SHOWER PLATE AND PLASMA TREATMENT APPARATUS USING SHOWER PLATE

摘要

This invention provides a shower plate (31) for plasma treatment formed of a plurality of pipings. The shower plate comprises piping (31A3) comprising a porous material member (44), which is disposed along the piping and has a predetermined porosity to a raw material gas and is convexed to the outside, and a metallic member (41) which is disposed so as to face the porous material member (44) and, together with the porous material member (44), constitutes a raw material gas flow passage (43). According to the above constitution, a nozzle structure, which can release the raw material gas in a divergent form, can be realized.