Patent ID: 7064070
Filing Date: 2006-06-20
Classification: B08B,C11D,H01L

Abstract:
1. A method of post chemical mechanical polishing (CMP) cleaning to remove a CMP residue from a surface of an object comprising the steps of: a. performing a rinse process to remove at least a portion of the CMP residue from the surface of the object; b. placing the object within a pressure chamber; c. pressurizing the pressure chamber; d. performing a supercritical carbon dioxide process to remove a residual CMP residue from the surface of the object, wherein performing a supercritical carbon dioxide process comprises: e. venting the pressure chamber; and f. performing a washing process including at least one of immersion baths, megasonic baths, mechanical rollers, mechanical brush scrubbers and double-sided scrubbers, after the step of venting the pressure chamber.