Blind and buried vias in 4-layer boards?

Seeed Services Fusion PCB/ PCBA Services
#1

Gents,

What are the limitations/requirements for blind or buried vias on 4-layer boards? I have not been able to find any info on what Fusion can handle.

Regards,

Clint

#2

They aren’t available!

#3

yes, we don’t accept blind and buried vias

#4

yes, we don’t accept blind and buried vias

#5

Ok. So through vias only on 4-layers boards?

#6

That’s what you’ve been told!