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