Photosensitive material is provided over a portion of {TAIL ~ the insulating material layer} which overlies a portion of {HEAD ~ the second well region} 
Photosensitive material is provided over a portion of { TAIL ~ the insulating material layer } which overlies a portion of { HEAD ~ the second well region }
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 HEAD HEAD HEAD