6-Ball Wafer Level Chip Scale Package [WLCSP] (CB-6-7) Dimensions shown in millimeters a 0.945 0.905 0.865 BALL A1 IDENTIFIER 0.645 0.600 0.555 0.415 0.400 0.385 SEATING PLANE 0.287 0.267 0.247 1.425 1.385 1.345 2 1 A 0.80 BSC B 0.40 BSC C 0.230 0.200 0.170 0.05 NOM COPLANARITY 0.40 BSC BOTTOM VIEW (BALL SIDE UP) 081709-A TOP VIEW (BALL SIDE DOWN)