Heat-dissipating member and electronic device using same
AssigneeKYOCERA Corporation
InventorKouji MATSUSHITA
Life of this patent
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Abstract
A heat-dissipating member includes aluminum oxide ceramics that includes crystal particles of aluminum oxide. The aluminum oxide ceramics includes 98 mass % or higher of aluminum in terms of Al2O3 with respect to 100 mass % of all constituents. The crystal particles have an average equivalent circle diameter of 1.6 μm or more and 2.4 μm or less. An equivalent circle diameter cumulative distribution curve of the crystal particles has a first diameter at 10 cumulative percent and a second diameter at 90 cumulative percent that is different from the first diameter by 2.1 μm or more and 4.2 μm or less.
Claims9
A heat-dissipating member, comprising
- aluminum oxide ceramics:
- comprising crystal particles of aluminum oxide having an average equivalent circle diameter of 1.6 μm or more and 2.4 μm or less;
- and
- being 98 mass % or higher of aluminum in terms of Al2O3 with respect to 100 mass % of all constituents,
- wherein
- an equivalent circle diameter cumulative distribution curve of the crystal particles has:
- a first diameter at 10 cumulative percent;
- and
- a second diameter at 90 cumulative percent that is different from the first diameter by 2.1 μm or more and 4.2 μm or less.
Dependencies are inferred from the claim text.