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PAPERS ON RELIABILITY

Autoclave Reliability of MEMS Pressure and Temperature Sensors Embedded in Carbon Fiber Composites

[+] Author and Article Information
Amir Javidinejad, Shiv P. Joshi

Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019

J. Electron. Packag 123(1), 79-82 (May 26, 2000) (4 pages) doi:10.1115/1.1322563 History: Received September 09, 1999; Revised May 26, 2000
Copyright © 2001 by ASME
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References

Javidinejad, A., 1999, “Mechanical Design of Embeddable Micro Smart Sensing Systems,” Ph.D. dissertation, University of Texas at Arlington.
Javidinejad, A., Joshi, S. P., and Shiakolas, Panos, 1999, “Application of Electrically Conductive Thermoplastic adhesive Film for Design and Manufacturing of Smart Structures,” Proceedings of 1999 SPIE/ASME Smart Structures & Materials Conference, Vol. 3668.
Javidinejad,  A., and Joshi,  S. P., 1999, “Design and Structural Testing of Smart Composite Structures with Embedded Conductive Thermoplastic Film,” J. Smart Mater. Struct.,8, pp. 585–590.
Javidinejad, A., and Joshi, S. P., 2000, “Embedding of MEMS Pressure and Temperature Sensors in Carbon Fiber Composites: A Manufacturing Approach,” Proceedings of 2000 SPIE/ASME Smart Structures & Materials Conference, Vol. 3986.

Figures

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Pressure sensor schematics (this figure is from NovaSensors’s NPP-301 Datasheet)
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Temperature sensor schematics
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Insulation film lay-up on the composite prepreg
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Fabrication lay-up process sequence
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Reverse side insulation lay-up on the prepreg
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Conductive thermoplastic film to sensor lay-up and connections
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Pressure sensor operational check instrumentation
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Pressure sensor output and linearity check before and after autoclave cycle
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Micrograph of the pressure diaphragm: (a) before curing cycle, (b) after the curing cycle
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Temperature sensor operational check instrumentation
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Temperature sensor output and linearity check before and after autoclave cycle for (a) sensor 1, (b) sensor 2, (c) sensor 3

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