Patent ID: 6220935
Filing Date: 2001-04-24
Classification: B24C,H01L

Abstract:
An apparatus for cleaning a substrate comprising:cleaning chambers each of which is disposed on a respective side with reference to a clearance therebetween;chuck means for clamping the substrate to be cleaned and moving the substrate between the inside of the clearance between the cleaning chambers and the outside thereof;screw means each of which is disposed to be rotatable and close to a respective surface of the substrate when the substrate is introduced into the clearance between the cleaning chambers;liquid supplying means for supplying the screw means with pure water or mixed liquid including pure water and medicinal liquid; andsnow ice supplying means for supplying the screw means with snow ice having a predetermined granular diameter;whereby the opposite surfaces of the substrate are cleaned by the screw means rotating pure water or mixed liquid including pure water and medicinal liquid, and snow ice so as to press it against the opposite surfaces of the substrate.