From January 5th to 6th, 2017, the 2016 Gaogong LED Golden Globe Awards Ceremony and the 10th Anniversary of Gaogong Industry and Research were held in Shenzhen Shajing Vienna Hotel.
On January 5th, in the "Next Technical Battle of Packaging" special event by Hyun Shuo Optoelectronics, Ye Shanghui, executive deputy general manager of Zhongke Core Source, brought the application trend of K-COB ultra-high power COB to the guests. Keynote speech.
In addition, Zhang Xiaofei, Chairman of Gaogong LED, Zhao Yutao, Chairman of Hyun Shuo Optoelectronics, Ye Shanghui, Executive Deputy General Manager of Zhongke Core Source, Zhu Fengmeng, Chairman of Taiwan Technology, Qu Junyi, Chairman of Liyang Co., Ltd., General Manager of Xinyichang In the round-table dialogue between Song Changning and Wang Mengyuan, the general manager of Zhonghao Optoelectronics, Ye Shanghui also published his unique insights.
Ye Shanghui, Executive Deputy General Manager of Zhongke Core Sources
The following is the quotation of Ye Shanghui
LEDs enter the professional lighting field, first of all to improve light output and light stability. Whether in the traditional lighting market or in the specific lighting field, there are high requirements for light source, light output, and light distribution.
The structure of COB has been around for 20 years. When it was used in low-power applications in the early days, its performance focused on chip temperature control. When a certain power is reached, the COB light source can achieve hundreds of watts from tens of watts. There are many professional analysis in the industry. The chip temperature control itself can achieve a relatively ideal range, but after the power is increased and the density is increased, its fluorescence conversion. Part of the fever can not be ignored, the COB performance exceeds the withstand temperature at 50 watts. If the power is too large, more than 200 watts, its temperature may exceed 300 degrees, and its heat source is not in the chip.
Fluorescent ceramic is a ceramic crystal. A technology converted from laser ceramics matches the visible yellow light part and maintains the characteristics of the original ceramic. It has good thermal conductivity and good temperature resistance. We designed a three-dimensional package structure to allow the heat of the fluorescent part to be equalized on the fluorescent ceramic and to be guided to the heat sink by the design of the structure. The effect of our practical application is that at 600 watts, the center temperature of the phosphor ceramic can be controlled at about 120 degrees at a TC point of 105 degrees.
We started from lighting, mainly for professional lighting. The traditional lighting fixtures with a power of more than 1000 watts are actually a relatively blank market.
From the previous analysis of the replacement rate and permeability data, in fact, in the field of professional lighting, the penetration rate is very low, and the penetration rate of indoor lighting and commercial lighting has exceeded 60%. Professional lighting is very deep and professional in some areas. For example, a company in the United States only does sports lighting. There is only one type of product, and there are billions of markets in the world every year.
In fact, in a certain field to do fine, there is a large enough market. Some enterprises are suitable for growing up, and some enterprises need to develop in depth at a certain point. We hope to do some work in the market segment in specific areas.
For streetlights, the Semiconductor Alliance initiated the standard for streetlights, modularizing streetlights, and each module was limited to less than 50 watts of power. However, one or two modules may be broken on many roads, and the purpose of design modularization is to facilitate replacement. But the cost of replacement is more expensive than the lamps, so it will not change.
In fact, a light source, if you can do it, is also a good solution, which greatly reduces the cost of maintenance. From the manufacturing cost of the luminaire to the cost of use is a comprehensive consideration, in some areas to consider the cost of use and maintenance.
If the light is made into a light source, of course, there will be some technical challenges. If these problems are solved, it will inevitably reduce many devices, reduce the failure rate, and reduce the maintenance cost. In fact, there is such a market demand. occasion.
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