This paper describes the heat transfer from a heated microcantilever to the substrate and the resultant temperature distributions. A four-point probe platinum resistive thermometer having a 140 nm lateral resolution has been fabricated on the SiO2-coated silicon substrate. The estimated temperature coefficient of resistance (TCR) of the thermometer is 0.0011 K−1, approximately one third of the bulk value. When the heated cantilever scans over the thermometer, up to 70% of the cantilever power is transferred to the substrate through the air, heating up the substrate. The maximum substrate temperature rise measured with the thermometer is around 7 K. From the force-displacement experiment, the effective contact thermal conductance was estimated to be around 40 ± 20 nW/K. The obtained results will help further understanding of thermal behavior of the heated cantilever during the scanning and its effect on the substrate.
- Heat Transfer Division
Heat Transfer Between a Heated Microcantilever and the Substrate
Park, K, Cross, GLW, Zhang, ZM, & King, WP. "Heat Transfer Between a Heated Microcantilever and the Substrate." Proceedings of the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 2. Vancouver, British Columbia, Canada. July 8–12, 2007. pp. 805-815. ASME. https://doi.org/10.1115/HT2007-32536
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