The bottom shield layer 10 and the top shield layer 30 each function as {TAIL ~ both a magnetic shield} and an electrode that supplies {HEAD ~ power} to the thin film magnetic head element 20 
The bottom shield layer 10 and the top shield layer 30 each function as { TAIL ~ both a magnetic shield } and an electrode that supplies { HEAD ~ power } to the thin film magnetic head element 20
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH