Hotspot Liquid Microfluidic Cooling: Comparing The Efficiency between Horizontal Flow and Vertical Flow

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Okamoto, Yuki^1 ; Ryoson, Hiroyuki^2 ; Fujimoto, Koji^2 ; Honjo, Keiji^2 ; Ohba, Takayuki^2 ; Mita, Yoshio^1

Dept. EEIS, Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo

113-8656, Japan^1

Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Kanagawa, Yokohama

226-8501, Japan^2

关键词: Circuit blocks;    Cooling methods;    Cooling scheme;    Efficiency limits;    High temperature;    Horizontal flows;    Microfluidic cooling;    Phase Locked Loop (PLL);   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012066/pdf
DOI  :  10.1088/1742-6596/773/1/012066

来源: IOP

【 摘 要 】

This paper reports a novel cooling method for a local high-temperature block in an integrated circuit, which is called a "hotspot". The method is to cool the chip in out-of-plane (3-D) direction to overcome efficiency limit of traditional horizontal (2-D) cooling. Our result indicates that high-temperature (over 180 C) circuit block such as a phase-locked-loop (PLL), which is a performance limiting block in a modern CPU, can more efficiently be cooled by the vertical (3-D) cooling scheme.