Because the protective sheet is not cut by dicing, no scraps of the protective sheet is produced, thereby preventing {HEAD ~ contamination} to {TAIL ~ the chips} 
to
Because the protective sheet is not cut by dicing , no scraps of the protective sheet is produced , thereby preventing { HEAD ~ contamination } to { TAIL ~ the chips }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL