Before designing multi-layer PCB circuit board, the designer needs to first determine the circuit board structure according to the scale of the circuit, the size of the circuit board and the requirements of electromagnetic compatibility (EMC), that i
PCB (printed circuit board), whose Chinese name is printed circuit board, is one of the important components in the electronic industry. Almost every kind of electronic equipment, from electronic watches and calculators to computers, communication el
FPC circuit board can be divided into single panel, double-sided board and multilayer board according to the number of circuit layers. The common multilayer board is generally 4-layer board or 6-layer board, and the complex multilayer board can reach
Our common computer boards and cards are basically epoxy resin glass cloth based double-sided printed circuit boards. One side is the plug-in components, and the other side is the welding surface of the component feet. It can be seen that the welding
At present, punching is the most used in batch processing of FPC circuit boards, and NC drilling and milling is mainly used for small batch FPC circuit boards and FPC circuit board samples.
Special attention should also be paid to the packaging of finished products of flexible circuit boards, rather than simply stacking an appropriate number of flexible boards together at will. Due to the complex structure of flexible printed board, it
Therefore, generally, the roll covering film is sealed in polyethylene plastic bags. After taking it out of the cold storage, the sealing bag should not be opened immediately, but should be placed in the bag for several hours. When the temperature re