In high-power-density designs such as AI servers and vehicle PCUs, extreme heat generated during operations is the primary cause of hardware failure. If the thermal interface material degrades, heat traps quickly, leading to chip burnout.
Vulnerabilities of Standard TIMs: Oil Bleeding and Embrittlement Many heavily loaded thermal pads experience hard-out, cracking, and oil bleeding after extended operation campaigns. In material science, these issues are classified as “Microscopic Phase Separation” and “Thermal Hardening.”
Under prolonged heat (125°C – 150°C), low-molecular siloxanes separate from the matrix and leak to the surface, causing contamination, while the inner dry matrix develops micro-cracks that destroy thermal performance.
Lixing’s Core Technology: Integrated Long-Chain Oil Locking Matrix
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Locking Oil via Polymer Matrix: To eliminate heat-induced phase separation, Lixing develops an integrated long-chain locking network. This 3D polymer mesh locks low-molecular-weight fluids and dense ceramic fillers natively into the matrix, restricting Total Mass Loss (TML) below 0.1%.
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Resisting Aging and Hardening: The kinetics reaction rate K of structural thermal aging conforms to the classical Arrhenius expression: K = A * exp(-Ea / (R * T)) (Pure text: K = A * exp(-Ea / (R * T)), where K represents the reaction rate constant, Ea defines the activation energy barrier, and T is the temperature) Lixing incorporates stable radical scavengers to elevate the activation energy Ea, keeping the hardness increase below 10% even after 1000 hours at 150°C.
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Fourier’s Law of Consistent Cooling: The volumetric heat flux q follows Fourier’s steady-state law: q = k * (dT / d) (Pure text: q = k * (dT / d), where k is thermal conductivity, and d is the compressed thickness) Lixing eliminates structural micro-cracking to ensure stable, reliable thermal paths over long product lifetimes.
Extreme Reliability: Long-Term Sealing and Conformability Backed by this microcellular breakthrough, Lixing thermal pads retain superior conformability and softness under heavy mechanical pressure and extreme temperatures, filling dynamic die warpage gaps flawlessly.
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