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1. (WO2018079666) HEAT-DISSIPATING MEMBER AND ELECTRONIC DEVICE USING SAME

Pub. No.:    WO/2018/079666    International Application No.:    PCT/JP2017/038734
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 27 01:59:59 CEST 2017
IPC: H01L 23/373
C04B 35/111
H01L 23/36
H05K 7/20
Applicants: KYOCERA CORPORATION
京セラ株式会社
Inventors: MATSUSHITA,Kouji
松下 浩司
Title: HEAT-DISSIPATING MEMBER AND ELECTRONIC DEVICE USING SAME
Abstract:
A heat-dissipating member of the present disclosure comprises an aluminum oxide ceramic which contains crystal particles of aluminum oxide, and which, of the 100 mass% of total components, contains 98 mass% or more of aluminum in terms of Al2O3 value. The crystal particles have an average value of 1.6 μm or more and 2.4 μm or less in equivalent circle diameter. In a cumulative distribution curve of the equivalent circle diameter of the crystal particles, the difference between an equivalent circle diameter at 10% accumulation (d10) and an equivalent circle diameter at 90% accumulation (d90) is 2.1 μm or more and 4.2 μm or less.