Advanced packaging solder paste

Electronic devices are becoming smaller in size and more chip functions are being integrated into even smaller package systems. The market is also increasingly demanding fine powders for soldering processes. But the continuing trend towards compact size and 3D integrated modules is further inc...

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Bibliographic Details
Main Author: Zhuang, Guanqing
Other Authors: Long Yi
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/157587
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author Zhuang, Guanqing
author2 Long Yi
author_facet Long Yi
Zhuang, Guanqing
author_sort Zhuang, Guanqing
collection NTU
description Electronic devices are becoming smaller in size and more chip functions are being integrated into even smaller package systems. The market is also increasingly demanding fine powders for soldering processes. But the continuing trend towards compact size and 3D integrated modules is further increasing the complexity of packaging technology. As the size of electronic devices decreases, the size of the solder powder used in the soldering process also needs to be smaller. However, this reduction in solder powder size leads to a significant increase in overall surface area per unit volume. This makes the solder paste easily oxidised and the performance shown during the soldering process can be significantly reduced. The objective of this project is to investigate how to develop a high-performance solder paste using finer powders. This was done by gaining an in-depth understanding of the principles of Surface Mount Technology (SMT), the role of each component in the solder paste, the rheology performance of the paste and the factors that affect the performance of the paste. Each experiment was carefully designed to ensure safety. After conducting numerous experiments, it has been proven that a high-performance solder paste can be produced with finer powders. This requires consideration of compatibility of the flux and solder powder, the viscosity and corrosiveness of the flux, the melting temperature and stability of the flux, and the weight ratio of the solder powder to the flux to develop a high-performance solder paste.
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spelling ntu-10356/1575872022-05-22T05:31:22Z Advanced packaging solder paste Zhuang, Guanqing Long Yi School of Materials Science and Engineering Heraeus Materials Singapore Pte. Ltd. LongYi@ntu.edu.sg Engineering::Materials Electronic devices are becoming smaller in size and more chip functions are being integrated into even smaller package systems. The market is also increasingly demanding fine powders for soldering processes. But the continuing trend towards compact size and 3D integrated modules is further increasing the complexity of packaging technology. As the size of electronic devices decreases, the size of the solder powder used in the soldering process also needs to be smaller. However, this reduction in solder powder size leads to a significant increase in overall surface area per unit volume. This makes the solder paste easily oxidised and the performance shown during the soldering process can be significantly reduced. The objective of this project is to investigate how to develop a high-performance solder paste using finer powders. This was done by gaining an in-depth understanding of the principles of Surface Mount Technology (SMT), the role of each component in the solder paste, the rheology performance of the paste and the factors that affect the performance of the paste. Each experiment was carefully designed to ensure safety. After conducting numerous experiments, it has been proven that a high-performance solder paste can be produced with finer powders. This requires consideration of compatibility of the flux and solder powder, the viscosity and corrosiveness of the flux, the melting temperature and stability of the flux, and the weight ratio of the solder powder to the flux to develop a high-performance solder paste. Bachelor of Engineering (Materials Engineering) 2022-05-21T05:44:27Z 2022-05-21T05:44:27Z 2022 Final Year Project (FYP) Zhuang, G. (2022). Advanced packaging solder paste. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/157587 https://hdl.handle.net/10356/157587 en application/pdf Nanyang Technological University
spellingShingle Engineering::Materials
Zhuang, Guanqing
Advanced packaging solder paste
title Advanced packaging solder paste
title_full Advanced packaging solder paste
title_fullStr Advanced packaging solder paste
title_full_unstemmed Advanced packaging solder paste
title_short Advanced packaging solder paste
title_sort advanced packaging solder paste
topic Engineering::Materials
url https://hdl.handle.net/10356/157587
work_keys_str_mv AT zhuangguanqing advancedpackagingsolderpaste