Sheet for conducting heat
AssigneePolymatech Co., Ltd.
InventorsKouya Takahashi, Natsuko Ishihara
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Abstract
A heat conductive sheet comprising organic matrix and heat conductive filler contained in the organic matrix at a volume percent between 30% and 80%. The heat conductive filler comprises spherical shaped alumina grains which have an average grain diameter in a range between 50 μm and 80 μm. The heat conductive filler includes micro grains having a grain diameter of 30 μm or less at a proportion of 5 volume % or less with respect to the total amount of the spherical shaped alumina grains.
Claims14
A heat conductive sheet comprising organic matrix and heat conductive filler contained in the organic matrix at a volume percent between 30% and 80%, wherein the heat conductive filler comprises spherical shaped alumina grains which have an average grain diameter in a range between 50 μm and 80 μm and which include micro-grains having a grain diameter of 30 μm or less at a proportion of 5 volume % or less with respect to the total amount of the spherical shaped alumina grains.
A heat conductive sheet comprising organic matrix and heat conductive filler contained in the organic matrix at a volume percent between 30% and 80%, wherein the heat conductive filler comprises spherical shaped alumina grains having an average grain diameter in a range between 50 μm and 80 μm and a second type of heat conductive filler grains having an average grain diameter at 5 μm or less, wherein the second type of heat conductive filler grains are contained in the heat conductive filler at a proportion between 20 volume % and 50 volume %.
Dependencies are inferred from the claim text.