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Which factors define the trace width on PCB

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Traces are used to connect the components, but how wide should the traces be?
The trace width for different nets depends on the below three possible factors:

1.Manufacturability:
Traces cannot be too thin,otherwise,the board will be unmanufacturable. The trace width need much larger than the minimum value of the PCB factories can produce.

2. Current:
The current that carried in the traces will determine the minimum width to prevent the trace from overheating. When the current is higher, the trace should be wider.

3. Impedance:
The high-speed digital signals or RF signals need a specific trace width to meet the required impedance value. But this doesn't apply to all signals or nets, so you don't need enforce impedance control on each net in your PCB board design rules.

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