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Defining Copper thickness

tltoth over 15 years ago

Someone would explain me please, why 1.2 mils is the default copper thickness in the xsection dialog.

1.2mils = 0.03048mm

1oz copper is 35um thick that is 0,000035mm -> 0.001378mils

1.2mils 1000 times more then this.

???

Thanks

tltoth over 15 years ago

Sorry. I made a big mistake
35um is 1.3778 mils
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redwire over 15 years ago

And after processing the final thickness for 1oz internal layers is around 1.20-1.25 mils. External layers can be 2.0-2.2 mils after plating when using 0.5oz foil with 1oz plating.
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