What is printed circuit boards?

Printed circuit boards, also known as Printed circuit boards, are providers of electrical connections to electronic components.  

Printed circuit boards are often referred to as "PCB" rather than "PCB board".  

Its development has a history of more than 100 years;  Its design is mainly layout design;  The main advantage of using circuit board is to greatly reduce wiring and assembly errors, improve the level of automation and production labor rate.  

According to the number of PCB layers, it can be divided into single panel, double panel, four layer board, six layer board and other multi-layer PCB.  

Because the printed circuit board is not a general terminal product, so the definition of the name is slightly confused, for example: the mother board used by personal computers, called the motherboard, and can not be directly called the circuit board, although there is a circuit board in the host board, but not the same, so the evaluation of the industry when the two related but can not say the same.  Another example: because there are integrated circuit parts loaded on the circuit board, so the news media called him IC board, but in fact he is not equal to the printed circuit board.  We usually say the printed circuit board refers to the bare board - that is, no board components.