发明名称 |
ELEKTRISCH LEITENDE KUPFERSCHICHTEN UND VERFAHREN ZUR HERSTELLUNG DERSELBEN. |
摘要 |
Electrically conductive copper layers in conductor plates and electrical components having a black metal coating which is acid-soluble and capable of being applied in an acidic medium are more easily prepared and have superior properties. In the process of preparation, such conductor plates provided with a resist and, optionally, with through-contacts, and having free copper areas (a) are galvanically coated with a coating of a black metal in an acidic medium; (b) the resist is removed and then the copper areas having been exposed thereby are removed by etching; (c) the conductor plates are provided with an adhering solder mask; (d) at those parts that are not covered by the solder mask the black metal coating is removed and, if desired, the copper areas exposed thereby are provided with a well solderable metal layer. |
申请公布号 |
AT78967(T) |
申请公布日期 |
1992.08.15 |
申请号 |
AT19850115737T |
申请日期 |
1985.12.10 |
申请人 |
BLASBERG-OBERFLAECHENTECHNIK GMBH |
发明人 |
HUPE, JUERGEN, DR.;BREIDENBACH, HERBERT;SONNENSCHEIN, FRANK |
分类号 |
C23F1/02;H05K3/06;H05K3/24;H05K3/28;H05K3/34;H05K3/38;(IPC1-7):H05K3/06 |
主分类号 |
C23F1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|