CSP observation: What happens when the CSP meets the filament?

When writing this CSP observation, Xiao Bian suddenly thought of last week's spring show in Hong Kong and saw a fresh thing (at least Xiaobian has not seen it in the follow-up CSP and filament market), that is - using CSP The technology of flip-chip filament products, indeed, this can be described as a stunned Xiaobian's "LED view."

“The ceramic bracket is matched with the flip chip and then attached to the aluminum substrate. The advantage of this form is that the heat dissipation effect greatly exceeds the current full-width covered filament, which also constitutes a new component of a 360-degree full-circumference high-wattage bulb. Form." According to Chen Yanming, deputy general manager of Zhongzhi Optoelectronics, who is engaged in this research in the industry.

Xiaobian also deeply understands that the filament has experienced many forms in the packaging structure. The flipping is actually not novel. For example, the earliest batch of Yuzhong Gaohong, which is engaged in the production of filament lamps, was the first to adopt the form of flip-chip. However, the price of the finished product was too high in the later period, and it has not been able to achieve mass production until now.

And the appearance of this CSP filament, will it make another wave in the market? Can you grasp the "sweet spot" of the mainstream manufacturers in the current market? It is only a small factory to test new water technology. With this question, I visited a number of well-known large manufacturers in the industry on this matter.

"CSP from the current point of view, the cost is always high, the market mainstream program, sapphire substrate as a high-end model has been quite mature, at the same time, ceramics, glass as a basic model, cost-effective aspects can also be well controlled, this for the next filament The long-term circulation of lights, the cost advantage, will be of great benefit." Mulinsen executive general manager Lin Jiliang said.

It is understood that Mu Linsen has joined hands with Jingdian and acquired the new and the new and the layout of the filament lamp field has begun to take shape. At present, the filament lamps in overseas markets have been fully sold, and the domestic market will officially start in the third quarter of this year. After the next round of cost reduction, the entire filament lamp market is expected to reach an outbreak.

"In the past few years, LED as a subversive technology, whether it is flip-chip or CSP filament, the industry has always had all kinds of imagination, LED industry has also presented a pattern of flowers, the various forms of expression and the original intention of LED lighting development is also Complement each other." Chen Wenji, general manager of Foshan Lighting LED Division mentioned.

"But when it comes to the circulation market, the most appropriate expression in the LED era, for the moment, the products with the largest circulation channels and high market acceptance are the answers, and this is the production form adopted by many large manufacturers. Cost-effective products, the best products after market testing," Chen Wenji said.

"At the moment, the cost of dressing filaments is more expensive than that of SMD, and the flipping is almost twice that of it. This is undoubtedly a self-destructive future for filament lamps whose prices are already higher than similar products." Shanghai Institute of Microelectronics, Peking University Professor Guangguang mentioned earlier.

However, according to people familiar with the matter, the price of flip-chip filament products using this technology is about 2 pieces per hair. It is expected that the control will be within 1 piece after mass production, which will be significantly better than the current high-end filament price using sapphire technology. Stability will also be improved.

Whether it is as mentioned above, Gaogong LED Xiaobian will continue to follow up on the report...

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