Patent ID: 6983756
Filing Date: 2006-01-10
Classification: B08B,H05K,Y10S

Abstract:
1. A substrate treatment apparatus for a substrate, comprising: a treatment vessel; a substrate holder configured to rotate said substrate in a horizontal plane in said treatment vessel; a nozzle unit positioned in an upper portion of said treatment vessel and configured to eject at least one liquid over at least a portion of said substrate covering a length substantially equal to or greater than a diameter of said substrate and a width smaller than the diameter of said substrate as said substrate is held on said substrate holder, said nozzle unit comprising a plurality of cells configured to be fed with the at least one liquid; and a plurality of feed lines configured to feed the at least one liquid to said plurality of cells, respectively wherein said nozzle unit further comprises an ultrasonic wave generator configured to apply ultrasonic waves to the at least one liquid, and said plurality of cells comprises at least one flow channel for ozone water, at least one flow channel for hydrogen water and at least one flow channel for ozone-hydrogen water, connected to respective feed lines, and said at least one flow channel for ozone water is shielded from the ultrasonic waves.