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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 > When going from two to four layer pcb, Will there be any pitfalls?
When going from two to four layer pcb, Will there be any pitfalls?
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Aaron Burnie

I have some two layer boards, but I want to design more layers pcb now. Can you suggest any pitfalls to be aware of for my first attempt, the price of four layers is more expensive than 2 layers,so I'm hoping to not waste the 2 layers pcb.
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Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

marcolastri

For combining the 2 layer boards to 4 layer boards, you need to consider the stack-up carefully.

FRASER PHILLIPS

If the pcb you need are running very large currents, tracks on the inner layers have higher thermal resistance to the ambient air, so the pcb need to be designed wider for the same ampacity.

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