Patent ID: 6685800
Filing Date: 2004-02-03
Classification: H01J

Abstract:
An apparatus for generating ICP, comprising:a chamber providing a hermetical space; an antenna plate disposed to horizontally divide the hermetical space; a gas distribution plate disposed to horizontally divide a space below the antenna plate and having a plurality of injecting holes; a reaction gas supplying port disposed at a space between the antenna plate and the gas distribution plate so as to inject a reaction gas through the injecting holes of the gas distribution plate to a space below the gas distribution plate; a reaction gas discharging port disposed to discharge the reaction gas injected to the space below the gas distribution plate; an RF antenna for forming plasma at the space below the gas distribution plate, which is mounted on the antenna plate; a heating plate for heating the chamber, which is disposed to horizontally divide a space above the antenna plate, the heating plate having a plurality of air holes extending therethrough; a heat transferring gas supplying port disposed at a space above the heating plate so as to inject a heat transferring gas through the air holes of the heating plate to a space between the heating plate and the antenna plate; and a heat transferring gas discharging port disposed to discharge the heat transferring gas injected to the space between the heating plate and the antenna plate, wherein the plurality of air holes are structured to permit the heat transferring gas to pass therethrough.