Patent ID: 6625497
Filing Date: 2003-09-23
Classification: G03F,G05B,H01L,Y02P

Abstract:
An apparatus for processing a semiconductor wafer, comprising:a measuring tool for measuring a dimension of a structure on the wafer; a first processing tool for performing a first process on the wafer using a first set of process parameter values; a transfer mechanism for transferring the wafer between the measuring tool and the first processing tool; a chamber for enclosing the transfer mechanism and allowing communication between the transfer mechanism, the measuring tool and the first processing tool in a clean environment; and a processor configured to select the first set of process parameter values based on the measurement of the dimension; wherein the measuring tool is for measuring a critical dimension (CD) of a target feature on the wafer; wherein the chamber comprises: a mainframe for mounting a plurality of processing tools, including the first processing tool; a factory interface for housing the measurement tool and for mounting a wafer cassette; and a transfer chamber between and in communication with the mainframe and the factory interface; and wherein the transfer mechanism comprises a first robot for transferring the wafer between the measurement tool, the transfer chamber and the wafer cassette, and a second robot for transferring the wafer between the transfer chamber and the first processing tool.