2017年7月27日星期四

PCB CIRCUIT BOARDS – IMPORTANT DIFFERENCES BETWEEN FLEXIBLE CIRCUIT BOARDS AND FLEXIBLE CIRCUIT BOARDS

1) the three-dimensional space of a flexible printed circuit is important because the application of flex and flexibility can save space and reduce the board level.
2) compared with rigid plates, flexible plates require less tolerance and allow greater tolerance.  rigid flex circuits
3) because the wings can be bent, they are designed to be a little longer than required.
In order to minimize circuit cost, the following design techniques should be considered:
1) always consider how the circuit is assembled on the panel.
2) circuit should be small, should consider using a series of small circuit instead of a large circuit.
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 rigid flex circuits
3) follow the recommended use tolerances at all times.
4) design the areas where the elements are bonded only where necessary.
5) if the circuit has only a few layers, then the use of an enhancement board is much cheaper than that of a rigid flexible printed circuit.
6) a 0.0001 in binder shall be used on each of the oz cladding materials (including copper plated).
7) circuits that make unshielded pads without covering are sometimes cheaper.

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