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Do you know what the appearance of the printed circuit board is?

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Do you know what the appearance of the printed circuit board is?

Release date:2017-06-27 Author: admin Click:

Do you know what the appearance of the printed circuit board is?

Bare boards (no parts on top) are also often referred to as "printed circuit board printed circuit boards (PWB)". The board itself is made of insulating insulation, and is not easy to bend the material made in the surface can see the small line material is copper foil, the original copper foil is covered in the entire board, and in the manufacturing process part of the Etching treatment, leaving the part of the network into a small line. These lines are referred to as wires (conductor patterns) or wiring, and are used to provide circuit connections for parts on the PCB.

Usually the color of the PCB is green or brown, which is the solder mask (solder mask) color. Is insulated protective layer, can protect the copper wire, but also to prevent short-circuit caused by wave welding, and save the amount of solder. Welding layer will be printed on a layer of screen printing (silk screen). Usually on this will be printed on the text and symbols (mostly white), to mark the parts on the board position. Also known as the icon face (legend).

In the final product, it will be installed on the integrated circuit, transistors, diodes, passive components (such as: resistors, capacitors, connectors, etc.). And other various electronic components through the wire connection, can form an electronic signal link and should be functional.


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