Patent ID: 6146077
Filing Date: 2000-11-14
Classification: H01L,Y10S

Abstract:
A wafer transfer system of semiconductor fabricating equipment comprising:a system body;a first cassette support installed at a predetermined position on said system body;a first cassette loaded on said first cassette support and containing a plurality of wafers having serial numbers;a serial number detecting device, installed on said system body at a first side of said first cassette, said serial number detecting device being vertically movable;first vertical movement means for vertically moving the serial number detecting device;a second cassette support, installed on said system body and spaced apart by a predetermined distance from said serial number detecting device, said second cassette support being vertically movable;second vertical movement means for vertically moving the second cassette support;a second cassette, loaded on said second cassette support, for receiving said plurality of wafers;a wafer transfer robot having a wafer transfer arm for transferring said plurality of wafers from said first cassette to said second cassette, said wafer transfer robot being installed on said system body at a second side of said first cassette, said second side of the first cassette being opposite to said first side of the first cassette, and the wafer transfer robot being vertically movable;third vertical movement means for vertically moving the wafer transfer robot; anda computer connected to said wafer transfer robot, said serial number detecting device, said first cassette support, said second cassette support, and said first, second and third vertical movement means, via a network system, for receiving and displaying serial numbers from said serial number detecting device, and for directing said wafer transfer robot to transfer said plurality of wafers from said first cassette into selected locations in said second cassette.