Last year's heated debate on the CSP marketization was followed by a new wave of interest earlier this year, sparked by a Japanese company’s transfer of its CSP fluorescent film technology. This breakthrough has reignited the industry’s attention.
Degao Huacheng recently signed a technical service agreement with Nitto Denko to handle the localization development and service of the second-generation conformal packaging CSP fluorescent film technology. Just days prior, Zhongshan Stereo Optoelectronics announced the full acquisition of Nitto Dye’s fluorescent film project.
While the CSP conversation has been ongoing for several years, it hasn’t yet gained significant momentum. Tan Gang, Vice President of Sales at Donghao Optoelectronics, explained that new products often require new equipment, and CSP represents a novel packaging form. Due to the declining profitability of the LED market, many firms are hesitant to invest in new machinery, which slows down overall production growth.
Despite these challenges, persistent enterprises like Dongxun Optoelectronics, which began focusing on CSP products in 2015 and increased investment in 2016, are pushing forward. Dongxun Optoelectronics is now capable of batch and scaled production, with plans for further capacity expansion in 2017. Currently, Dongxun Optoelectronics produces over 15-20 million units per month for CSP products above 1W, and this is expected to rise to 40-50 million units monthly by year-end.
CSP products are primarily used in specialized applications like backlighting, flashlights, and automotive lighting. However, in the general lighting market, they face stiff competition from established products like 2835, 3030, and 5730 LEDs due to pricing. Despite this, CSP remains a promising direction for LED packaging, attracting increasing interest from innovators. Dongxun Optoelectronics, one of the early adopters, has already achieved significant market recognition with its diverse CSP lineup, including the popular "1515" and "1919" models, which cover 1-5W power ranges and offer substantial cost advantages.
Tan Gang noted that CSP products have already found success in car headlights, TV backlights, and mobile phone flashes. He anticipates continued growth in areas like general lighting, special lighting, and consumer electronics. For automotive lighting specifically, CSP is primarily used in both original equipment and aftermarket lighting. The aftermarket requires adjustments to achieve optimal illumination standards, modularization for easier assembly, cost reduction for broader accessibility, and enhanced product stability.
One of the previous hurdles for CSP adoption was the lack of standardization. Unlike traditional SMD products, CSP lacks a unified specification. Liu Guoxu, Executive Vice President of Yimeixinguang, emphasized the need for a standard to accelerate CSP’s widespread adoption. Samsung LED addressed this by introducing CSP modules in late 2016, offering adjustable color options and improved compatibility. These modules are designed for spotlight and downlight applications, highlighting CSP's versatility.
Modularization not only enhances CSP’s appeal but also provides flexibility for downstream manufacturers. Donghao Optoelectronics plans to launch its third-generation CSP products later this year, aiming to further simplify customer integration and usage.
The future of CSP appears bright, driven by technological advancements and increasing demand for high-performance lighting solutions.
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