From the beginning and till today the electronic circuit board requires soldering.Mostly soldering iron is used for making printed circuit boards, the solder which is made from metal alloy is heated up till its get melt and solidifies on electronic components terminal leads.
FPC is the abbreviation of Flexible Printed Circuit, also known as flexible printed circuit board, which is a printed circuit board made of flexible insulating substrate. As an important category of PCB, it has the advantages of high wiring density, thin thickness, light weight, and good bendability. Compared with other types of circuit boards, it is more in line with the development trend of intelligent and portable electronic products in the downstream industry. It is widely used in modern electronic products. FPC can be divided into four types: single-sided flexible board, double-sided flexible board, multi-layer flexible board and rigid-flexible board.