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