Wafer processing system with chuck assembly maintenance module
US9812344B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2015 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B2203/0229
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A wafer processing system has a ring maintenance module for loading wafers into a chuck assembly, and for cleaning and inspecting the chuck assembly used in electroplating processors of the system. A shaft is attached to a rotor plate. A rotation motor rotates the shaft and a rotor plate on the shaft. A chuck clamp on an upper end of the shaft holds the chuck assembly onto the rotor plate. A lift motor raises and lowers the rotor plate and the shaft, to move open the chuck assembly for wafer loading and unloading, and to move the chuck assembly into different process positions. A swing arm having spray nozzles may be provided for cleaning the chuck assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.