CMA3000 Datasheet, PDF (13/18 Pages) VTI technologies – 3-axis accelerometer

CMA3000 Assembly Instructions
5.8 Moisture sensitivity level (MSL) classification
The Moisture Sensitivity Level of the CMA3000 component is Level 2 according to the IPC/JEDEC
J-STD-020D. The part is delivered in a dry pack. The manufacturing floor time (out of bag) at the
customer’s end is 1 year. Maximum soldering peak temperature for the CMA3000 component is
260°C and maximum time above 255°C is 30sec, measured from the package body, as specified
in IPC/JEDEC J-STD-020D.
5.9 Inspection
The CMA3000 component's solder joint quality can be inspected with similar methods as any other
solder sphered SMD component. Optical and visual inspection can be done only partly, since the
solder spheres are located beneath the component. However, the visual inspection is
recommended for checking the proper alignment and level of the component. X-ray inspection is
recommended for checking voids, solder bridges, and short-circuits between the solder joints.
Cross-sectional analysis is also an approved method for inspection of metallurgical integrity and
wettability of the solder joints. An example of properly soldered CMA3000 component is illustrated
in Figure 10.
Figure 11. SEM-image of a properly soldered CMA3000 component.
VTI Technologies Oy
www.vti.fi
PRELIMINARY
Subject to changes
TN68
13/18
Rev.09