Roller assembly for an electroplating apparatus
US6517690B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Sep 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/241
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A roller assembly for an electroplating apparatus includes a plurality of feeding rollers adapted to advance a sheet-shaped workpiece, and a threaded rod disposed parallel to the feeding rollers and having a left-hand thread portion and a right-hand thread portion. Two guiding members are respectively formed with two threaded holes, which engage the left-hand and right-hand thread portions of the rod. A sensing unit detects the width of the workpiece to activate a controller and a driving unit, which rotates the rod so as to move the guiding members in opposite directions such that the guiding members abut against two opposite sides of the workpiece, thereby guiding the workpiece to move therebetween. Two conducting units are attached respectively to the guiding members for supplying cathode current to the sides of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.