Substrate Warpage analysis During Solger Reflow Process

Organic substrate is a composite panel consists of several materials such as BT core, copper, dielectric, solder resist and plugging material. As different material has different material property, when the organic substrate is exposed to thermal excursion in the manufacturing process, the substr...

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Main Author: Beh, Keh Shin
Format: Thesis
Published: 2004
Subjects:
Online Access:http://eprints.utm.my/6938/
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author Beh, Keh Shin
author_facet Beh, Keh Shin
author_sort Beh, Keh Shin
building UTeM Institutional Repository
collection Online Access
description Organic substrate is a composite panel consists of several materials such as BT core, copper, dielectric, solder resist and plugging material. As different material has different material property, when the organic substrate is exposed to thermal excursion in the manufacturing process, the substrate warps. In this project, both experimental and simulation study were carried out in order to have a better understanding on the substrate warpage behaviour during the solder reflow process. In the experimental analysis, substrate warpage throughout the solder reflow process was measured by using shadow moiré. Besides that, the thermally induced warpage due to the temperature rise was obtained by subtracting the measured warpage from the initial warpage. Finite element analysis was performed to predict the thermally induced warpage during the solder reflow process. Both results from the experiment and simulation were compared in order to validate the finite element models. A parametric study of the impact of design parameters and material properties on substrate warpage during the solder reflow process was performed. A total of 6 parameters have been investigated including material properties, copper volume, copper distribution, plated through hole (PTH) number, PTH array and substrate thickness. The results of these analyses have produced general guidelines which can be refer when designing the substrate and also selecting the substrate materials.
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format Thesis
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institution Universiti Teknologi Malaysia
institution_category Local University
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spelling utm-69382011-01-21T05:42:30Z http://eprints.utm.my/6938/ Substrate Warpage analysis During Solger Reflow Process Beh, Keh Shin TJ Mechanical engineering and machinery Organic substrate is a composite panel consists of several materials such as BT core, copper, dielectric, solder resist and plugging material. As different material has different material property, when the organic substrate is exposed to thermal excursion in the manufacturing process, the substrate warps. In this project, both experimental and simulation study were carried out in order to have a better understanding on the substrate warpage behaviour during the solder reflow process. In the experimental analysis, substrate warpage throughout the solder reflow process was measured by using shadow moiré. Besides that, the thermally induced warpage due to the temperature rise was obtained by subtracting the measured warpage from the initial warpage. Finite element analysis was performed to predict the thermally induced warpage during the solder reflow process. Both results from the experiment and simulation were compared in order to validate the finite element models. A parametric study of the impact of design parameters and material properties on substrate warpage during the solder reflow process was performed. A total of 6 parameters have been investigated including material properties, copper volume, copper distribution, plated through hole (PTH) number, PTH array and substrate thickness. The results of these analyses have produced general guidelines which can be refer when designing the substrate and also selecting the substrate materials. 2004 Thesis NonPeerReviewed Beh, Keh Shin (2004) Substrate Warpage analysis During Solger Reflow Process. Masters thesis, UTM Skudai, Mekanikal. http://sps.utm.my
spellingShingle TJ Mechanical engineering and machinery
Beh, Keh Shin
Substrate Warpage analysis During Solger Reflow Process
title Substrate Warpage analysis During Solger Reflow Process
title_full Substrate Warpage analysis During Solger Reflow Process
title_fullStr Substrate Warpage analysis During Solger Reflow Process
title_full_unstemmed Substrate Warpage analysis During Solger Reflow Process
title_short Substrate Warpage analysis During Solger Reflow Process
title_sort substrate warpage analysis during solger reflow process
topic TJ Mechanical engineering and machinery
url http://eprints.utm.my/6938/
http://eprints.utm.my/6938/