Patent ID: 6922867
Filing Date: 2005-08-02
Classification: B08B,H01L

Abstract:
1. In a semiconductor cluster tool, an arrangement to facilitate the processing of semiconductor wafers, comprising: a front opening unified Pod (FOUP) having a front opening through which said wafers are passed, a back wall, and a wafer holder assembly; a purging assembly for purging an interior of said FOUP with purging gas, said purging assembly including a robot arm configured to distribute said purging gas in said FOUP, said robot arm being configured to move between a resting position and a working position along an axis relative to said FOUP, said resting position being further away from said wafer holder assembly than said working position is from said wafer holder assembly, said robot arm, when disposed in said working position is configured to direct purging spray of said purging gas between said wafer holder assembly and said back wall.