Patent ID: 7198055

Claim:
A substrate preparation system, comprising: a head having a head surface, the head surface configured to be proximate to a surface of the substrate when in operation; a first conduit for delivering a first fluid to the surface of the substrate through the head; a plurality of second conduits for delivering a second fluid to the surface of the substrate through the head, the second fluid being different than the first fluid; and a plurality of third conduits for removing each of the first fluid and the second fluid from the surface of the substrate, the plurality of third conduits being located to substantially surround the first conduit, wherein the first conduit, the plurality of second conduits, and the plurality of third conduits being configured to act substantially simultaneously when in operation so as to define a meniscus contained between the head surface and the surface of the substrate; wherein the plurality of second conduits are located to substantially surround at least a portion of the at least one of the third conduit.