144-Ball Chip Scale Package Ball Grid Array [CSP_BGA] (BC-144-7) Dimensions shown in millimeters A1 BALL CORNER 10.10 10.00 SQ 9.90 12 11 10 9 8 7 6 5 4 3 2 A1 BALL CORNER 1 A B C D 8.80 SQ E F G H 0.80 J K L M TOP VIEW 0.60 REF BOTTOM VIEW DETAIL A 1.70 MAX DETAIL A 1.00 MIN 0.32 MIN 0.50 COPLANARITY 0.45 0.12 0.40 BALL DIAMETER COMPLIANT TO JEDEC STANDARDS MO-275-EEAB-1. 11-18-2011-A SEATING PLANE