Printed circuit board, also known as the printed circuit board, printed circuit board, referred to as printed circuit board, often use the abbreviation PCB (Printedcircuitboard) or write (PWB Printedwireboard), by an insulated board as base material, cut into a certain size, the at least accompanied by a conductive pattern and cloth with holes (such as hole components, fastener holes, metallized hole), used to replace the previous device electronic components of the chassis and achieve the mutual connection between the electronic components. Because the board is made of electronic printing, it is called the "printed circuit board".
According to the circuit board layer can be divided into a single panel, double-sided board, four board, six board and other multilayer circuit board.

Due to the printed circuit board is not a general terminal product, so slight confusion in the definition of the name. For example: personal computer motherboard, said board, can not be directly referred for the circuit board, although the main board circuit board, but is not the same. Therefore, the assessment industry when they are related but can't say the same. Another example: because there are integrated circuit parts loaded on the board, so the news media called him IC board, but in essence, he is not equivalent to the printed circuit board. The printed circuit board we usually refers to the circuit board that no bare board components.