More particularly, the present invention relates to apparatus and {HEAD ~ method} for verifying {TAIL ~ the coplanarity} of a ball grid array on a semiconductor device 
More particularly , the present invention relates to apparatus and { HEAD ~ method } for verifying { TAIL ~ the coplanarity } of a ball grid array on a semiconductor device
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH