Patent ID: 6092539
Filing Date: 2000-07-25
Classification: B08B,H01L,Y10S

Abstract:
An in-situ cleaning apparatus for a wafer used in an integrated circuit device, said apparatus comprising:a dry cleaning section comprising an inert gas storage bath, a hydrogen fluoride gas storage bath, a vapor storage bath containing a component selected from the group consisting of water vapor, alcohol vapor, and mixtures thereof, and a gas mixer for mixing the components supplied from the respective storage baths that are present in series relative to one another, wherein the inert gas storage bath, the hydrogen fluoride gas storage bath, and the vapor storage bath are in communication with the gas mixer;a wet cleaning section comprising a first bath for storing fluoride; a second bath for storing a liquid alcohol; and a cleaning solution storage bath in communication with the first bath and the second bath, wherein the fluoride and the liquid alcohol form a cleaning solution which is stored in the cleaning solution storage bath; anda common cleaning bath positioned between and in Communication with the dry cleaning section and the wet cleaning section.