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