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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Mcbride, John Willaim
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2019Transient contact opening forces in a MEMS switch using Au/MWCNT compositecitations
- 2019Arc modeling to predict arc extinction in low-voltage switching devicescitations
- 2018In-situ contact surface characterization in a MEMS ohmic switch under low current switchingcitations
- 2015Characterisation of nanographite for MEMS resonators
- 2013A review of micro-contact physics for microelectromechanical systems (MEMS) metal contact switchescitations
- 2012The effects of porosity, electrode and barrier materials on the conductivity of piezoelectric ceramics in high humidity and dc electric fieldcitations
- 2009The effect of relative humidity, temperature and electrical field on leakage currents in piezo-ceramic actuators under dc biascitations
- 2009Micro-computer tomography-An aid in the investigation of structural changes in lead zirconate titanate ceramics after temperature-humidity bias testingcitations
- 2009Study of temperature change and vibration induced fretting on intrinsically conducting polymer contact systemscitations
- 2006The contact resistance force relationship of an intrinsically conducting polymer interfacecitations
- 2006The influence of thermal cycling and compressive force on the resistance of poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonic acid)-coated surfacescitations
- 2005Intermittency events in bio-compatible electrical contactscitations
- 2005The fretting characteristics of intrinsically conducting polymer contacts
- 2005Displacement measurements at the connector contact interface employing a novel thick film sensorcitations
- 2004The contact resistance force relationship of an intrinsically conducting polymer interfacecitations
- 2004Minimising fretting slip in connector terminals using conducting polymer contacts
- 2002Fretting in connector terminals using conducting polymer contacts
- 2002Fretting corrosion studies of an extrinsic conducting polymer and tin Interfacecitations
- 2002Fretting corrosion and the reliability of multicontact connector terminalscitations
- 2000Degradation of road tested automotive connectorscitations
Places of action
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article
In-situ contact surface characterization in a MEMS ohmic switch under low current switching
Abstract
To develop robust microelectromechanical systems (MEMS) switching technology for low voltage direct current (DC) applications (1–12 V) there is a requirement for the investigation of wear caused by hot switching (contact operated while carrying a current load). Previous investigation of contact wear in the ohmic MEMS switch has been limited to either the completion of the contact switching cycles, where the device is destructively opened, or by low switching rates, making lifetime testing impractical. A novel MEMS testing platform is described that is capable of both resolving microscale changes on the contact surface between switching events and sustained high frequency switch cycling, enabling practical lifetime testing. The platform is used to investigate early surface changes in a thin-film Au contact pair on a cycle-by-cycle basis. The contact is closed at forces representative of a practical MEMS contact (<1 mN). The apparatus reveals the microscopic surface change between individual switching events. Hot switched contact wear is dominated by the molten metal bridge (MMB) phenomenon, linked to a characteristic voltage transient at contact opening and the gradual process of contact material transfer; however, during hot switching delamination phenomena are also observed, and associated with a step change in contact voltage and a greater level of surface damage.