In the manufacturing of PCB, the pressing process usually refers to the copper foil, semi-cured sheet and the core plate (inner layer) of the line that has been made, in a certain order, and then through the press, the first hot pressing, under high temperature and high pressure conditions, it is integrated, and then cold pressing, releasing stress to ensure that the product is smooth.
pcb circuit board is one of the important components of the electronics industry, almost every electronic equipment, small to electronic watches, calculators, large to computers, communication electronic equipment, as long as there are electronic components such as integrated circuits, in order to make the electrical interconnection between the various components, to use printed boards.