A stack is cut out so that the pins on the packages and {HEAD ~ one edge} of {TAIL ~ the grids} are flush with faces of the stack  
of
A stack is cut out so that the pins on the packages and { HEAD ~ one edge } of { TAIL ~ the grids } are flush with faces of the stack
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 OTH OTH OTH OTH OTH OTH OTH OTH