User guide

5
CS42L73
2. PACKAGE DIMENSIONS
2.1 WLCSP Package
64 Ball WLCSP (3.44 x 3.44 mm Body) Package Drawing
MILLIMETERS
Dim MIN NOM MAX
A 0.450 0.505 0.560
A1 0.170 0.200 0.230 A2 0.280 0.305 0.330
M - 2.800 -
N - 2.800 -
b 0.230 0.260 0.290
c - 0.320 -
d - 0.320 - e - 0.400 -
X 3.415 3.440 3.465 Y 3.415 3.440 3.465
Controlling Dimension is Millimeters.
Table 1. WLCSP Package Dimensions
Notes:
1. Controlling dimensions are in millimeters. 2. Dimensioning and tolerances per ASME Y 14.5M-1994. 3. Dimension “b” applies to the solder sphere diameter and is
measured at the midpoint between the package body and the seating plane.
4. Unless otherwise specified, tolerances are: Linear ±0.05 mm,
Angular ±1°.
e
e
A2
Ball A1
Location
Indicator
X
Y
BUMP SIDESIDE VIEW
A1
b
N
M
d
c
WAFER BACK SIDE
Ball A1
Location Indicator
(Seen Through Package)
Ball A1
A