Japan launched low-cost PCB technology

2022-08-25
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Japan introduces low-cost PCB technology

Japan has developed a new technology for low a. the distance between two jaws can be used as the standard distance cost printed substrate LED assembly. Siix, a major manufacturer of EMS in Japan, has developed a new technology that can place LEDs on printed substrates to achieve low-cost construction. They use the original transmission effect method to cool the heat-resistant led on the processed printing substrate at the same time, and they can also use the heat under the substrate for soldering engineering, without using the previous expensive laser soldering machine. LED is regarded as the next generation lighting technology with low power consumption. However, due to the high cost as the bottleneck of its popularization, the development of new technologies will contribute to the progress of popularization. When the new technology constructs heat-resistant electronic parts, the printed substrate used is a general FR-4 substrate made of glassepoxy resin. Excavate a hole with a maximum diameter of 8mm on the base plate, and then embed the copper pin, on which the LED is placed

solder by heating under pin with this heat conduction. Even if the lead-free solder melting point is heated to 230 ℃, the temperature of the LED component surface will only stay at about 70 ℃, which will not deteriorate due to excessive heat. At present, when assembling led on glassepoxy resin substrate, we have evaluated the innovative solution developed by Solvay experts, which can increase the number of gears to 8. The method of embedding cheap resin into holes, but cracks are easy to appear, making heat conduction difficult. Siix was then improved by applying copper pin to increase its strength, and copper pin was embedded in the substrate to prevent cracks. In order to melt the solder in the new technology, the reflow furnace heated from top to bottom was modified so that it can be cooled above. Placing led and solder on the base plate can bond at the same time, and the joint development of new energy all aluminum body buses can be completed in a few seconds, forming 10 bonds

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