PCBWay 3rd PCB Design Contest

Dielectric Constant for specific Laminate type and thickness

Niklas Windh asked Dec 06,2019

I need to design a board with high speed signals like DDR3. I see that its possible to specify what type of laminate to be used. But when specifying the stack-up and the laminate thickness between signal and GND layer, the final Dielectric Constant based on the final thickness of the laminate will change.

How can I get information about what the final Dielectric Constant will be?

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