Patent ID: 6157078
Filing Date: 2000-12-05
Classification: H01L

Abstract:
A system for controlling a formation of an interconnect of an integrated circuit, comprising:a computer system operably linked to several processing and measurement tools;a scanning electron microscope linked to the computer system for sending width and length dimension measurement results of trenches;an ellipsometer linked to the computer system for sending depth dimension measurement results of trenches;a chemical-mechanical polishing tool linked to the computer system for receiving chemical-mechanical polishing process parameters;a database, stored within the computer system, adapted for maintaining records comprising the dimension measurement results of the trenches, a resistivity of an interconnect material, an interconnect material deposition depth, the chemical-mechanical polishing process parameters, and a predetermined interconnect resistance; anda program, adapted for execution on the computer system, to modify the chemical-mechanical polishing process parameters based upon a calculation of a target thickness of the interconnect material that results in the predetermined resistance.