Patent ID: 7211932
Filing Date: 2007-05-01
Classification: B06B,B08B,H01L,Y10S

Abstract:
1. An apparatus for megasonic processing of an article comprising: a rotatable support for supporting an article; a vibration transmitter having a rear portion and an elongated forward portion, the vibration transmitter positioned so that the elongate forward portion extends at an orientation other than normal to and close to but spaced from a surface of an article on the rotatable support so that when a fluid applied to the surface of the article, a meniscus of the fluid is formed between at least a portion of the elongated forward portion and the surface of the article; and a transducer coupled to the rear portion of the transmitter, the transducer adapted to oscillate at a frequency for propagating megasonic energy through the elongated forward portion of the transmitter and into the meniscus of the fluid.