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US 9,437,521 B2Granted
Thermally conductive sheet
AssigneeDexerials Corporation
InventorsKeisuke Aramaki, Takuhiro Ishii, Masahiko Ito, Shinichi Uchida, Atsuya Yoshinari, Syunsuke Uchida
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Abstract
A thermally conductive sheet, comprising a curable resin composition, thermally conductive fibers, and thermally conductive particles, wherein the thermally conductive sheet has a compressibility of 40% or more.
Claims19
A thermally conductive sheet comprising:
- a curable resin composition;
- thermally conductive fibers;
- and
- thermally conductive particles,
- wherein the thermally conductive sheet has a thickness of more than 1.5 mm and 3.0 mm or less,
- wherein the thermally conductive sheet has a compressibility of 40% or more, and has a minimum value of a thermal resistance in a load range of 0.5 kgf/cm2 or more and 3 kgf/cm2 or less, and
- wherein the thermally conductive sheet has a peak value of a thermal conductivity of 15 W/mK or more in the compressibility thereof of 20% or less.
4 more elements
A method for producing a thermally conductive sheet, the method comprising:
- extruding a thermally conductive composition comprising a curable resin composition, thermally conductive fibers and thermally conductive particles;
- and
- cutting an extruded columnar cured product in a substantially perpendicular direction to a longitudinal direction of the extruded columnar cured product to thereby obtain the thermally conductive sheet,
- wherein in the cutting, the extruded columnar cured product is cut to have a predetermined thickness of more than 1.5 mm and 3.0 mm or less so that the thermally conductive sheet exhibits a maximum compression stress of less than 780 N when the thermally conductive sheet is compressed by 40% at a rate of 25 mm/min or less, and the thermally conductive sheet has a peak value of a thermal conductivity of 15 W/mK or more in a compressibility thereof of 20% or less.
1 more element
Dependencies are inferred from the claim text.