Patent ID: 8733279
Filing Date: 2014-05-27
Classification: C23C,H01J

Abstract:
1. A plasma enhanced chemical vapor deposition apparatus, comprising: a chamber body; a backing plate coupled with the chamber body and enclosing a processing area of sufficient size to process large area substrates; a frame structure disposed outside the processing area and outside the chamber body, such that at least a portion of the frame structure is disposed above both the backing plate and the chamber body and is accessible externally to the backing plate and the chamber body, wherein the frame structure is coupled with a center area of the backing plate and supports the center area; and a lid body coupled to the chamber body, the lid body at least partially supporting the backing plate, and wherein the frame structure further comprises: a plurality of legs coupled with at least one of the lid body and the chamber body, and extending above at least a portion of the chamber body; a bridge section spanning the backing plate and supported above the backing plate by the plurality of legs, the bridge section having a center area disposed a distance above the center area of the backing plate; and a support element suspended below the center area of the bridge section, and coupled between the center area of the bridge section and the center area of the backing plate, wherein the support element is coupled with the center area of the backing plate by at least a first fastener, and the support element is coupled with the center area of the bridge section by at least a second fastener.