Patent ID: 8453600

Claim:
A substrate processing apparatus, comprising: a reaction tube; a processing chamber formed inside the reaction tube to accommodate one or more substrates; a heating section disposed such as to surround the processing chamber from outside; a gas supply section to supply processing gas into the processing chamber; a gas discharge section to discharge the processing gas from the processing chamber; a protection container accommodated inside the reaction tube and made of dielectric; at least a pair of electrodes provided and air-tightly sealed in the protection container to plasma-excite the processing gas; an electricity-receiving section which is electrically connected to the electrodes and which is accommodated and air-tightly sealed in the protection container; and an electricity-feeding section to which high frequency electric power is applied and which is provided near the electricity-receiving section in a state in which at least a wall of the protection container is interposed between the electricity-receiving section and the electricity-feeding section, wherein electric power is supplied from the electricity-feeding section to the electricity-receiving section by electromagnetism coupling by way of the wall of the protection container.