发明名称 |
NIOBIUM POWDER FOR CAPACITOR, NIOBIUM SINTERED BODY AND CAPACITOR |
摘要 |
<p>The present invention relates to niobium powder for a capacitor, comprising a niobium layer and a mixed layer of silicon nitride and niobium, the mixed layer being present in the vicinity of the powder particle surface; granulated niobium powder thereof; a niobium sintered body using the niobium powder and the granulated powder; and a capacitor using the sintered body as one electrode. The niobium powder for a capacitor of the present invention enables to produce a niobium capacitor having a high capacitance, a low leakage current, a low ESR and good tan δ characteristics and being excellent particularly in the properties of the breakdown voltage and soldering heat resistance.</p> |
申请公布号 |
EP1683167(B1) |
申请公布日期 |
2012.04.18 |
申请号 |
EP20040799699 |
申请日期 |
2004.11.09 |
申请人 |
SHOWA DENKO K.K. |
发明人 |
OMORI, KAZUHIRO;AMITA, HITOSHI |
分类号 |
H01G9/022;B22F1/00;B22F1/02;B22F5/00;C01B21/06;C04B35/495;C04B35/628;H01G9/052 |
主分类号 |
H01G9/022 |
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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