Patent ID: 9384948
Filing Date: 2016-07-05
CPC Classification: H01J

Claim Text:
1. A plasma processing system including a substrate support, comprising, a chamber for plasma processing a substrate when disposed over the substrate support of the chamber, the chamber having a ceramic window oriented over the substrate support; a transformer coupled plasma (TCP) coil defined by an inner coil and an outer coil, the TCP coil disposed over the ceramic window; a ceramic support disposed over to the TCP coil, the ceramic support includes a plurality of spokes that extend from a center region to an outer periphery, each of the spokes include a hammerhead shape that radially expands the ceramic support in a direction that is away from an axis of a spoke; and a plurality of screws connecting TCP coil to the ceramic support, wherein at least a pair of screws connected to the outer coil are radially offset from each other and one of the pair of screws is disposed in the hammerhead shape; wherein the ceramic support, using the plurality of screws, support the TCP coil over the ceramic window of the chamber.