Hi,
I am designing a board with a eMMC (from the JLCPCB parts list ([https://jlcpcb.com/partdetail/Samsung-KLMAG1JETDB041/C499919](https://jlcpcb.com/partdetail/Samsung-KLMAG1JETDB041/C499919)) and it has (like the others) a 0.5mm/19.7mills pitch. Therefore I need a clearance of 0.082mm/3.2 mils and a 0.082mm/3.2 mils trace to fanout. I contacted the support, but the response is not very clear. I also doubt if the lady understands me. The min. Pad is 0.25mm/9.85mils, so that gives me 0.25mm/9.8 mils of space between the pads. The proposed clearance is 0.089mm/3.5 mils and min trace 0.089mm/3.5 mils. That makes 3x3.5= 10.5 mils (0.267mm). Anybody experience with them?



