Patent ID: 6647998
Filing Date: 2003-11-18
Classification: H01L,Y10S

Abstract:
A electrostatic charge-free solvent-type dryer for drying semiconductor wafers comprising:a tank body for holding a volume of water therein; a wafer carrier for holding a plurality of wafers therein; an elevator means for lowering and raising said wafer carrier into and out of said volume of water; a tank cover for covering an open top of said tank body forming a hermetically sealed cavity therein, said cover having a plurality of partition plates formed perpendicular to an interior surface of said cover extending downwardly into said tank cavity when said cover is mounted on said body; a conduit for feeding a flow of solvent vapor into said sealed cavity; and wherein at least one of said tank cover, said plurality of partition plates and said conduit is fabricated of a non-electrostatic material such that electrostatic charge is not generated in said flow of solvent vapor.