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Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method

This paper studies the three dimensional (3D) simulation of fluid flows through the ball grid array (BGA) to replicate the real underfill encapsulation process. The effect of different solder bump arrangements of BGA on the flow front, pressure and velocity of the fluid is investigated. The flow fro...

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Detalles Bibliográficos
Autores principales: Abas, Aizat, Gan, Z. L., Ishak, M. H. H., Abdullah, M. Z., Khor, Soon Fuat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4959703/
https://www.ncbi.nlm.nih.gov/pubmed/27454872
http://dx.doi.org/10.1371/journal.pone.0159357
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author Abas, Aizat
Gan, Z. L.
Ishak, M. H. H.
Abdullah, M. Z.
Khor, Soon Fuat
author_facet Abas, Aizat
Gan, Z. L.
Ishak, M. H. H.
Abdullah, M. Z.
Khor, Soon Fuat
author_sort Abas, Aizat
collection PubMed
description This paper studies the three dimensional (3D) simulation of fluid flows through the ball grid array (BGA) to replicate the real underfill encapsulation process. The effect of different solder bump arrangements of BGA on the flow front, pressure and velocity of the fluid is investigated. The flow front, pressure and velocity for different time intervals are determined and analyzed for potential problems relating to solder bump damage. The simulation results from Lattice Boltzmann Method (LBM) code will be validated with experimental findings as well as the conventional Finite Volume Method (FVM) code to ensure highly accurate simulation setup. Based on the findings, good agreement can be seen between LBM and FVM simulations as well as the experimental observations. It was shown that only LBM is capable of capturing the micro-voids formation. This study also shows an increasing trend in fluid filling time for BGA with perimeter, middle empty and full orientations. The perimeter orientation has a higher pressure fluid at the middle region of BGA surface compared to middle empty and full orientation. This research would shed new light for a highly accurate simulation of encapsulation process using LBM and help to further increase the reliability of the package produced.
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spelling pubmed-49597032016-08-08 Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method Abas, Aizat Gan, Z. L. Ishak, M. H. H. Abdullah, M. Z. Khor, Soon Fuat PLoS One Research Article This paper studies the three dimensional (3D) simulation of fluid flows through the ball grid array (BGA) to replicate the real underfill encapsulation process. The effect of different solder bump arrangements of BGA on the flow front, pressure and velocity of the fluid is investigated. The flow front, pressure and velocity for different time intervals are determined and analyzed for potential problems relating to solder bump damage. The simulation results from Lattice Boltzmann Method (LBM) code will be validated with experimental findings as well as the conventional Finite Volume Method (FVM) code to ensure highly accurate simulation setup. Based on the findings, good agreement can be seen between LBM and FVM simulations as well as the experimental observations. It was shown that only LBM is capable of capturing the micro-voids formation. This study also shows an increasing trend in fluid filling time for BGA with perimeter, middle empty and full orientations. The perimeter orientation has a higher pressure fluid at the middle region of BGA surface compared to middle empty and full orientation. This research would shed new light for a highly accurate simulation of encapsulation process using LBM and help to further increase the reliability of the package produced. Public Library of Science 2016-07-25 /pmc/articles/PMC4959703/ /pubmed/27454872 http://dx.doi.org/10.1371/journal.pone.0159357 Text en © 2016 Abas et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Abas, Aizat
Gan, Z. L.
Ishak, M. H. H.
Abdullah, M. Z.
Khor, Soon Fuat
Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method
title Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method
title_full Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method
title_fullStr Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method
title_full_unstemmed Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method
title_short Lattice Boltzmann Method of Different BGA Orientations on I-Type Dispensing Method
title_sort lattice boltzmann method of different bga orientations on i-type dispensing method
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4959703/
https://www.ncbi.nlm.nih.gov/pubmed/27454872
http://dx.doi.org/10.1371/journal.pone.0159357
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