUXEON Q series based on LUXEON flip chip products. Lumileds Asia Marketing Director Zhou Xuejun said at the 2015 Gaogong LED Annual Meeting that CSP can help the overall cost of the system to drop, which is more meaningful than the price drop of a single light source. "Why is CSP chip-level packaging coming up?" Zhou Xuejun believes that CSP is a technological innovation that does not require traditional packaging, removing traditional substrates, solid crystals, wire bonding, potting, and direct PCB board patches. The CSP package is undergoing a technological innovation with a cost reduction. "Lumileds white light CSP chip-level package design concept is to optimize the light efficiency and uniform light." Zhou Xuejun said that CSP chip heat dissipation is better, more uniform than the horizontal chip current distribution, while driving more current to increase lm / $. It is understood that the CSP chip-scale package is gaining more and more applications due to its high current drive capability, good heat dissipation, high reliability, small size and uniform illumination, and the scalable CSP product series makes it attractive in the future. However, there are still some cost and technical problems in the application of CSP, which affects the large-scale application of CSP, but with the maturity of process, equipment, technology and materials, the price, brightness efficiency and quality reliability of CSP And the letter of tolerance will show its competitive advantage. “The new technology will encounter difficulties in matching and experience, such as direct SMT patching process to replace traditional packaging (wire bonding, solid crystal, point phosphor and lens forming).†Zhou Xuejun said that the CSP chip is small and the device is aligned. Higher precision requirements. In the future, the CSP package will continue to improve. As the light efficiency continues to increase, the cost will continue to decrease as the demand expands. The color temperature will be more concentrated due to the perfect application of the phosphor at the chip level. Lumileds pioneered the invention of flip-chip LED chips and was the first supplier of mass-produced (>400KK) CSP products. Its LUXEON Q combines new light extraction and conversion functions to provide high efficacy, especially at high drive currents. The LUXEON Q Series accelerates time-to-market for omnidirectional indoor and outdoor luminaires with an ecosystem fully developed for the 3535 components. Applications include high bay and low bay luminaires, spotlights, outdoor wall packs, replacement luminaires and specialty luminaires. USB4 Series Cable,USB 4 Cable,USB 4.0 Harness,USB Cable 4.0 Dong guan Sum Wai Electronic Co,. Ltd. , https://www.sw-cables.com.jpg)
