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