Patent ID: 6487791
Filing Date: 2002-12-03
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 from the cassette held on the cassette mount unit; a vacuum loader provided with a third conveyor structure and a vacuum processing chamber; and at least one lock chamber disposed between the second conveyor structure and the third conveyor structure, wherein: the first conveyor structure, the second conveyor structure and the third conveyor structure are respective provided with a first robot, a second robot and a third robot, the second conveyor structure is disposed between the cassette mount unit and the at least one lock chamber, and the third robot is disposed in a conveyor chamber of the vacuum loader and faces to the at least one lock chamber, and the second robot is positioned to face to a cassette, held on the cassette mount unit, for holding a set of wafers, and the second robot is adapted to transfer the wafers one by one to the at least one lock chamber, with a wafer being disposed in a respective lock chamber, and the third robot is disposed in the conveyor chamber of the vacuum loader so as to face the at least one lock chamber.