SUBSTRATE PROCESSING APPARATUS

To restrain air turbulence in the proximity of outer boundary edge of a substrate.SOLUTION: A substrate processing apparatus 1 includes a substrate holding part 2, a substrate rotation mechanism 3, and a blockage plate 51. The blockage plate 51 is placed at a processing position close to the top fac...

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1. Verfasser: ANDO YUKITSUGU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To restrain air turbulence in the proximity of outer boundary edge of a substrate.SOLUTION: A substrate processing apparatus 1 includes a substrate holding part 2, a substrate rotation mechanism 3, and a blockage plate 51. The blockage plate 51 is placed at a processing position close to the top face 91 of a substrate 9 when processing the substrate 9. The substrate holding part 2 includes a holding base 21, multiple support parts 22, and an outer peripheral ring part 23. The holding base 21 is placed below the substrate 9. The multiple support parts 22 have multiple abutment parts 224 abutting on the outer peripheral edge of the substrate 9 when holding, respectively, and are arranged in the hoop direction on the holding base 21. The outer peripheral ring part 23 is an annular plate member surrounding the substrate 9 in a state where the inner peripheral edge is close to the outer peripheral edge of the substrate 9, and covers at least a part of each support part 22, and the blockage plate 51 and at least a part thereof overlap in the plan view. With such an arrangement, air turbulence in the proximity of outer boundary edge of the substrate 9 can be restrained.SELECTED DRAWING: Figure 1 【課題】基板の外周縁近傍における気流の乱れを抑制する。【解決手段】基板処理装置1は、基板保持部2と、基板回転機構3と、遮断板51とを備える。遮断板51は、基板9を処理する際に基板9の上面91に近接した処理位置に配置される。基板保持部2は、保持ベース21と、複数の支持部22と、外周リング部23とを備える。保持ベース21は、基板9の下方に配置される。複数の支持部22は、基板9の保持時に基板9の外周縁に当接する複数の当接部224をそれぞれ有し、保持ベース21上において周方向に配列される。外周リング部23は、内周縁が基板9の外周縁に近接した状態で基板9の周囲を囲む環状の板部材であり、各支持部22の少なくとも一部を覆い、かつ、遮断板51とその少なくとも一部が平面視において重なる。これにより、基板9の外周縁近傍における気流の乱れを抑制することができる。【選択図】図1