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Bei Xiang

Sr. Application Development Engineer

Momentive Technologies

Bei Xiang

Dr. Bei Xiang is currently the Master Application Development Engineer in Momentive Technologies. He received his Ph.D. in Chemical Engineering from University of California, Davis (UC Davis) in 2009. He has been working in Momentive Technologies for 13 years to lead the application and product development efforts on high performance ceramics materials in thermal management for consumer electronics, automotive, and LED. He has over 15 publications and patents in thermal fillers in polymers and functional polymers to date.


High-Performance Thermally Conductive Low Dielectric Constant Ceramics for Thermal Management in Electronics Packaging

Hexagonal boron nitride (h-BN) stands out as one of the premier ceramic fillers for enhancing thermal conductivity (TC) in polymeric thermal management materials. This enhancement is achieved without compromising the polymer’s electrical insulation or signal transmission. Thermal interface materials (TIM) filled with BN are prevalently used in electronic packaging, enabling efficient heat dissipation without compromising electrical insulation.

While integrating BN considerably boosts the TC of neat resins, our internal research into dielectric properties (like dielectric strength and dielectric constant) reveals that BN-filled polymer composites retain almost the same exemplary dielectric performance as unfilled polymer resins.

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