发明名称 |
CERAMIC POWDER AND METHOD OF USING THE SAME |
摘要 |
<p>The present invention herein provides ceramic powder which is to be incorporated into rubber or a resin and which can be used as, for instance, a semiconductor-sealing material and for the preparation of a composition excellent in the narrow interstice-filling up property and moldability. The ceramic powder has a multiple peak-frequency type particle size distribution which has at least two peaks, as determined according to the laser diffraction-scattering type particle size distribution analyzer, wherein the maximum particle size observed for the first peak falls within the range of from 12 to 30µm; that observed for the second peak falls within the range of from 2 to 7µm; the content of the particles having a particle size of greater than 7µm and less than 12µm is not more than 18% (including 0%); and wherein the ratio (F2/F1) of the frequency value F2 of the maximum particle size for the second peak to that F1 of the maximum particle size for the first peak ranges from 0.5 to 1.3.</p> |
申请公布号 |
EP2025644(A1) |
申请公布日期 |
2009.02.18 |
申请号 |
EP20070743180 |
申请日期 |
2007.05.11 |
申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
NISHI, YASUHISA;FUKUDA, TAKASHI |
分类号 |
C01B33/12;C04B35/14;C08K3/36;H01L23/29 |
主分类号 |
C01B33/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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