US 7,516,833 B2
Multi-station workpiece processors, methods of processing semiconductor workpieces within multi-station workpiece processors, and methods of moving semiconductor workpieces within multi-station workpiece processors
Ryoji Todaka, Shanghai (China)
Assigned to Advanced Micro-Fabrication Equipment, Inc. Asia, George Town, Grand Cayman (Cayman Islands)
Filed on Feb. 09, 2006, as Appl. No. 11/351,786.
Claims priority of application No. 2005 1 0028667 (CN), filed on Aug. 11, 2005.
Prior Publication US 2007/0034479 A1, Feb. 15, 2007
Int. Cl. B65G 15/64 (2006.01)
U.S. Cl. 198—345.1  [414/222.01; 414/223.01; 414/744.1; 118/729] 29 Claims
OG exemplary drawing
 
1. A multi-station workpiece processor, comprising:
a processing chamber comprising multiple stations for processing individual workpieces;
a plurality of pedestals, each pedestal associated with individual of the stations, the pedestals being mounted for selective vertical up movement within the chamber to contact a workpiece and for selective vertical down movement within the chamber to be displaced from a workpiece, each of the pedestals respectively comprising an upper surface upon which an individual workpiece is received during processing within the chamber, each of the pedestals further comprising a plurality of lift pins mounted for vertical up and down movement independent of the movement of the respective pedestal; and
at least one workpiece engagement arm associated with individual of the pedestals, the workpiece engagement arms being movable between a position received at least partially over individual of the pedestals and a position displaced away from over all of the pedestals.