A protective sheet is fixed to a jig, and regions of {HEAD ~ the protective sheet} corresponding to {TAIL ~ regions} where dicing cut is to be performed are removed to form grooves 
corresponding to
A protective sheet is fixed to a jig , and regions of { HEAD ~ the protective sheet } corresponding to { TAIL ~ regions } where dicing cut is to be performed are removed to form grooves
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH