Patent ID: 7622006
Filing Date: 2009-11-24
Classification: H01L,Y10S

Abstract:
1. A transfer mechanism for transferring an object to be processed, comprising: a casing for defining a transfer chamber under a vacuum state, the casing having a transfer port for transferring the object between the transfer chamber and an outside thereof; a guide rail substantially horizontally installed in the transfer chamber; a moving part including a moving body movably installed on the guide rail and a holding body for holding the object; a horizontally driving unit for moving the moving body of the moving part along the guide rail; a position detecting linear scale installed on the moving part and extending in a moving direction of the moving part; and a plurality of position detecting sensors installed at a height corresponding to the linear scale on an inner surface of the casing, the position detecting sensors being disposed in the moving direction of the moving part such that a distance between two neighboring position detecting sensors is shorter than a length of the linear scale.