Steady-state analytical model of suspended p-type 3C-SiC bridges under consideration of Joule heating
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Toan, Dinh
Hoang-Phuong, Phan
Kozeki, Takahiro
Namazu, Takahiro
Dao, Dzung Viet
Nam-Trung, Nguyen
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Abstract
This paper reports an analytical model and its validation for a released microscale heater made of 3C–SiC thin films. A model for the equivalent electrical and thermal parameters was developed for the two-layer multi-segment heat and electric conduction. The model is based on a 1D energy equation, which considers the temperature-dependent resistivity and allows for the prediction of voltage–current and power–current characteristics of the microheater. The steady-state analytical model was validated by experimental characterization. The results, in particular the nonlinearity caused by temperature dependency, are in good agreement. The low power consumption of the order of 0.18 mW at approximately 310 K indicates the potential use of the structure as thermal sensors in portable applications.
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Journal of Micromechanics and Microengineering
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27
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7
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Engineering
Other engineering not elsewhere classified