| 发明名称 |
Dissolution of metals utilizing tungsten-diol combinations. |
| 摘要 |
<p>The present invention relates to the dissolution of metals in an aqueous bath containing sulfuric acid and hydrogen peroxide, and in particular to a novel bath composition capable of effecting the dissolution at high rates. In one specific aspect the invention is concerned with etching of copper in the production of printed circuit boards. </p> |
| 申请公布号 |
EP0150512(A2) |
申请公布日期 |
1985.08.07 |
| 申请号 |
EP19840116499 |
申请日期 |
1984.12.29 |
| 申请人 |
PLASTIC SPECIALTIES AND TECHNOLOGIES, INC. |
发明人 |
ELIAS, MOENES LEWIS;BURGER, WALTER LEE |
| 分类号 |
C23F1/18;C23F1/16;H05K3/06;(IPC1-7):C23F1/16 |
主分类号 |
C23F1/18 |
| 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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