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PCB Design Rules

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Initially PCBs were designed manually by creating a photomask on a clear mylar sheet, usually at two or four times the true size. Starting from the schematic diagram the component pin pads were laid out on the mylar and then traces were routed to connect the pads. If you have many questions of PCB Design, please come here!

Community > Groups > PCB Design Rules > Can we calculate trace width of all layers easily?
Can we calculate trace width of all layers easily?
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I want to change the impedance of all layer the impedance at 50 ohm. Do I need to calculate trace width of all layers? Can you have some free software for recommend to help me calculate them easily?
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