Moisture diffusion modeling – A critical review |
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| Affiliation: | 1. Nanyang Technological University, Energy Research Institute, Singapore;2. State University of New York at Binghamton, Department of Mechanical Engineering, United States;1. System Packaging and Integration Research Center, Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. National Center for Advanced Packaging, Wuxi 214135, China;1. Shanghai Key Laboratory of Multidimensional Information Processing, Department of Electrical Engineering, East China Normal University, Shanghai, 200241;2. Tsinghua National Laboratory for Information Science and Technology, Institute of Microelectronics, Tsinghua University, Beijing 100084, China;1. School of Electrical and Computer Engineering, University of Tehran, College of Engineering, Tehran, Iran;2. Department of Electrical and Computer Engineering, San Francisco State University, CA, USA;1. Microelectronics Research, Group Faculty of Information Technology and Electrical Engineering, University of Oulu, 90014, Finland;2. Tampere University of Applied Sciences, Finland;3. Electronics and Communications Engineering, Tampere University of Technology, Finland |
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| Abstract: | Techniques for enforcing the continuity of solute field in heterogeneous solvent under the conditions of steady temperature-humidity, steady temperature but dynamic humidity, and dynamic temperature are reviewed. The continuity of the wetness technique is justified on the principle of equality of chemical potential. The partial pressure technique is one of the many possible forms of pseudo techniques that can be derived from the wetness technique. The direct concentration technique is fundamentally flaw. The peridynamic technique in its original form is restricted to homogeneous solvent. The saturated concentration of solute in solvents decreases with increasing temperature; the rate of change with temperature differs between solvents and this leads to discontinuity of wetness along the interface of solvents. Continuity of wetness at the interface may be enforced using the intervention technique, the internal source technique, or the explicit finite difference scheme. These three techniques have been mutually validated in a reported study. |
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