Lam Research Corporation
Carrier plate for use in plasma processing systems

Abstract:

A carrier plate for receiving a wafer includes a pocket defined in a middle section on a top surface of the carrier plate and has a surface diameter. The pocket defines a substrate support region. A retaining feature of the carrier plate is defined at an outer edge of the pocket. A tapered portion of the carrier plate extends from the retaining feature to an outer diameter. The tapered portion is configured to receive a focus ring. A bottom surface of the carrier plate is configured to sit over a pedestal that is used in a process chamber. A plurality of wafer supports is disposed on a top surface of the substrate support region to support the wafer, when received.