Is the unpackaged LED chip being fired "real fire" or "virtual fire"?
As the technology of the LED industry continues to refresh, technologies such as encapsulation, power removal, and heat dissipation have gradually matured. Such concepts have become the hot words of major industry conferences and forums in 2014. Unpackaged chips are in this wave of innovation. The rise of the new concept, and it is understood that the unpackaged chip is not really free of packaging, essentially different from the previous new packaging form, making the entire light source size smaller, close to the chip level.
At the same time as the heat of the non-packaged technology chip continues to ferment, its mystery is gradually unveiled. The commentary of good or bad is increasing with the deepening of cognition. Some people wait and see, some people explore, others have already acted, and this prospect is expressed. Quite optimistic, then, why is the unpackaged chip capturing the "heart" of these pioneers?
Mo Qingwei, vice president of Dehao Runda Chips Division, told reporters that the core advantages of unpackaged chips are mainly reflected in three aspects: First, it caters to the current trend of miniaturization of LED lighting applications, and the size of unpackaged chips is smaller, design More flexible, breaking the limitation of the size of the light source to the design; secondly, in the case of equal luminous flux, reducing the light-emitting surface can increase the optical density, resulting in higher light efficiency; third, no packaged chip does not require gold wires, brackets, Solid crystal glue, etc., if applied in a wide range, the cost performance and cost advantages are more obvious.
Based on the advantages of unpackaged chips, Chen Shengpeng, general manager of Stereo Optoelectronics, is also optimistic about its prospects, indicating that 2015 will be the first year of unpackaged chip promotion and application, and will be popular in the past two or three years. Mr. Chen told reporters that in addition to the three advantages mentioned above, the unpackaged chip has higher security and reliability than the original COB package, and its endurance is dozens of times. They even used car grinding. Pressed the experiment, FCOM (no packaged chip) can still emit light after being crushed. In addition, the packaged chip does not need to pass through the sapphire heat dissipation, and directly adopts the cross-section conduction of the pad, so that the same specification chip can withstand a larger amount of current, and the film phosphor technology used, the light color consistency is also good.
Although the concept of unpackaged chips has been heated by the industry, there are not many companies that really understand and apply unpackaged chips in the industry. Most of them still stay at the conceptual level and have not really applied. As a pioneer explorer in the field of unpackaged chips, Zhongshan Stereo Optoelectronics has developed unpackaged chip placement equipment with independent intellectual property rights, and the cost is less than 1/10 of that of imported equipment. The reporter also learned that as early as last September, Stereo Optoelectronics had carried out strategic cooperation with Samsung LED on the unpackaged chip project. The two had practical application attempts on the premise of complementary resources and achieved good results.
When talking about unpackaged chips, Tang Guoqing, the general manager of Samsung LED China, analyzed the significance and value brought by the application of this new technology from the macro environment of the whole industry. Mr. Tang believes that the birth of seamless chips will allow upstream chip companies to directly connect downstream application companies, realize the integration of the industry chain, shorten the industry chain, and reduce the overall circulation cost in the long run. Lighting companies can choose the right one according to their own needs. The design of the light source and the innovative design of the luminaire will be completely liberated. After a wide range of applications, the cost advantage will become larger and larger, and the social benefits will become increasingly obvious.
When the reporter asked the two giants, Samsung and Dehao Runda, why they chose Stereo Optoelectronics as an unpackaged chip partner, and their answers were strikingly similar. Samsung Tang said that LED will be one of Samsung's important long-term key development businesses. With the launch of high-power flip chip LH351B LED, FC LED and medium power LM302A LED and other advanced LED products, it needs a long-term strength. Partners, I believe that we will be able to open a new era of LED lighting with stereo photoelectric and domestic lighting customers. Dehao Runda’s General Manager Mo told reporters that Dehao has its own core technology in chip manufacturing, and Stereo Photoelectric is the first to develop unpackaged chip technology and equipment. Currently, it has a complete set of application solutions without packaged chips. It is not only complementary but also has the same goal. Therefore, cooperation is natural.
The concept is hot, the cooperation is flourishing, does the unpackaged chip really ushered in the spring of blossoms? Will it have an impact on the existing industrial chain structure? The reporter took these questions and interviewed some people in the industry. The final point of view is whether the market is "real fire" or "virtual fire". It is not a certain individual or a certain enterprise that has the final say. Leave it to the market to comment.
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