removing the dielectric layer in the area of the opening of {TAIL ~ the mask} to obtain {HEAD ~ the recess} 
removing the dielectric layer in the area of the opening of { TAIL ~ the mask } to obtain { HEAD ~ the recess }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD