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