| People | Locations | Statistics |
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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
Transient contact opening forces in a MEMS switch using Au/MWCNT composite
Abstract
Most failures in micro electromechanical system (MEMS) switches can be attributed to the degradation of contact surfaces and sticking contacts. A wear-tolerant composite contact material, composed of a Au film supported by multi walled carbon nanotubes (Au/MWCNT), has been engineered to provide wear resistance and enhanced switching lifetime with conductive properties close to pure Au. Switching lifetimes of billions of cycles have been demonstrated, representing greatly increased performance over thin film Au. Below the arcing threshold (~12 V) the wear mechanism has been shown to be a combination of the fine transfer of contact material by the molten metal bridge (MMB) phenomenon and a delamination of the Au. In this study, the composite contact is hot switched at low current DC conditions (4 V DC and 20 mA) while the contact force is measured at the micro Newton scale in nanosecond resolution. The characteristic voltage waveform associated with the MMB is observed with forces detected as the contact softens, melts, and separates. The presence of a delamination event (DE) is also observed, where the contact opens abruptly with no MMB phenomenon apparent. The DE contact openings are associated with a transient peak force of 21.6 ± 2.3 µN while the MMBs are linked to a lower peak force of 18.1 ± 2.5 µN.