{TAIL ~ An isolation dielectric IPO layer} 26 is formed over {HEAD ~ the first storage plane layer} 20 
{ TAIL ~ An isolation dielectric IPO layer } 26 is formed over { HEAD ~ the first storage plane layer } 20
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH