Patent ID: 7601272
Filing Date: 2009-10-13
Classification: G03F,H01J,H01L

Abstract:
1. A method of processing a substrate, comprising: (a) providing a multi-chamber system comprising a transfer chamber, an etch chamber and a metrology chamber; (b) providing a metrology tool operatively coupled to the metrology chamber; (c) processing a substrate in the etch chamber, the substrate being one of a square or rectangular shape; (d) transferring the processed substrate to the metrology chamber using a robot provided inside the transfer chamber; (e) performing at least one optical measurement on the processed substrate using the metrology tool disposed in the metrology chamber while supporting the processed substrate on a blade of the robot in a predetermined position inside the metrology chamber; and (f) determining a substrate characteristic from the at least one optical measurement, wherein the substrate characteristic includes one of critical dimension, etch depth, layer thickness, or phase shift.