Optimization Of Laser Soldering Parameters On Passive Devices
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Date
2022-07-01
Authors
Ahmad Nadzri, Faiz Farhan
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Laser soldering is a non-contact process that is important in soldering
technology for miniature components because it can emit a controlled heating from
laser beam to a specific location of solder joint and this process also can prevent
damaging other components on electronic devices. The process parameter of laser
soldering also important to be known which is laser power, process time and shape of
laser beam to produce a consistent soldering result. However, in this research study
will focus on VOF model in ANSYS Fluent software and Steady State Heating in
ANSYS Mechanical because the process parameter of laser soldering has been given
by Western Digital. The main goal of this study is to optimize the parameters that
affect the effectiveness in laser soldering process on passive devices. The parameter
which is laser beam distance and solder type can affect the formation of fillet shape,
velocity, and pressure of solder. Also, the effects of heat radiation from the laser beam
are studied. Numerical simulation has been conducted to identify the suitable laser
beam distance and the selection of solder type that can affect in solder joint reliability
such as void formation. Thus, the parameters in the soldering process needed to be
controlled to produce a good quality, long lifespan, and more reliable solder joint. The
results obtained from the simulation can be visualise the flow of solder at the end of
reflow process in contour of volume fraction and temperature. The visualisation results
can show the details trajectory of solder as it undergoes the thermal reflow. Besides,
good relation can be seen between the simulation results obtain and validation from
IPC standard. The study of VOF model showed the usable of simulation approach to
simulate the process of laser soldering that can produce a good results of solder joint.