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