Patent ID: 8685203

Claim:
A dry etcher comprising: an etching device comprising an etching chamber into which etching gas is injected so as to etch a layer formed on a substrate within the etching chamber; a substrate transfer device configured to transfer the substrate processed by the etching device; and a cleaning device comprising a chamber spaced apart from the etching device chamber, wherein the cleaning device is configured to clean the substrate transferred by the substrate transfer device, wherein the cleaning device comprises an in-shower knife configured to inject deionized water onto the transferred substrate, and an air knife configured to inject gas so as to dry the transferred substrate, wherein the air knife is inclined horizontally relative to the in-shower knife and is inclined vertically relative to the substrate, wherein the in-shower knife and the air knife are fixed to a single movable frame with a predetermined interval between the in-shower knife and the air knife, and wherein the in-shower knife can inject deionized water and the air knife can inject gas when the frame is stationary and when the frame is moved.