CREE is a Nasdaq-listed company in the United States. It is a well-known manufacturer of LED epitaxy, chip, package, LED application solutions and compound semiconductor materials. It is committed to promoting the transformation of LED lighting and eliminating low-energy lighting sources.
The advantages of Cree LED lighting products are unique materials technology and advanced white light technology such as gallium nitride (GaN) and silicon carbide (SiC). It has more than 1,100 US patents and more than 2,800 international patents. The products are widely used in Beijing. Major national projects such as the Olympic Games and the Shanghai World Expo. Cree provides customers with high-quality, high-reliability lighting devices while providing customers with a complete set of LED lighting solutions. On the morning of October 16, 2010, Mr. Steve Kelley, Executive Vice President and Chief Operating Officer of Cree, Mr. Shi Yucan, Vice President and General Manager of China, and Mr. Lin Tie, Marketing Manager of Career China, visited the 7th China International Semiconductor Corporation. The Lighting Forum News Center received an exclusive interview with several media.
In 2010, in order to expand its leading position, increase scale advantage, and improve cost structure and channels, Cree will start to increase investment in several aspects. Mr. Steve Kelley said that in terms of technology, Cree will continue to invest in the following three aspects and increase the progress of scientific research. The first aspect is to continue to invest in LED chips, pushing forward the efficiency of the chip, including The material and the overall structure optimization make the brightness of the chip further improved; the second aspect is to achieve the brightness of the LED device by better integration of the package; the third is to optimize the reliability of the entire package to continue Enhance the design of LEDs in terms of reliability.
In 2007, Cree acquired Huagang and began packaging production in China. At present, it has established a chip production base in Huizhou and has achieved mass production. Mr. Steve Kelley also said that in the future, Cree will continue to increase its investment. At the same time, Cree currently has three engineering application centers in China to serve their customers, located in Shanghai, Shenzhen and Hong Kong.
The LED City Plan is one of the projects initiated and supported by Cree. It is currently available in Raleigh, Boston, Toronto, Canada, Bremen, Germany, Apecio, Italy, Gwangju, Korea. 24 cities from 7 countries including Tirupati, Tianjin, and Huizhou have joined the program. As far as the plan itself is concerned, how can we win more cities to join the program and make LED green lighting more widely used in urban lighting? Mr. Steve Kelley said: “Cui Rui participated in the launch and focused on supporting the LED city plan. At that time, there are several goals: First, we must realize the popularization of LED lighting products at the public level, so that ordinary people can truly enjoy the benefits brought by high-tech lighting products; Second, the LED city plan should be established. A platform for sharing experience in resource information has promoted the healthy, scientific and orderly development of the LED lighting industry. Career plans to unite more government departments, industry organizations and enterprises to build a “LED City Green Lighting Cooperation Platform†to accelerate the construction of resource conservation. An environmentally friendly society that achieves inclusive growth that is widely shared.
In the next few years, what kind of miracle will there be in the next generation of Cree? Steve Kelley said in response to a reporter's question, Cree will continue to strengthen its investment in terms of brightness and efficiency. For the time being, the light efficiency of the products delivered to customers in large quantities is about 140 lumens per watt. In the next three months, 160 lm/W XLamp XM LED products will be delivered to customers in large quantities. . In terms of the current highest level of research and development in the world, Cree announced in February that its laboratory has reached 208 lumens / watt, which is a landmark record. According to Cree's experience, the time from the development of the laboratory to the mass production of the delivery to the customer, this time will take about three years. That is to say, around 2013, Cree will launch LED products with a luminous efficacy of over 200 lumens/watt.
In addition, since last year, China's LED market has developed rapidly, large and small enterprises have emerged rapidly, and a variety of LED lighting products have been put into the market. How does Cree maintain its leading position in LED? Steve Kelley “Cyre is developing high-quality LED products for each market segment and providing customized system solutions for customers. Cree Factory is at the customer's side, Cree products are at the customer's side, and Cree is at the customer's side. And one of Cree's main product positioning is lighting, we believe that lighting is one of the most challenging areas, because it has very high requirements for reliability, brightness and efficiency of LED. Cree first proposed The concept of "illumination-class LED" focuses on general lighting in commercial lighting, hotel lighting, road lighting, etc. The advantages of lighting-grade LEDs are not only high luminous efficiency, but also a high color rendering index and high security of true color. High stability. So it can be said that so many companies investing in the LED industry have little impact on us, and more companies are involved. It will also make the LED industry cake bigger.
According to relevant industry organizations and media reports, 2010 is the golden age of LED lighting, an era of opening. Mr. Steve Kelley also agreed with this view. He believes that from 2010, it is the golden time of LED lighting, which is mainly reflected in several levels: First, LED cost is now falling very fast, and LED performance is improving very fast, plus the government's LED lighting industry. Increasing attention and greater investment and support are all very positive factors. The LED lighting industry will usher in a very good development time. Kerui will continue to adhere to the "scientific and technological innovation, forge ahead" philosophy and "Keui core, China's love" development strategy, and further strengthen cooperation with domestic industry colleagues, to contribute to the development of China's LED industry. In China, for China! In China, for the world!
Printed Circuit Board assembly sometimes called PCB Assembly(PCBA).
The bare board is populated with Electronic Components to form a functional. In through-hole technology, the component leads are inserted in holes surrounded by conductive pads; the holes keep the components in place. In surface-mount technology (SMT), the component is placed on the PCB so that the pins line up with the conductive pads or lands on the surfaces of the PCB; solder paste, which was previously applied to the pads, holds the components in place temporarily; if surface-mount components are applied to both sides of the board, the bottom-side components are glued to the board. In both through hole and Surface Mount, the components are then soldered; once cooled and solidified, the solder holds the components in place permanently and electrically connects them to the board.
PCB Assembly
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