As we all know, after several years of development, COB light source technology is about to enter a new stage of development this year. The market has turned into a competition of high quality, high luminous efficiency and high stability. At the same time, the package gross profit margin has dropped sharply year by year. Enterprises are urgently reducing product costs. The highly integrated and cost-effective COB has become an effective means for companies to seek new profit growth points. In this context, Zhonghao Optoelectronics completed the development of the CC3570 series on August 5, 2015. According to the relevant person in charge of Zhonghao Optoelectronics, “The new product is packaged by flip-chip alloy eutectic process, the thermal resistance is greatly reduced, the reliability of the product is greatly improved; at the same time, the high power density design is adopted, and the lamp is more convenient. The shape and structure of the design." Most importantly, the new product can be used for a long time at 220 °C under high temperature through pulsed phosphor coating technology. It has high crack resistance and is suitable for small volume heat dissipation and relatively sealed automotive headlights. CC3570 product technical parameters 1. Photoelectric performance parameters: the luminous efficiency is greater than 120 lm/W; 2, aging test parameters: high temperature and high humidity (85 ° C, 85% RH) 264 hours aging luminous flux maintenance rate of 100%, color temperature drift is less than 50K. CC3570 products have strong market competitiveness, mainly reflected in six aspects: 1. AlN high-conductivity ceramic substrate is used, the thermal conductivity is greater than 200W/(m*K), and the insulation withstand voltage performance is good; 2, using high power density design, the light emitting surface is small, the power density can reach 150W/cm2; 3, using gold-free alloy eutectic welding technology, wafer electrode welding reliability, void rate and thermal resistance; 4, using pulsed phosphor coating technology, the thickness of the fluorescent film is as thin as 60±5um, the colloid has good temperature resistance, can withstand long-term use at 220°C, has high compression and crack resistance, suitable for small volume heat dissipation and relative sealing. Car headlight environment use; 5, the chip matrix arrangement, the gap between the chips is as small as 0.1mm, uniform illumination, good light color consistency, more convenient secondary optical design; 6, using braided automatic packaging, the lighting factory can adopt automatic placement, high production efficiency; Some customers' evaluation of the product A customer: Zhongguan CC3570 inverted headlight COB, smaller size, provides more space for LED car headlight design. B customer: The COB light effect of the inverted headlight can reach 120lm/W @ Ra>70, which fully meets the brightness requirements of automotive headlight products. C customer: It adopts braided packaging and can be mounted on automatic machine, which has high production efficiency. D customer: high thermal conductivity (>200W/mK), better heat dissipation and high product reliability. E customer: CC3570 products are exquisite in craftsmanship, and the product performance is perfectly matched with the optical matching of the headlights. F customer: The raw materials of the products are guaranteed, the quality is good, and the cost is high! G customer: using the flip-chip process, through high temperature withstand voltage and other tests, almost no light decay, product reliability, quality is guaranteed. H customers: exquisite craftsmanship, product performance and optical matching of the headlights are perfect. I customer: Flip eutectic + powder spraying process lamp products, colloidal temperature resistance, can withstand long-term use at 220 ° C high temperature, high crack resistance! About Zhonghao Optoelectronics Foshan Zhonghao Optoelectronics Technology Co., Ltd. takes the technology of top-notch talents returning to China as the core, and relies on the research and development platform of Sun Yat-Sen University Semiconductor Lighting System Research Center to engage in research and development, production, sales and technical services of LEDCOB light source products. enterprise. The company's COB products are divided into four series: Shang Zhao Yao Ming / True Color / Sunshine Series (80/90/95), outdoor industrial and mining lighting "Gianliang" series, special light color "Special Color" series and lighting "Wind Chi" series. Zhonghao adheres to the "talent" and "technology"-based, adhering to the "create value for customers, create opportunities for employees, create profits for shareholders, create wealth for the society" business principles, is committed to becoming China's high-quality optoelectronic integrated products Excellent company. 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