For conventional designs, these materials are usually rejected as unsuitable for {HEAD ~ use} in {TAIL ~ multilayer boards} because of poor temperature, solderability or lamination performance 
in
For conventional designs , these materials are usually rejected as unsuitable for { HEAD ~ use } in { TAIL ~ multilayer boards } because of poor temperature , solderability or lamination performance
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH