发明名称 |
PROCESS AND APPARATUS FOR ROUGHENING A SUBSTRATE FOR PHOTOSENSITIVE LAYERS |
摘要 |
A mechanically roughened substrate is conveyed through an electrolytic bath and is given a superposed electrochemical roughening, which is carried out by means of electrodes which are arranged in the electrolytic bath at a specific spacing from the substrate. The electrodes are connected to corresponding windings on the secondary side of a three-phase transformer. The corresponding windings on the primary side of the three-phase transformer are connected to a three-phase frequency converter, to which three-phase current is applied via leads. The three-phase frequency converter transforms the line frequency of the three-phase current supplied into a frequency range of about 50 to 300 Hz at a voltage of between about 1 and 380 V.
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申请公布号 |
US5082537(A) |
申请公布日期 |
1992.01.21 |
申请号 |
US19900500955 |
申请日期 |
1990.03.29 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
STROSZYNSKI, JOACHIM;BOERGERDING, HEINZ;LEHMANN, PETER |
分类号 |
B41N3/03;B41N3/04;C25F3/04 |
主分类号 |
B41N3/03 |
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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