Patent ID: 6881264
Filing Date: 2005-04-19
Classification: H01L

Abstract:
1. In combination with a process chamber designed for performing a processing step for a substrate, a configuration for reducing particle contamination on said substrate, the configuration comprising: a chuck for receiving a backside of said substrate, said chuck configured inside said process chamber, said chuck formed with a vacuum port and a plurality of vacuum channels for fixing said substrate, said plurality of vacuum channels connected to said vacuum port; a set of at least three movable arms for lifting said substrate from said chuck, each of said arms having a tapered shelf; a device for controlling movement of said arms, said device for controlling movement of said arms including a drive; at least one rinse nozzle for dispensing a solvent liquid; a device for supplying said solvent liquid to said at least one rinse nozzle; a first source of gas pressure for providing a first gas pressure smaller than a gas pressure of said process chamber for providing nearly vacuum conditions; a second source of gas pressure for providing a second gas pressure larger than said gas pressure of said process chamber for providing a neutral gas to said plurality of vacuum channels; and a switching device having a first switched state for applying said first gas pressure to said vacuum port and a second switched state for applying said second gas pressure to said vacuum port.