Electrical and Thermal Flows across Parallel Plates: An Analysis of MEMS Switch Contact Systems - Couverture souple

Haj Mohammad Jafar, Reza; Dryden, John R.

 
9783659193088: Electrical and Thermal Flows across Parallel Plates: An Analysis of MEMS Switch Contact Systems
Couverture souple
ISBN 10 : 3659193089 ISBN 13 : 9783659193088
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

With the recent progress of MEMS technology, the development of MEMS devices for radio frequency (RF) applications has been growing rapidly. RF MEMS devices have a broad range of potential applications in wireless communication, space, instrumentation, etc. The main failure analysis issue for RF MEMS metal contacting switches focuses on contact metallurgy. During passage of current through the switch contact, some portions of the interface may melt and weld due to high temperature and a molten metal might be splashed from the surfaces, which leads to device failure. In this study, a mathematical treatment of the general problem of electrical contacts and heating related to MEMS switch contacts is developed. The spatial distribution of the potential, the current and the temperature in a special case of electrical contact between two gold bodies whose thermal and electrical conductivities vary with temperature is analyzed, and an explanation for the collapse of gold contact system before reaching the melting point is given. For this purpose three different approaches are applied: 1) exact solution, 2) simple model approximation, and 3) variational calculus.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

With the recent progress of MEMS technology, the development of MEMS devices for radio frequency (RF) applications has been growing rapidly. RF MEMS devices have a broad range of potential applications in wireless communication, space, instrumentation, etc. The main failure analysis issue for RF MEMS metal contacting switches focuses on contact metallurgy. During passage of current through the switch contact, some portions of the interface may melt and weld due to high temperature and a molten metal might be splashed from the surfaces, which leads to device failure. In this study, a mathematical treatment of the general problem of electrical contacts and heating related to MEMS switch contacts is developed. The spatial distribution of the potential, the current and the temperature in a special case of electrical contact between two gold bodies whose thermal and electrical conductivities vary with temperature is analyzed, and an explanation for the collapse of gold contact system before reaching the melting point is given. For this purpose three different approaches are applied: 1) exact solution, 2) simple model approximation, and 3) variational calculus.

Biographie de l'auteur

Reza Haj Mohammad Jafar holds a Master's degree in Mechanical Engineering from the University of Western Ontario and is currently pursuing a Ph.D. in Mechanical Engineering at University of Toronto. Dr. John R. Dryden is a Professor in the Department of Mechanical and Materials Engineering at the University of Western Ontario.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3659193089
ISBN 13 
9783659193088
Reliure
Broché
Nombre de pages
76
Coordonnées du fabricant
non disponible
Personne responsable
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