A Strategy to Reduce the Peak Temperature of the Chip Working under Dynamic Power Using the Transient Cooling Effect of the Thin-Film Thermoelectric Cooler

Yongjia Wu, Sen Chen, Tingrui Gong, Tianhao Shi, Lei Zuo, Yonggao Yan, Yueping Fang, Tingzhen Ming

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)1094-1105
Number of pages12
JournalJournal of Thermal Science
Volume31
Issue number4
DOIs
Publication statusPublished - 20 Jul 2022

Keywords

  • heat transfer
  • temperature control
  • thermoelectric cooler
  • transient cooling

ASJC Scopus subject areas

  • Condensed Matter Physics

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