Your thermal issue is our issue.

Ultra High Thermal Conductivity

Heat Pipe >7X high
Vapor Chamber >50X high

compared with Copper
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Fujikura's Heat Pipes / Vapor Chambers

News  2022.10.26  Development of high-performance heat pipe for data center cooling

Providing over 250 million pcs
Micro-heatpipes and Vapor chambers to our global customers！

in the global trend of Electrification and Autonomous Driving toward 2025 and beyond

The problem of increased heat generation of EVs

Electrification requires
High power motor ＆ battery

Autonomous Driving requires
High performance processor

Our products resolve the thermal problem for such devices

Heat Pipe
Features
New wick structure is developed to achieve higher performance

 Qmax reaches 2X（55～60 → >100W）
 Heatpipe resistance reduces by 40%（0.05 → 0.03℃/W）

*℃/W：Thermal resistance

Vapor Chamber
Features
Flat plate type heat pipe that can distributes large heat input power over their entire surface.

 High performance against >1500W heat load
 One vapor chamber can remove heats from CPU, GPU or FET

 

Comparison of Heat Transfer Properties

Vapor chambers obtain a much higher effective thermal conductivity than graphite sheets.

  • 0
  • 5000
  • 10000
  • 15000
  • 20000
  • 25000
Peak effective thermal conductvity (W/m.K)
    UTVC (Ultra Thin Vapor Chamber):
  • 21200*
    • HP:
  • 3000*
    • Graphite:
  • 1200
    • Copper:
  • 400
*Reference data
check out our video

Thermo-graphic comparison video
(5x normal speed)

  • Heat input: 5 W
  • Sample 1 t=0.3mm Copper plate
  • Sample 2 t=0.2mm Copper plate + t=0.05mm Graphite sheet
  • Sample 3 t=0.2mm Copper plate + t=0.5mm Heat pipe
  • Sample 4 t=0.3mm Vapor chamber

Applicable areas of thermal products in EVs

EVにおけるサーマル製品の適用領域

Products by "watt vs cm2"

ソリューションの適用範囲

Thermal products history and next

We propose the best thermal solutions to customers based on our know-how through various experiences for 40 years.

Providing over 250 million pcs Micro-heatpipes and Vapor chambers to our global customers！

Overview of our thermal solutions

Heat Pipe

ヒートパイプの作動原理

Working Principle

Features

  • - Excellent heat transfer properties
  • - Quick temperature response
  • - High temperature uniformity

Benefits

  • - Large degree of design freedom
  • - Maintenance-free, zero running costs
  • - Lightweight and compact
  • - Environment-friendly

Vapor Chamber

ベーパーチャンバー

Features

  • - Much better heat transfer properties, quicker temperature response, and higher temperature uniformity compared to Heat Pipe
  • - Distributing heat over their entire surface

Benefits

  • - Much higher heat dissipation performance in combination with Heat Sink
  • - Maintenance-free, zero running costs
  • - Environment-friendly
products

Variety of Product Examples

Team member
Heat Pipe module for Gaming PC
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Heat Pipe module for server
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Heat Pipe module for Note PC
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Heat Pipe module for measuring instrument
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Various Heat Pipe
Team member
Vapor Chamber module for server

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