Patent ID: 8020514

Claim:
A plasma processing apparatus, comprising: a processing chamber in which a plurality of substrates are stacked and accommodated; a pair of electrodes, each of which is covered with a protecting tube, for isolating from processing gas, and to each of which high frequency electricity is applied; a guttering-like partition forming a discharging chamber for accommodating the pair of electrodes that is formed at a part of an inner peripheral wall of the processing chamber and that is partitioned from the processing chamber; a gas supplying means for supplying processing gas into the discharging chamber; a gas blowout opening provided in the discharging chamber for supplying the processing gas into the discharging chamber; and a heater surrounding the processing chamber and the discharging chamber for heating the substrates in the processing chamber and the processing gas in the discharging chamber, wherein the gas blowout opening is opened at a wall portion of the discharging chamber and is opposite an exhaust pipe, and the substrates, while accommodated in the processing chamber, are accommodated at a position outside the discharging chamber and are kept clear of a space between the pair of electrodes.