Patent ID: 8057153

Claim:
A substrate lifting device that is configured separately from a transfer arm on which a substrate is carried, and transfers the substrate to/from said transfer arm and lifts/lowers the substrate off/onto a stage, comprising: a plurality of support pins disposed at positions set apart from one another around a support shaft of said stage, which support the substrate on the bottom surface thereof; a base at which said support pins are mounted; a vertical drive means for raising/lowering said substrate off/onto said stage by driving said support pins up/down via said base; and a horizontal drive means for adjusting the substrate above said stage in any horizontal direction by horizontally driving said support pins via said base, wherein: said plurality of support pins are disposed at positions further inward relative to the radius of said stage, and the front ends of said support pins are allowed to project out beyond and retract under a substrate placement surface of said stage via through holes formed at said stage; and said support pins are each horizontally driven inside the through holes by said horizontal drive means.