Patent ID: 8469346

Claim:
A substrate mounting mechanism comprising: a substrate mounting table for mounting a substrate thereon; a substrate elevating member having a substrate supporting portion for supporting an end portion of the substrate, the substrate elevating member being movable upwardly and downwardly between a first position at which the substrate is mounted on the substrate mounting table and a second position that is located above the first position; and an elevating unit for upwardly and downwardly moving the substrate elevating member, wherein, at the first position, the substrate elevating member is mounted on the substrate mounting table and the end portion of the substrate is supported by the substrate supporting portion of the substrate elevating member so that the substrate elevating member serves as a part of the substrate mounting table, wherein the substrate elevating member has a protrusion protruding to an inward side of the substrate mounting table, and the protrusion serves as the substrate supporting portion of the substrate elevating member, and wherein the substrate elevating member has a comb shape by having the protrusion in plural number.