Patent ID: 9422120
Filing Date: 2016-08-23
CPC Classification: B65G,H01L

Claim Text:
1. A levitation air plate comprising: a top plate in which a plurality of air ejection holes and suction holes penetrating from an upper surface to an lower surface thereof are arranged in alternating fashion as viewed from the upper surface, said top plate having a counter-bored portion on the lower surface side of each of the plurality of air ejection holes; an orifice sheet having a plurality of first orifices penetrating from an upper surface to a lower surface thereof in positions corresponding to the counter-bored portions of the top plate, and having communicating holes communicated one-to-one with the suction holes of the top plate and penetrating from the upper surface to the lower surface; and a bottom side plate having an air supply route and an air supply hole for supplying air to all of the first orifices drilled in the orifice sheet, and having an air suction route and a suction hole for suctioning air from all of the communicating holes communicating with the suction holes.