The effective resistivity of dissimilar contact materials using an automated MEMS switching test platform.
The effective resistivity of dissimilar contact materials using an automated MEMS switching test platform.
An automated in-situ contact evolution (ICE) apparatus is used to study contact performance for a low contact force (<1 mN) MEMS switching application. The ICE system uses a metrology frame to combine the controlled switching of surfaces with the ability to measure the surface changes in-situ. After a defined number of switching cycles, the surfaces are separated within the metrology frame and measured, then replaced to the same physical location with a precision of 50 nm to continue the switching process. In this study the contact force, resistance relationship is investigated for the evaluation of the effective resistivity of a dissimilar surface combination. In the study a Gold coated hemisphere (radius 1 mm) is used with a Gold Coated (500 nm), multiwalled forest of vertically aligned carbon nanotubes (50 μm), referred to as Au/CNT. In this work we consider the measurement of effective resistivity by the ICE system and 3 other methods, using a nano-indentation system as a reference.
Rough surfaces, contact resistance, effective resistivity
McBride, John
d9429c29-9361-4747-9ba3-376297cb8770
Bull, Thomas G.
531098f0-7422-4822-a045-cf8e5ab0a04e
Liu, H.
c9560e2b-c593-4209-8578-39bd481ee456
Coutu, Ronald A.
48c3cf95-1cdc-4558-b76e-8d69abc946d2
23 October 2022
McBride, John
d9429c29-9361-4747-9ba3-376297cb8770
Bull, Thomas G.
531098f0-7422-4822-a045-cf8e5ab0a04e
Liu, H.
c9560e2b-c593-4209-8578-39bd481ee456
Coutu, Ronald A.
48c3cf95-1cdc-4558-b76e-8d69abc946d2
McBride, John, Bull, Thomas G., Liu, H. and Coutu, Ronald A.
(2022)
The effective resistivity of dissimilar contact materials using an automated MEMS switching test platform.
HOLM 2022 – The 67th IEEE Holm Conference on Electrical Contacts.
23 - 26 Oct 2022.
5 pp
.
(doi:10.1109/HLM54538.2022.9969841).
Record type:
Conference or Workshop Item
(Paper)
Abstract
An automated in-situ contact evolution (ICE) apparatus is used to study contact performance for a low contact force (<1 mN) MEMS switching application. The ICE system uses a metrology frame to combine the controlled switching of surfaces with the ability to measure the surface changes in-situ. After a defined number of switching cycles, the surfaces are separated within the metrology frame and measured, then replaced to the same physical location with a precision of 50 nm to continue the switching process. In this study the contact force, resistance relationship is investigated for the evaluation of the effective resistivity of a dissimilar surface combination. In the study a Gold coated hemisphere (radius 1 mm) is used with a Gold Coated (500 nm), multiwalled forest of vertically aligned carbon nanotubes (50 μm), referred to as Au/CNT. In this work we consider the measurement of effective resistivity by the ICE system and 3 other methods, using a nano-indentation system as a reference.
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Published date: 23 October 2022
Venue - Dates:
HOLM 2022 – The 67th IEEE Holm Conference on Electrical Contacts, 2022-10-23 - 2022-10-26
Keywords:
Rough surfaces, contact resistance, effective resistivity
Identifiers
Local EPrints ID: 474729
URI: http://eprints.soton.ac.uk/id/eprint/474729
PURE UUID: aa350194-cbf8-4865-8395-898c5baefe0a
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Date deposited: 02 Mar 2023 17:36
Last modified: 17 Mar 2024 02:35
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Contributors
Author:
Thomas G. Bull
Author:
H. Liu
Author:
Ronald A. Coutu
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