发明名称 |
ELEKTRISK LEDENDE SUBSTRAT FORSYNT MED ET PALLADIUMNIKKELBELEGG OG FREMSGANGSMAATE VED FREMSTILLING AV DET BELAGTE SUBSTRAT. |
摘要 |
A permanently solderable palladium-nickel electroplated coating is formed on electrically conductive surfaces. The coating has a first alloy layer of 46 to 82 atomic percent palladium and 18 to 54 atomic percent nickel. This first layer is covered by a continuous second layer of 96 to 100 atomic percent metallic palladium and 0-4 atomic percent nickel. The second layer has a thickness of up to twenty angstroms. The second layer is formed by dipping the first layer in a solution of sulfuric or hydrochloric acid. |
申请公布号 |
NO165250(B) |
申请公布日期 |
1990.10.08 |
申请号 |
NO19840003689 |
申请日期 |
1984.09.17 |
申请人 |
DU PONT DE NEMOURS AND COMPANY, E.I. |
发明人 |
UPDEGRAFF, STEPHEN WAYNE |
分类号 |
C22C5/04;C23C28/02;C23C30/00;C23F1/44;C25D3/56;C25D5/48;(IPC1-7):C25D3/56;C25D5/16;C25D3/12;C25D5/12 |
主分类号 |
C22C5/04 |
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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