In one aspect, {HEAD ~ the present invention} is directed to {TAIL ~ a method} of manufacturing a PCB 
is directed to
In one aspect , { HEAD ~ the present invention } is directed to { TAIL ~ a method } of manufacturing a PCB
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH