Patent ID: 6830649
Filing Date: 2004-12-14
Classification: H01L,Y10S

Abstract:
A semiconductor manufacturing apparatus comprising:an integrated measuring instrument for measuring the form or size of an element to be formed on a wafer; an etching unit for etching the wafer by using plasma generated under reduced pressure; an ashing unit for ashing the etched wafer; a wetting unit for wetting the etched wafer; a drying unit for drying the wafer which has gone through a wetting treatment; transport means for transporting the wafer to the integrated measuring instrument and each working unit, including the etching unit, the ashing unit, the wetting unit and the drying unit along a depressurizable transport passage; and control means for controlling an order of treatment of each working unit, including the etching unit, the ashing unit, the wetting unit and the drying unit for transporting, using said transport means, along the depressurizable transport passage; wherein, depending upon an order of treatment designated by said control means, the etched wafer is ashed and then subjected to the wetting treatment, or the etched wafer is wetted and then subjected to an ashing treatment, and afterwards, the etched wafer is measured by the integrated measuring instrument.