Power delivery control and balancing between multiple loads
US7586210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2005 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Apr 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plasma process machine includes at least two electrodes disposed in a processing chamber and in contact with targets, an alternating current source connected to supply power to the electrodes, and a power delivery controller adapted to control power delivered by the alternating current source to the electrodes. The power delivery controller is configured to determine a control value from a comparison between actual power delivery as detected by a detector and a desired power delivery, and to adjust power delivery based on the control value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.