Patent ID: 6892738
Filing Date: 2005-05-17
Classification: B06B,B08B,Y10S

Abstract:
1. An assembly for cleaning a thin, flat substrate, the assembly comprising: a support for engaging a thin, flat substrate, the substrate having at least a first surface; a liquid engaging the first surface; at least a first source of sonic energy; and at least a first sonic energy transmitter spaced from the substrate but in contact with the liquid; wherein the first source applies sonic energy to the transmitter, and the transmitter transmits the sonic energy to the substrate first surface, and the transmitter attenuates the sonic energy to reduce the number of sonic waves that strike the substrate at or near a ninety degree angle, wherein the transmitter includes one or more features selected from the group consisting of a substantially elliptical cross section, a roughened surface, and a plurality of bores.