An example system may include a processor, a light source, a mask, a substrate, {TAIL ~ a photoresist layer}, and {HEAD ~ a graphene layer} 
An example system may include a processor , a light source , a mask , a substrate , { TAIL ~ a photoresist layer } , and { HEAD ~ a graphene layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD