a 16-Ball Wafer Level Chip Scale Package [WLCSP] (CB-16-6) Dimensions shown in millimeters 0.66 0.60 0.54 1.60 1.56 SQ 1.52 SEATING PLANE 4 3 2 1 A BALL 1 IDENTIFIER 0.28 0.26 0.24 B 0.40 REF C D 0.43 0.40 0.37 0.05 NOM COPLANARITY 0.23 0.20 0.17 BOTTOM VIEW (BALL SIDE UP) 102108-A TOP VIEW (BALL SIDE DOWN)