Development of a novel flat laminate vapor chamber with innovative inner structure

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04180
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21060:Electron device and electronic equipment-related
• Research Institution: Kagoshima University
• Principal Investigator: MIZUTA Kei 鹿児島大学, 理工学域工学系, 准教授 (10336323)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: vapor chamber / thermal conductivity / ultra-thin / thermal solution

Outline of Final Research Achievements

Newly developed ultra-thin vapor chamber with innovative inside structure has been investigated. This newly developed vapor chamber is thinner than a conventional flat laminate vapor chamber, called FGHP (Fine Grid Heat Pipe), because this ultra-thin FGHP has multi-functional inner plate which replaces multiple materials stacked up inside a conventional FGHP. Results shows that this ultra-thin vapor chamber achieved a lot thinner structure with as high as 10,000 W m-1 K-1 in planner thermal conductivity, which was of the same level in heat dissipating ability with conventional one. Moreover, this structure obtained a patent grant in this time period.

Free Research Field

伝熱工学

Academic Significance and Societal Importance of the Research Achievements

本研究開発成果は、従来型の積層型ベーパーチャンバーでは厚過ぎるために適用できなかったような分野へも適用可能であることから、より広範な熱問題の解決に資することが可能である。具体的には、薄型筐体などにおいて半導体の熱問題を解決することにより、動作効率の改善や信頼性の向上に貢献可能となる。また、本研究開発成果は特許査定を得ていることから、速やかな社会実装が期待される。