Shenzhen LED Industry "Block" Development The LED semiconductor lighting industry is very popular in recent years for its low-carbon environmental protection. On December 24, 2012, the Bao'an District Semiconductor Lighting Industry Innovation Alliance was established, which indicates that the semiconductor lighting industry in Baoan District will form the advantages of agglomeration, pioneering, resources, platforms, talents, and project integration, and the development of this emerging industry will reach Important role.

At present, there are more than 1,500 semiconductor lighting companies in Shenzhen, accounting for one-third of the country's total; and in more than 20 listed companies in the country, Shenzhen has occupied half of the country. How does the industry grow? How to take advantage of competition in the international market? The establishment of the Bao'an District Semiconductor Lighting Industry Innovation Alliance has taken a new path. According to reports, the coalition was initiated by nine leading companies and formed alliances with research institutes such as Shenzhen Graduate School of Tsinghua University, Institute of Optoelectronics of Shenzhen University, Shenzhen Advanced Technology Research Institute of Chinese Academy of Sciences, etc., forming a set of professional, academic and joint A service-oriented, non-profit consortium.

Union Secretary-General Bao Enzhong said that the alliance adheres to the enterprise as the main body and realizes the effective integration of enterprises, scientific research institutions and financial capital at the strategic level. It forms a win-win situation for investment in production, research and development, and cooperates with production, research, and cooperation, and cooperates with the upstream, middle, and lower reaches. In terms of innovation and other aspects, it will further give play to the role of synergies and promotion.

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Multilayer PCB is a circuit board with two or more layers. The material unlike Double-Sided PCBs with only two conductive layers all multilayer PCBs is that it must have at least three layers of conductive material, and the PCB boards are buried in the center of the material.

Benefits of Multilayer PCBs (compared to single or double-sided PCBs)

Higher assembly density 
Smaller size (considerable savings on space)
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Easier incorporation controlled impedance features.
EMI shielding through careful placement of power and ground layers.
Reduces the need for interconnection wiring harnesses (reduces overall weight

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