a BALL A1 PAD CORNER 84-Ball Chip Scale Package Ball Grid Array [CSP_BGA] (BC-84-1) Dimensions shown in millimeters A1 CORNER INDEX AREA 6.10 6.00 SQ 5.90 10 9 8 7 6 5 4 3 2 1 A 4.50 BSC SQ 0.50 BSC 0.80 0.75 0.70 TOP VIEW *1.40 1.26 1.11 DETAIL A BOTTOM VIEW DETAIL A 0.25 NOM 0.20 MIN SEATING PLANE 0.35 0.30 0.25 BALL DIAMETER *COMPLIANT WITH JEDEC STANDARDS MO-195-BC WITH THE EXCEPTION TO PACKAGE HEIGHT. 1.11 1.01 0.91 0.15 COPLANARITY 033106-A 1.50 BSC SQ B C D E F G H J K