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The Thin Plate Heat Pipe Koch Fractal Wick Structures Investigation

  • Jun Liu
  • , Yunqian Song
  • , Zhenyu Wang
  • , Rong Gao
  • , Binbin Jiao
  • , Quan Hu
  • Peking University
  • Leihua Electronic Technology Research Institue AVIC
  • CAS - Institute of Microelectronics

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the fast development of 3D packaging in the power electronics area, the vapor-liquid cooling wick structures integrated into the packages was considered an efficacious heat dissipation solution. The Koch self-similar rule was applied to design different thin vapor-liquid cooling wick structures. As a combination of the T tree and equidistant pillar array, the non-equidistant pillar array design was modeled, fabricated, and investigated. The equidistant pillar array and the non-equidistant pillar array were micro-fabricated into the silicon-glass visualization platforms for the visualization study and the IR measurements. With the smooth corners and suitable pillar pitch arrangement, the non-equidistant hexagon pillar array displayed a better heat dissipation efficiency (approximately 2.6 ± 0.2 times higher). The integrated vapor-liquid wick structure could rapidly and uniformly dissipate the local heat from the transistors into the entire substrate to guarantee the lifetime of the transistors.

Original languageEnglish
Title of host publication2018 1st Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages316-319
Number of pages4
ISBN (Electronic)9781538643921
DOIs
StatePublished - May 2018
Externally publishedYes
Event1st Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2018 - Xi'an, China
Duration: 16 May 201818 May 2018

Publication series

Name2018 1st Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2018

Conference

Conference1st Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2018
Country/TerritoryChina
CityXi'an
Period16/05/1818/05/18

Keywords

  • Flat-Plate Heat Pipe
  • Integrated Cooling
  • Koch Fractal
  • Micropillar Array

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