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Journal Articles Kabarak Journal of Research & Innovation Year : 2022

Temperature-Dependent Elastic Constants of Substrates for Manufacture of Mems Devices

Abstract

We present a comparative computational study of temperature-dependent elastic constants of silicon (Si), silicon carbide (SiC) and diamond as substrates that are commonly used in the manufacture of Micro-Electromechanical Systems (MEMS) devices. Also mentioned is Cd 2 SnO 4 , whose ground-state elastic constants were determined just recently for the first time. Si is the dominant substrate used in the manufacture of MEMS devices, owing to its desirable electrical, electronic, thermal and mechanical properties. However, its low hardness, brittleness and inability to work under harsh environment such as hightemperature environment, has limited its use in the manufacture of MEMS like mechanical sensors and bioMEMS. Mechanical sensors are fabricated on SiC and diamond due to their high Young's moduli as well as high fracture strength, while the bioMEMS are fabricated on polymers. The effect of temperature on the elastic constants of these substrates will help in giving insight into how their performance vary with temperature.
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Dates and versions

hal-04049864 , version 1 (28-03-2023)

Identifiers

  • HAL Id : hal-04049864 , version 1

Cite

Nicholas O. Ongwen, Erick Ogam, Henry Otunga, Zine El Abiddine Fellah, Andrew Oduor, et al.. Temperature-Dependent Elastic Constants of Substrates for Manufacture of Mems Devices. Kabarak Journal of Research & Innovation, 2022, 12 (1), pp.30. ⟨hal-04049864⟩
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