Patent ID: 6490810
Filing Date: 2002-12-10
Classification: B01J,B41J,C23C,H01L,Y10S

Abstract:
A vacuum processing system, comprising:a first conveyor structure for transferring a cassette; a cassette mount unit for holding the cassette; a second conveyor structure for transferring a wafer held in the cassette on the cassette mount unit; a vacuum loader provided with a third conveyor structure and at least one vacuum processing chamber, and at least one lock chamber disposed between the second conveyor structure and the third conveyor structure, wherein:the second conveyor structure includes a track installed along the at least one lock chamber, the second conveyor structure is provided with a robot which travels on the track, the robot is adapted to transfer a wafer from the cassette mount unit to a lock chamber, of the at least one lock chamber, the second conveyor structure is disposed between the cassette mount unit and a set of lock chambers, as the at least one lock chamber, which comprises a chamber to take in and to take out a wafer one by one and another chamber to take in and to take out a processed wafer, and the second conveyor structure is provided with a robot arm extendable to the cassette and facing to the at least one lock chamber.