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The Mechanical and Electrical Effects of MEMS Capacitive Pressure Sensor Based 3C-SiC for Extreme Temperature
Joint Authors
Marsi, N.
Majlis, B. Y.
Hamzah, A. A.
Mohd-Yasin, F.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-22
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This paper discusses the mechanical and electrical effects on 3C-SiC and Si thin film as a diaphragm for MEMS capacitive pressure sensor operating for extreme temperature which is 1000 K.
This work compares the design of a diaphragm based MEMS capacitive pressure sensor employing 3C-SiC and Si thin films.
A 3C-SiC diaphragm was bonded with a thickness of 380 μm Si substrate, and a cavity gap of 2.2 μm is formed between the wafers.
The MEMS capacitive pressure sensor designs were simulated using COMSOL ver 4.3 software to compare the diaphragm deflection, capacitive performance analysis, von Mises stress, and total electrical energy performance.
Both materials are designed with the same layout dimensional with different thicknesses of the diaphragm which are 1.0 μm, 1.6 μm, and 2.2 μm.
It is observed that the 3C-SiC thin film is far superior materials to Si thin film mechanically in withstanding higher applied pressures and temperatures.
For 3C-SiC and Si, the maximum von Mises stress achieved is 148.32 MPa and 125.48 MPa corresponding to capacitance value which is 1.93 pF and 1.22 pF, respectively.
In terms of electrical performance, the maximum output capacitance of 1.93 pF is obtained with less total energy of 5.87 × 10−13 J, thus having a 50% saving as compared to Si.
American Psychological Association (APA)
Marsi, N.& Majlis, B. Y.& Hamzah, A. A.& Mohd-Yasin, F.. 2014. The Mechanical and Electrical Effects of MEMS Capacitive Pressure Sensor Based 3C-SiC for Extreme Temperature. Journal of Engineering،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1040437
Modern Language Association (MLA)
Marsi, N.…[et al.]. The Mechanical and Electrical Effects of MEMS Capacitive Pressure Sensor Based 3C-SiC for Extreme Temperature. Journal of Engineering No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1040437
American Medical Association (AMA)
Marsi, N.& Majlis, B. Y.& Hamzah, A. A.& Mohd-Yasin, F.. The Mechanical and Electrical Effects of MEMS Capacitive Pressure Sensor Based 3C-SiC for Extreme Temperature. Journal of Engineering. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1040437
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1040437