Patent ID: 6463938
Filing Date: 2002-10-15
Classification: B06B,B08B,H01L,Y10S

Abstract:
A cleaning apparatus comprising:a support for a generally flat article to be cleaned; a vibration transmitter having a rear portion configured to be supported adjacent to said article support and having an elongated forward portion extending over said article support to be closely spaced above an article positioned on the support; a source of fluid for supplying fluid onto the article, said forward portion being sufficiently close to the article so that a meniscus of the fluid is formed between said forward portion and the article; and a transducer coupled to said transmitter, said transducer being adapted to oscillate at a frequency for propagating megasonic energy through said forward portion and into said fluid between the forward portion and the article so as to cause particles on the surface of the article to be loosened.