Patent ID: 6981832
Filing Date: 2006-01-03
Classification: H01L

Abstract:
1. A wafer processing system configured for handling standard 300-mm FOUP cassettes, the system comprising: an input/output station; a cassette transfer region adjacent to the input/output station; a wafer handling chamber adjacent to the cassette transfer region, the wafer handling chamber senarated from the cassette transfer region by an interface configured for interacting with a 300-mm FOUP cassette; a cassette transfer mechanism configured for transferring cassettes from the input/output station through the cassette transfer region to the interface; a wafer handling robot within the wafer handling chamber, the wafer handling robot configured to access wafers within cassettes through the interface; and a tool set adapted for receiving and transferring 200-mm open cassettes within the wafer processing system, wherein the cassette transfer mechanism comprises a cassette handler robot configured to transfer cassettes between the input/output station and the cassette transfer region, wherein the cassette handler robot has a bearing surface designed to receive a standard 300-mm FOUP cassette, the wafer processing system further comprising a cassette handler adapter configured to fit on the bearing surface, the cassette handler adapter further configured to accommodate a 200-mm open cassette thereon.