Description:
This technology solves a major heat problem in modern electronics, where traditional thermal interface materials struggle to move heat away fast enough and carbon-nanotube options are often fragile or hard to manufacture. It uses tiny, well-aligned fibers with protective layers to move heat away quickly while maintaining flexibility, durability, and strong interfacial contact for high-performance cooling applications.
Background:
Modern electronic devices generate extreme heat densities that traditional thermal interface materials cannot efficiently dissipate due to limited conductivity, void formation, mechanical stresses, and minimum thickness constraints. Although carbon nanotubes offer exceptional intrinsic thermal conductivity, practical CNT-based TIMs suffer from poor interfacial contact, alignment challenges, mechanical fragility, and high manufacturing costs. These limitations hinder reliable performance in high-power and high-density systems. A reliable, manufacturable solution that achieves both high thermal conductance and mechanical compliance is urgently needed for next-generation electronics.
Technology Overview:
The invention employs a sheet of nano-scale fibers such as carbon nanotubes or metallic nanowires, stabilized within a polymerizable material that fills the void spaces between fibers. This composite sheet is sandwiched between two capping films, each comprising an inner palladium sub-film for adhesion to the stabilizing material and an outer nanoparticle sub-film that conforms to device and heat sink surfaces. The resulting structure creates robust, low-resistance thermal pathways while maintaining mechanical flexibility and structural integrity. This architecture enables efficient heat transfer while addressing interfacial and durability challenges common in conventional and CNT-based TIMs.
Advantages:
• Provides high thermal conductivity through aligned nano-scale fibers
• Improves interfacial contact using deformable metallic nanoparticle capping films
• Enhances adhesion with an engineered palladium inner sub-film
• Maintains mechanical compliance to absorb thermal cycling stresses
• Reduces interfacial thermal resistance even on rough or uneven surfaces
• Supports scalable, cost-effective manufacturing compared to direct CNT growth
• Offers structural robustness through a stabilized fiber matrix
• Compatible with high-power, high-density electronics requiring efficient heat dissipation
Applications:
• Thermal management for advanced aerospace and defense electronics
• High-performance computing systems including CPUs, GPUs, and AI accelerators
• High-power photonics, industrial laser systems, and LED packaging
• Next-generation consumer electronics requiring ultra-thin TIM layers
• Energy systems including power conversion modules and battery packs
• Telecommunications and 5G infrastructure electronics cooling
Intellectual Property Summary:
• United States 12/403,033 Utility Patent No. 8,129,001 Filed 03/12/2009 Issued 03/06/2012 Status Abandoned
• United States 12/403,013 Utility Patent No. 9,017,808 Filed 03/12/2009 Issued 04/28/2015 Status Patented
Stage of Development:
Prototype
Licensing Status:
This technology is available for licensing.
Licensing Potential:
Strong potential for electronics manufacturers, semiconductor companies, and thermal management solution providers seeking high-performance, scalable materials for next-generation high-power and high-density systems.
Additional Information:
Information available upon request.
Inventors:
Yayong Liu, Bahgat Sammakia, Hao Wang, Kaikyn Yank
Alternate NCS Title: Advanced Nano-Fiber Composite TIM for Ultra-High-Performance Electronics Cooling