Patent ID: RE40046

Claim:
A processing system comprising: a processing vessel defining an airtight processing chamber; an upper electrode disposed in an upper region of the processing chamber; a lower electric disposed below and opposite to the upper electrode in the processing chamber, and a radio frequency power source connected at least to either the upper or the lower electrode; wherein the upper electrode includes a side facing into the processing chamber towards the lower electrode, the upper electrode side having a plurality gas discharge holes to supply a predetermined process gas therethrough into the processing chamber, resin insulating members, each provided with a through hole permitting the process gas to pass through, are fitted from the upper electrode side facing the processing chamber into the gas discharge holes, respectively, each of the gas discharge holes is provided with a shoulder, each of the insulating members is provided with a step, and each of the insulating members are positioned in the gas discharge hole with its step in contact with the shoulder of the gas discharge hole.