nRF9160 Blind Vias

[Navid]

Hi. I'm designing a board like Thingy:91 for sensor driving based on nRF9160. In Thingy:91 Hardware files, the PCB has many blind vias. The production of HDI PCBs is very expensive so is there any necessity to use blind vias for ground planes? Can I use through-hole vias instead?

[ketiljo]

No need for blind vias. Just make sure the grounding is good, i.e you use enough vias. 

[Navid]

Thanks