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PCB Layout, EMC, and Signal Integrity
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Topic starter
27/06/2026 10:10 pm
Stackup choices are tradeoffs, not status symbols. The right answer depends on return-current control, interface speed, power density, EMC risk, mechanical envelope, and manufacturing constraints.
If you are asking whether a design can stay on two layers, say what the fastest edges are, how many supplies you have, and what connectors or cables leave the board. That usually determines the answer faster than ideology does.