The thin-film thermoelectric cooler (TEC) is a promising solid-state heat pump that can remove the high local heat flux of chips utilizing the Peltier effect. When an electric current pulse is applied to the thin-film TEC, the TEC can achieve an instantaneous lower temperature compared to that created by a steady current. In this paper, we developed a novel strategy to reduce the peak temperature of the chip working under dynamic power, thus making the semiconductor chip operate reliably and efficiently. A three-dimensional numerical model was built to study the transient cooling performance of the thin-film TEC on chips. The effects of parameters, such as the current pulse, the heat flux, the thermoelement length, the number of thermoelements, and the contact resistance on the performance of the thin-film TEC, were investigated. The results showed that when a current pulse of 0.6 A was applied to the thin-film TEC before the peak power of the chip, the peak temperature of the chip was reduced by more than 10°C, making the thin-film thermoelectric cooler a promising technology for the temperature control of modern chips with high peak powers.
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FunderThis research was supported by the National Natural Science Foundation of China (Grant No. 51778511), Natural Science Foundation of Hubei Province (Grant No. 2018CFA029), Key Research and Design Projects of Hubei Province (Grant No. 2020BAB129), Key Project of ESI Discipline Development of Wuhan University of Technology (Grant No. 2017001), and Scientific Research Foundation of Wuhan University of Technology (Nos. 40120237 and 40120551), and the Fundamental Research Funds for the Central Universities (WUT: 2021IVA037). The support to Dr. FANG Yueping from EU Horizon 2020 Marie Curie Global Fellowship (Grant No. 841183) was appreciated.
- heat transfer
- temperature control
- thermoelectric cooler
- transient cooling
ASJC Scopus subject areas
- Condensed Matter Physics