Patent ID: 7084988

Claim:
A system for in-situ regulation of an etch process employed in fabricating a multi-sloped semiconductor feature on a wafer, comprising: one or more etching components associated with each of a plurality of grid blocks associated with a wafer and operative to etch at least one aspect of a multi-sloped feature on the wafer; an etch component controller for controlling the one or more etching components; a system for directing light onto the wafer; a measuring system for measuring at least one etching parameter based on light reflected from the wafer; and a process analyzer operatively coupled to the measuring system and the etch component controller, wherein the process analyzer receives the measured parameters from the measuring system and analyzes the measured parameters to determine whether adjustments to the etching components are needed to fabricate the multi-sloped features within desired critical dimension tolerances and where the process analyzer stores the measured parameters to facilitate reproducing process conditions.