A second region includes {TAIL ~ second metallic layers} and {HEAD ~ vias} provided within the second laminate 
A second region includes { TAIL ~ second metallic layers } and { HEAD ~ vias } provided within the second laminate
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH