System and method for electrolytic plating
AssigneeViasystems Group, Inc.
InventorsHein van Kempen, Daniel J. Weber
Life of this patent
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AssigneeViasystems Group, Inc.
InventorsHein van Kempen, Daniel J. Weber
Estimating the term…
The present invention includes an electrolytic plating system with an elecrolytic plating bath, means for positioning the printed circuit boards in the bath, and means to alternately generate a laminar flow of electrolyte on each side of the printed circuit boards. A preferred means to alternately generate a laminar flow of electolyte comprises a floating shield with a venturi-shaped partition and an aligned partition below the printed circuit boards, and operating a plurality of eductors below the floating shield. The means to alternately generate a laminar flow of electolyte can further comprise a transport mechanism that moves the floating shield and its partitions from side to side relative to the eductors or a mechanism to move the eductors. The plating can be also be improved by using a vibrator and a spring-mounting system that prevents vibration energy being absorbed by fixed portions of the plating system.
An electrolytic plating system for plating vias and thru-holes in printed circuit boards, comprising:
An electrolytic plating system for plating vias and thru-holes in printed circuit boards, comprising:
An electrolytic plating system for printed circuit boards comprising:
An electrolytic plating method for plating vias and thru-holes in printed circuit boards, comprising:
An electrolytic plating method for plating vias and thru-holes in printed circuit boards, comprising:
An electrolytic plating method for printed circuit boards comprising:
Dependencies are inferred from the claim text.