发明名称 |
Aluminium nitride materials and members used for the production of semiconductors |
摘要 |
An object of the present invention is to provide an aluminum nitride material having a high thermal conductivity and reduced volume resistivity at room temperature. An aluminum nitride material has interconnected intergranular phase functioning as electrical conductive phase. The material has a content of the conductive phase of not higher than 20 percent, calculated according to the following formula based on an X-ray diffraction profile. Content of the conductive phase (%) = (Integrated strength of the strongest peak of the conductive phase/Integrated strength of the strongest peak of aluminum nitride phase) x 100. Alternatively, the material has an electric current response index of not lower than 0.9 and not higher than 1.1 defined according to the following formula. Electric current response index = (Electric current at 5 seconds after a voltage is applied/Electric current at 60 seconds after a voltage is applied). |
申请公布号 |
EP1357097(A2) |
申请公布日期 |
2003.10.29 |
申请号 |
EP20030252520 |
申请日期 |
2003.04.22 |
申请人 |
NGK INSULATORS, LTD. |
发明人 |
TERATANI, NAOMI;YOSHIKAWA, JUN;KATSUDA, YUJI |
分类号 |
C04B35/581;H01L21/683;(IPC1-7):C04B35/581 |
主分类号 |
C04B35/581 |
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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