Patent ID: 9230846
Filing Date: 2016-01-05
CPC Classification: C23C,H01L

Claim Text:
1. A wafer carrier for a plurality of wafers, the wafer carrier comprising: a platen with a plurality of compartments, the platen configured to rotate about a first axis; a plurality of wafer platforms, each of the wafer platforms associated with one of the compartments and configured to rotate about a respective second axis relative to the respective compartment, and the platen and the wafer platforms rotate with different angular velocities to create planetary motion therebetween; a drive shaft; a plurality of first gears, each of the first gears attached to one of the wafer platforms; and a second gear meshed with each of the first gears, the second gear being coupled with the drive shaft to be rotated by the drive shaft and transfer the rotation to the first gears to cause powered rotation of the wafer platforms.