Connections between the packages themselves, and between the packages and stack connecting pads, are made on {HEAD ~ the faces} of {TAIL ~ the stack} 
of
Connections between the packages themselves , and between the packages and stack connecting pads , are made on { HEAD ~ the faces } of { TAIL ~ the stack }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL