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openvizsla / ov_ftdi

FT2232H-based USB sniffer
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Question about 3.3 changes #49

Closed pk-mdt closed 3 years ago

pk-mdt commented 3 years ago

How critical is the copper thickness on the internal layers? I wanted to do a prototype run based on these changes but small volume and the 1 oz internal seems to be an issue right now. I can get JLCPCB compliant with all the other specifications except 1 oz on the inner layers.

laf0rge commented 3 years ago

sorry for the late response, we don't really use the issue tracker as discussion forum much.

I don't think it matters much if you have lower copper thickness. The only critical part is the space between top and inner layer, as that is relevant to the impedance of the USB traces.