{TAIL ~ This intentionally formed irregularity} prevents {HEAD ~ the wafer} from warping and thus the resulting wafer will scarcely have a bow 
{ TAIL ~ This intentionally formed irregularity } prevents { HEAD ~ the wafer } from warping and thus the resulting wafer will scarcely have a bow
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH