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multi layer pcb

Multi-layer boards have one or multiple conductor patterns inside the board, which increases the area available for wiring. By laminating or gluing several double-sided circuit boards together with insulating layers in between.

Description

Multi-layer boards have one or multiple conductor patterns inside the board, which increases the area available for wiring. By laminating or gluing several double-sided circuit boards together with insulating layers in between.

Multilayer boards have at least three layers of conductors, two of which are located on the outer surface, and one of which is combined with an insulating board.

The electrical connector is commonly completed through plated through-holes, which are transverse to the boards. Multi-layer boards represent the most complex type of printed circuit boards.


Advantages: 

-High assembly density, small size, light weight due to the high assembly density, the connection between the components (including components) is reduced, so the reliability is improved.

-The number of wiring layers can be increased to increase the design flexibility. Can form a circuit with a certain impedance.

-High speed transmission circuit can be formed; Circuit and magnetic circuit shielding layer can be set up, and metal core heat dissipation layer can be set up to meet the needs of shielding, heat dissipation and other special functions.

-Multi-layer boards have simple installation and high reliability.


multi layer rigid pcb circuit board .jpg


Their cost is relatively high, owing to the complexity of the manufacturing process, lower production yields and difficulty of re-working on them. Hence,multilayer boards are widely used in professional electronic like computers and military equipment.


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