Patent ID: 8783273

Claim:
A substrate processing tool comprising: a housing defining a chamber; a substrate support coupled to the housing and configured to support a substrate within the chamber; a first container coupled to the housing within the chamber and configured to hold a first liquid, the first container being below and spaced apart from a lower surface of the substrate; a first impelling mechanism coupled to the housing and configured to apply a force to the first liquid within the first container such that an impelled portion of the first liquid contacts a first portion of the lower surface of the substrate; a second container coupled to the housing within the chamber and configured to hold a second liquid, the second container being below and spaced apart from the lower surface of the substrate; a second impelling mechanism coupled to the housing and configured to apply a second force to the second liquid within the second container such that an impelled portion of the second liquid contacts a second portion of the lower surface of the substrate, wherein the first liquid is isolated from the second liquid and a width of the first portion of the lower surface of the substrate and a width of the second portion of the lower surface of the substrate are less than a width of the lower surface of the substrate; and a third container coupled to the housing within the chamber, spaced apart from the substrate, and positioned substantially below the lower surface of the substrate, wherein the first container and the second container are positioned within the third container such that liquid held by the third container contacts an interstitial portion of the lower surface of the substrate between the first and second portions of the lower surface of the substrate.