Related Experiment Video
Updated: Apr 18, 2026
11:24
Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
Published on: July 11, 2025
17.6K
Highly Vertically Oriented Graphene Microstrip Pads With Ultrahigh Through-Plane Thermal Conductivity and Ultralow
Xu Ran1, Yaru Wang1, Sijia Wu1
1In Situ Devices Center, School of Integrated Circuits, East China Normal University, Shanghai, P. R. China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|April 17, 2026
Summary
Researchers developed a graphene microstrip pad (GMP) that overcomes the thermal-mechanical trade-off in thermal interface materials (TIMs). This new material achieves ultrahigh thermal conductivity and low stiffness, significantly improving electronic cooling performance.
Area of Science:
- Materials Science
- Nanotechnology
- Thermal Engineering
Background:
- Microelectronic devices generate significant heat, necessitating advanced thermal interface materials (TIMs) for effective thermal management.
- A key challenge in TIM development is the trade-off between high thermal conductivity and mechanical compliance, hindering optimal heat dissipation.
- Existing TIMs struggle to balance efficient heat transfer with the ability to conform to surfaces without compromising performance.
Purpose of the Study:
- To engineer a novel thermal interface material (TIM) that simultaneously achieves ultrahigh thermal conductivity and ultralow compressive modulus.
- To overcome the inherent thermal-mechanical property trade-off in conventional TIMs for advanced electronic cooling applications.
- To demonstrate the practical effectiveness of the developed material in reducing operating temperatures of electronic components.
Main Methods:
- Fabrication of vertically oriented graphene microstrip pads (GMPs) by aligning graphene microstrips within a silicone rubber matrix.
- Optimization of graphene content to 60 wt.% (GMP60) to maximize thermal conductivity and minimize compressive modulus.
- Characterization of thermal conductivity, compressive modulus, and thermal resistance; performance evaluation via practical cooling tests on CPU and power chips.
Main Results:
- Achieved an ultrahigh through-plane thermal conductivity of 565.92 W m⁻¹ K⁻¹ in GMP60.
- Exhibited an ultralow compressive modulus of 115.16 kPa and a low total thermal resistance of 0.028 in² K W⁻¹.
- Demonstrated significant temperature reductions: 12°C for CPU core and 18.2°C for power chip under full load.
Conclusions:
- The developed vertically oriented graphene microstrip pad (GMP) effectively overcomes the traditional thermal-mechanical trade-off in TIMs.
- GMP60 offers a promising solution for next-generation electronic thermal management, enabling superior heat dissipation and component reliability.
- This approach establishes a new strategy for designing high-performance TIMs by controlling material architecture and composition.
