About the periphery of each pad grid array 11 is {TAIL ~ a plurality} of {HEAD ~ side pads} 13 and corner pads 14 
About the periphery of each pad grid array 11 is { TAIL ~ a plurality } of { HEAD ~ side pads } 13 and corner pads 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH