Patent ID: 8256375
Filing Date: 2012-09-04
Classification: G05B,H01L,Y02P

Abstract:
1. A wafer processing apparatus, comprising: a loading station; an exit station; at least one deposition station; a discharge station; a pivoting turret having a plurality of sliding belts mounted around the pivoting turret, wherein the loading station, the deposition station, the exit station and the discharge station are positioned around the pivoting turret such that the pivoting turret can transfer a wafer between the loading station, the deposition station, the exit station and the discharge station, wherein, following a direction of pivoting, the deposition station is positioned between the loading station and the exit station, and the discharge station is positioned between the exit station and the loading station; a first inspection device positioned to detect defects in wafers disposed in the loading station; a second inspection device positioned to detect defects in wafers disposed in the exit station; and a control unit programmed to inspect the wafer using the second inspection device and to discharge the wafer from the exit station along a first direction of discharge if no defects are detected by the second inspection device and to discharge the wafer from the discharge station along a second direction of discharge if defects are detected by the second inspection device.