{TAIL ~ The reading structure} is external to the pixel array but may still be fabricated on the same CMOS chip as {HEAD ~ the pixel array} 
{ TAIL ~ The reading structure } is external to the pixel array but may still be fabricated on the same CMOS chip as { HEAD ~ the pixel array }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD