A second thin film polysilicon layer comprising {HEAD ~ a storage plane} over {TAIL ~ the isolation dielectric layer} 
A second thin film polysilicon layer comprising { HEAD ~ a storage plane } over { TAIL ~ the isolation dielectric layer }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL