Patents Represented by Attorney, Agent or Law Firm George W. Hatnell, III
  • Patent number: 6810548
    Abstract: A cleaning apparatus of the present invention includes a roll brush for scrubbing the surface of the substrate, and an ultrasonic nozzle for blowing an aqueous cleaning solution against the surface of the substrate and generating an ultrasonic wave, wherein the roll brush and the ultrasonic nozzle are provided so as to oppose one another so that the substrate can be set in between. With the synergetic effects of brush scrubbing cleaning, ultrasonic cleaning and shower-cleaning, the precision cleaning of the upper surface of the substrate can be performed at a sufficient level of cleanliness. Moreover, in a state where the substrate to be cleaned is set, the roll brush can be cleaned automatically by the ultrasonic nozzle, and it is therefore possible to maintain the roll brush at high level of cleanliness without requiring maintenance operations.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: November 2, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroto Yoshioka, Takeshi Hara, Kazuki Kobayashi, Hitoshi Ono, Takashi Kimura