Coin-slot and ball-lock ceramic lift pin holders

Abstract

A first lift pin holder assembly includes a base portion and a stem portion including a ball lock mechanism to hold a lift pin. A second lift pin holder assembly includes a base portion and a stem portion including a fork lock mechanism to hold a lift pin. A slotted ring with coin-slot type slots is arranged on abase of a substrate support assembly. A plurality of the first or second lift pin holder assemblies are retained in the slots using retainers that surround the base portions of the lift pin holder assemblies. Each slot includes an aperture in which a T-shaped retainer is inserted. The top portion of the T-shaped retainer prevents the retainer and the lift pin holder assembly from sliding out of the slot. The lift pin, the lift pin holder assemblies, the retainers, the T-shaped retainer, and the slotted ring are made of ceramic materials.

Dependencies are inferred from the claim text.