Electric field assembled anisotropic dielectric layer for metal core printed circuit boards

  • Myong Jae Yoo*
  • , Hyun Min Cho
  • , Seong Hwan Kim
  • , Ho Sun Lim
  • , Seong Dae Park
  • , Woo Sung Lee
  • , Jin Seong Kim
  • , Tae Geun Seong
  • , Byoung Jik Jeong
  • , Sahn Nahm
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Thermal dissipation properties of metal core printed circuit boards (MCPCBs) with a dielectric layer having an anisotropically assembled microstructure are presented for dissipating heat of high-power transistors. The proposed MCPCB with an anisotropic microstructure was fabricated by applying an electric field simultaneously during the hot-pressing process. The effect of the anisotropically assembled microstructure of the dielectric layer compared with the conventionally fabricated dielectric layer was an increase in thermal diffusivity by the enhanced connectivity of fillers. Thermal transient measurements of high-power transistors with the proposed MCPCB were compared with those of high-power transistors with a conventional MCPCB. The developed MCPCB showed better heat dissipation performance and lower thermal resistance.

    Original languageEnglish
    Article number6311422
    Pages (from-to)1607-1609
    Number of pages3
    JournalIEEE Electron Device Letters
    Volume33
    Issue number11
    DOIs
    Publication statusPublished - 2012

    Bibliographical note

    Funding Information:
    Manuscript received July 27, 2012; revised August 4, 2012; accepted August 7, 2012. Date of publication September 24, 2012; date of current version October 19, 2012. This work was supported by the Ministry of Knowledge Economy of Korea under Grant 10038631 from the Fundamental R&D Program for Core Technology of Industry. The review of this letter was arranged by Editor S. List.

    Keywords

    • Anisotropic assemble
    • composite
    • heat dissipation
    • high-power device
    • metal core printed circuit board (MCPCB)
    • thermal resistance

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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