Peridynamic wetness approach for moisture concentration analysis in electronic packages

C. Diyaroglu, S. Oterkus, E. Oterkus, E. Madenci, S. Han, Y. Hwang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Within the finite element framework, a commonly accepted indirect approach employs the concept of normalized concentration to compute moisture concentration. It is referred to as “wetness” approach. If the saturated concentration value is not dependent on temperature or time, the wetness equation is analogous to the standard diffusion equation whose solution can be constructed by using any commercial finite element analysis software such as ANSYS. However, the time dependency of saturated concentration requires special treatment under temperature dependent environmental conditions such as reflow process. As a result, the wetness equation is not directly analogous to the standard diffusion equation. This study presents the peridynamic wetness modeling for time dependent saturated concentration for computation of moisture concentration in electronic packages. It is computationally efficient as well as easy to implement without any iterations in each time step. Numerical results concerning the one-dimensional analysis illustrate the accuracy of this approach. Moisture concentration calculation in a three-dimensional electronic package configuration with many different material layers demonstrates its robustness.
LanguageEnglish
Pages103-111
Number of pages9
JournalMicroelectronics Reliability
Volume70
Early online date24 Jan 2017
DOIs
Publication statusPublished - 31 Mar 2017

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moisture
moisture content
Moisture
electronics
Finite element method
Temperature
dimensional analysis
iteration
computer programs
temperature
configurations

Keywords

  • concentration
  • moisture
  • peridynamics
  • wetness
  • finite element
  • robustness

Cite this

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title = "Peridynamic wetness approach for moisture concentration analysis in electronic packages",
abstract = "Within the finite element framework, a commonly accepted indirect approach employs the concept of normalized concentration to compute moisture concentration. It is referred to as “wetness” approach. If the saturated concentration value is not dependent on temperature or time, the wetness equation is analogous to the standard diffusion equation whose solution can be constructed by using any commercial finite element analysis software such as ANSYS. However, the time dependency of saturated concentration requires special treatment under temperature dependent environmental conditions such as reflow process. As a result, the wetness equation is not directly analogous to the standard diffusion equation. This study presents the peridynamic wetness modeling for time dependent saturated concentration for computation of moisture concentration in electronic packages. It is computationally efficient as well as easy to implement without any iterations in each time step. Numerical results concerning the one-dimensional analysis illustrate the accuracy of this approach. Moisture concentration calculation in a three-dimensional electronic package configuration with many different material layers demonstrates its robustness.",
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Peridynamic wetness approach for moisture concentration analysis in electronic packages. / Diyaroglu, C.; Oterkus, S.; Oterkus, E.; Madenci, E.; Han, S.; Hwang, Y.

In: Microelectronics Reliability, Vol. 70, 31.03.2017, p. 103-111.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Peridynamic wetness approach for moisture concentration analysis in electronic packages

AU - Diyaroglu, C.

AU - Oterkus, S.

AU - Oterkus, E.

AU - Madenci, E.

AU - Han, S.

AU - Hwang, Y.

PY - 2017/3/31

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AB - Within the finite element framework, a commonly accepted indirect approach employs the concept of normalized concentration to compute moisture concentration. It is referred to as “wetness” approach. If the saturated concentration value is not dependent on temperature or time, the wetness equation is analogous to the standard diffusion equation whose solution can be constructed by using any commercial finite element analysis software such as ANSYS. However, the time dependency of saturated concentration requires special treatment under temperature dependent environmental conditions such as reflow process. As a result, the wetness equation is not directly analogous to the standard diffusion equation. This study presents the peridynamic wetness modeling for time dependent saturated concentration for computation of moisture concentration in electronic packages. It is computationally efficient as well as easy to implement without any iterations in each time step. Numerical results concerning the one-dimensional analysis illustrate the accuracy of this approach. Moisture concentration calculation in a three-dimensional electronic package configuration with many different material layers demonstrates its robustness.

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