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  • What is PCB
     
    Date :2010-4-28

       

    Many people have heard about "PCB",But What does it mean? Actually very simple it's printed circuit board. It appears almost every electronic device in them. If a certain kind of devices with electronic components, which are fitted in a different size of PCB's. In addition to a variety of small parts is fixed, PCB's main function is to provide on top of all the electrical connections between components. As electronic devices become increasingly complex, requiring more and more natural parts, PCB and components on top of the line more and more intense the. Bare board (on top of no spare parts) are often referred to as "Printed Wiring Board (PWB)". Board itself, the substrate is insulated and heat insulation, the materials are not easy to bend produced. The surface can see the small line material is copper, copper foil is covered in the original board, and in most of the manufacturing process is etched away, leaving to become part of a network of small lines. These lines are called wire, or wiring, and components used to provide electrical connections on the PCB.


    PCB color is usually green or brown, which is painted the color of solder mask. Insulating protective layer can protect the copper, you can not prevent the parts being welded to the right place. Will be printed in the solder mask layer on the surface layer of screen printing. This will usually be printed on top of text and symbols (mostly white) to mark out the various components on the board position. Screen-printing surface is also called icon surface.


    the substrate is insulated and heat insulation, the materials are not easy to bend produced. The surface can see the small line material is copper, copper foil is covered in the original board, and in most of the manufacturing process is etched away, leaving to become part of a network of small lines. These lines are called wire, or wiring, and components used to provide electrical connections on the PCB. 

     

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