Patent ID: 9670584
Date: 2017-06-06
CPC Classifications: C23C,H01J

Claim:
1. A plasma processing device, comprising: a stage; a processing vessel configured to define a processing space above the stage; a first supply unit configured to supply a first process gas for layer deposition to the processing space; a masking portion electrically conductive and including a first surface facing the processing space, a second surface opposite to the first surface, and one or more through holes; a dielectric member provided to be in contact with the second surface of the masking portion and including one or more cavities connected to the one or more through holes; a microwave introduction unit configured to introduce microwaves to the dielectric member; and a second supply unit configured to supply a second process gas for plasma processing into the one or more cavities of the dielectric member, whereby a plasma is generated in the one or more cavities, wherein the microwave introduction unit includes a slot plate which is made of metal, and wherein the dielectric member constitutes a dielectric window provided between the slot plate and the masking portion, the dielectric window being configured to transmit microwaves therethrough.