{HEAD ~ The packages} which have {TAIL ~ connecting pins} are mounted on support grid which preferably act as a heat shunt, and are stacked and linked to each other with a resin coating  
have
{ HEAD ~ The packages } which have { TAIL ~ connecting pins } are mounted on support grid which preferably act as a heat shunt , and are stacked and linked to each other with a resin coating
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH