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Classification Of Flexible Printed Circuit Boards Jan 16, 2017

① single-sided flexible board is the lowest cost, when the performance requirements of the printed circuit board is not high. Single-sided wiring, you should use single-sided flexible board. Which has a layer of chemically etched conductive pattern and the conductive pattern on the surface of the flexible insulating substrate is a rolled copper foil. The insulating substrate may be polyimide, polyethylene terephthalate, aramid fiber ester, and polyvinyl chloride.

② double-sided flexible board is insulating the base film on both sides of a layer of etching made of conductive patterns. The metallization hole connects the two sides of the insulating material to form a conductive path to meet the flexibility design and use function. The cover film protects single and double-sided wires and indicates where the component is located.

③ multi-layer flexible board is three or more layers of single-sided or double-sided flexible circuit laminated together, by drilling larvae L, the formation of metal plated holes in the formation of conductive layers in different layers. This eliminates the need for complex welding processes. Multilayer circuits have vast functional differences in higher reliability, better thermal conductivity and more convenient assembly performance. In the design of the layout, should take into account the assembly size, layers and flexibility of the interaction.


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