Current in the sensor is confined to {HEAD ~ regions} close to the air bearing surface by an insulator layer to enhance {TAIL ~ reader sensitivity} 
Current in the sensor is confined to { HEAD ~ regions } close to the air bearing surface by an insulator layer to enhance { TAIL ~ reader sensitivity }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL