Hello ; About the JLCPCB checking system capabilities : * Hole to hole clearance : 0.5mm * Via to Via clearance : 0.2mm * Pad to Pad clearance : 0.152mm * Via to Track : 0.254mm * Pad to Track : 0.54mm > Please not also that the Minimum trace width and spacing for Inner layer and Outer layer (1oz) is 5mil (0.127mm) Would you please find more details through the following link : [https://jlcpcb.com/capabilities/Capabilities](https://jlcpcb.com/capabilities/Capabilities)

@JLCPCBsupport Thank you, but you didn’t answer the question. I have motherboards manufactured on the JLPCB, on which VIA ito VIA 0.152mm, and they work perfectly. I even hold one in my hands right now. Why are you talking about 0.2mm if you can do less without any problems?  Also, you did not say anything about 0.3 / 0.45 VIA. In my last order they were made without problems and questions. Why are you writing 0.6mm then? 0.45 and 0.60 are VERY big differences for small boards.

Hello , Sorry for this .  The " Pad to Track ≥0.54mm " is wrong . It is waitting to change . The  actual is  Pad to Track ≥0.15mm  , 0.17mm is better .  :)

@gemer.rus Soon we will back to you with the link of our official updated capabilities, until that you can ask as in the forum about all your requirements. Thank you for your comment and let us know if we can further assist you.

@JLCPCBsupport I got my printed circuit boards, 0.3 / 0.45 holes are made perfectly. I think you should write that this is possible for 2 layers. 

Hello ; I'm happy to see you again here with a positive feedback and great result, good design so keep it up and we will update the two layers capabilities ASAP