2013 (3rd) High-tech LED Lighting Exhibition officially opened on November 25th at Guangzhou Pazhou Poly International Trade Fair Exhibition Hall. More than 200 domestic LED brand manufacturers brought LED products to the show, and the upper, middle and lower reaches of the company and the number of domestic and overseas enterprises Ten thousand professional visitors exchanged ideas and jointly promoted the progress of the LED industry.
HDI circuit board is a circuit board with high circuit distribution density using micro-blind and buried via technology.The HDI board is divided into inner layer circuit and outer layer circuit, and the internal connection of each layer circuit is realized by drilling and metallization.
We are a large professional printed circuit board manufacturer and also have the ability to produce multi-layer HDI circuit boards.
HDI PCB Manufacturer,Multilayer HDI PCB,Blind Buried via plate,HDI Plate,ENIG Surface Finished Huizhou Liandajin Electronic Co., Ltd , https://www.ldjcircuitboard.com
Huaquan dimmable power supply can be programmed to match different output voltages and currents to achieve full-range dimming. The entire dimming process is smooth and without mutation, and does not affect the visual effect. 
Therefore, the higher the application of HDI technology, the higher the manufacturing level of the laminate. Ordinary HDI boards are laminated once, and high-end HDI uses two, three or more lamination processes, as well as electroplating fill holes, stack holes, laser direct drilling, etc.