发明名称 |
Hydrodynamically controlled hull cell and method of use |
摘要 |
An apparatus for measuring the throwing power of electroplating solutions which provides a nearly linear current density distribution across the panel. The apparatus includes a cylindrical body adapted for rotation about a longitudinal axis thereof, a cylindrical cathode arranged coaxially about a central portion of the cylindrical body, an anode coaxially positioned at a lower end portion of the cylindrical body, a conical shield coaxially arranged around an upper end portion of the cathode; and an annular disk-baffle coaxially arranged around a lower end portion of the cathode. The conical shield and the disk-baffle provide a substantially linear current distribution over the cathode. In another aspect, the invention includes a method for measuring the throwing power of an electrolyte comprising using the instrument of the invention to analyze the variation in the appearance of an electrodeposit over a wide range of current densities along test panel by providing a nearly linear current density distribution across the panel in order to determine optimal electroplating conditions.
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申请公布号 |
US6139711(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19990251547 |
申请日期 |
1999.02.17 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
ABYS, JOSEPH ANTHONY;MAISANO, JOSEPH JOHN;HOLMBOM, LARS GORAN |
分类号 |
C25D21/12;G01N27/42;(IPC1-7):C25D21/12 |
主分类号 |
C25D21/12 |
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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