Category:PCB 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!

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PCB impedance calculator Reply 2016-07-30 14:25:39
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carlos.pinto5

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I have to make a report for 4 different data bytes DDR3, making sure each signal bit trace has same impedance.But I find doing it manually will spend lot of time. Please give me some suggestions about which tool I can use to calculate overall impedance.
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charlene

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Thanks for marvelous posting.
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