its 4 layer PCB with 275 micron via pad and 75 micron mechanical drill. I am not... | Hacker News

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openchip on July 10, 2015 | parent | context | favorite | on: Low-Power $5 FPGA Module

its 4 layer PCB with 275 micron via pad and 75 micron mechanical drill. I am not joking our PCB fab confirmed its doable technology for them.

tcas on July 10, 2015 [–]

I think many PCB fabs will say they can do it, the question is how much they will charge. 75 micron drill is crazy.

openchip on July 16, 2015 | [–]

PCB confirmed the "DIPSY easysolder PCB" deliver on 20th july, this is special downgraded version of the PCB, 2 layers, drill 0.15, trace space 50 micron..

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