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Composites comprised of aligned carbon fibers in chain-aligned polymer binder
Composites comprised of aligned carbon fibers in chain-aligned polymer binder
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机译:由链状排列的聚合物粘合剂中排列的碳纤维组成的复合材料
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摘要
A method for enhancing internal layer-layer thermal interface performance and a chip stack of semiconductor chips using the method. The method includes adding a thermosetting polymer to the thermal interface material, dispersing a plurality of nanofibers into the thermal interface material, and un-crosslinking the thermosetting polymer in the thermal interface material. The method further includes extruding the thermal interface material through a die to orient the conductive axis of the nanofibers and polymer chains in the desired direction, and re-crosslinking the thermosetting polymer in the thermal interface material. The chip stack includes a first chip with circuitry on a first side, a second chip coupled to the first chip by a grid of connectors, and a thermal interface material pad between the chips. The thermal interface includes nanofibers and a polymer that allows for optimal alignment of the nanofibers and polymer chains.
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