发明名称 |
Multilayer material having a resistance layer formed on an electrically conductive layer and a multilayer board for a printed circuit board which has a resistance layer |
摘要 |
An article of manufacture in form of a multilayer material includes (a) a conductive layer made of an electrically highly conductive material, (b) a resistance layer formed on the conductive layer, the resistance layer being made of an electrical resistance material, (c) a chromate treatment layer formed on the resistance layer, the chromate treatment layer being formed on the resistance layer by subjecting the surface of the resistance layer to a chromate treatment and containing chromium in an amount of 5 to 120 mu g per 1 dm2 of the chromate treatment layer and, (d) a silane coupling agent layer formed on the chromate treatment layer, the silane coupling agent layer being formed by applying a solution of a silane coupling agent to the surface of the chromate layer followed by drying. The concentration of the silane coupling agent in the solution is 0.001 to 5% by weight. A multilayer board having a resistance layer for the manufacture of printed circuit boards is produced by laminating the multilayer material and an insulating support.
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申请公布号 |
US5061550(A) |
申请公布日期 |
1991.10.29 |
申请号 |
US19900466983 |
申请日期 |
1990.01.18 |
申请人 |
NIPPON DENKAI, CO. LTD. |
发明人 |
SHIMIZU, KAZUNAO;MIKAMO, MASAHIRO;YAMAGISHI, TAKESHI |
分类号 |
H01C7/00;C23C22/24;H05K1/09;H05K1/16;H05K3/38 |
主分类号 |
H01C7/00 |
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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