TiWi-uB2 Module
DATASHEET
The information in this document is subject to change without notice.
330-0100-R1.4 Copyright © 2012-2016 LSR Page 21 of 35
CLEANING
In general, cleaning the populated modules is
strongly discouraged. Residuals under the module
cannot be easily removed with any cleaning
process.
Cleaning with water can lead to capillary effects
where water is absorbed into the gap between
the host board and the module. The
combination of soldering flux residuals and
encapsulated water could lead to short circuits
between neighboring pads. Water could also
damage any stickers or labels.
Cleaning with alcohol or a similar organic
solvent will likely flood soldering flux residuals
into the RF shield, which is not accessible for
post-washing inspection. The solvent could also
damage any stickers or labels.
Ultrasonic cleaning could damage the module
permanently.
OPTICAL INSPECTION
After soldering the Module to the host board,
consider optical inspection to check the following:
Proper alignment and centering of the module
over the pads.
Proper solder joints on all pads.
Excessive solder or contacts to neighboring
pads, or vias.
REWORK
The module can be unsoldered from the host board
if the Moisture Sensitivity Level (MSL) requirements
are met as described in this datasheet.
Never attempt a rework on the module
itself, e.g. replacing individual
components. Such actions will terminate
warranty coverage.
SHIPPING, HANDLING, AND STORAGE
Shipping
Bulk orders of the TiWi-uB2 modules are delivered
in trays of 416 (13 x 32) or reels of 2,000.
Handling
The TiWi-uB2 modules contain a highly sensitive
electronic circuitry. Handling without proper ESD
protection may damage the module permanently.
Moisture Sensitivity Level (MSL)
Per J-STD-020, devices rated as MSL 4 and not
stored in a sealed bag with desiccant pack should be
baked prior to use.
Devices are packaged in a Moisture Barrier Bag with
a desiccant pack and Humidity Indicator Card (HIC).
Devices that will be subjected to reflow should
reference the HIC and J-STD-033 to determine if
baking is required.
If baking is required, refer to J-STD-033 for bake
procedure.
Storage
Per J-STD-033, the shelf life of devices in a Moisture
Barrier Bag is 12 months at <40ºC and <90% room
humidity (RH).
Do not store in salty air or in an environment with a
high concentration of corrosive gas, such as Cl2,
H2S, NH3, SO2, or NOX.
Do not store in direct sunlight.
The product should not be subject to excessive
mechanical shock.