
6 Package Dimensions
6 Package Dimensions
20-BALL WLCSP (2.25 mm x 2.0 mm Body) Package Drawing
A
B
C
D
1
2
3
4
5
Symbol
A
S
A1
E
D
SE
SD
E1
D1
e
b
n
Table 6-1. WLCSP Package Dimension
Description
Total thickness
Wafer thickness
Standoff
Body size
X
Y
Ball/bump pitch
X
Y
Edge ball center-to-center X
Y
Pitch
Ball diameter
Ball/bump width
Ball/bump count
Dimensions
0.495 ±0.04
0.305 ±0.025
0.190 ±0.015
2
2.25
0.2 BSC1
— BSC
1.2 BSC
1.6 BSC
0.4 BSC
0.25
0.216–0.324
20
24
DS1057F1