Patent ID: 8293013

Claim:
An apparatus for deploying gases into a reaction chamber, comprising: a segmented showerhead comprising at least two segments, each segment further comprising: a first distribution network being formed on a plate having a distribution face and a dispensing face, the first distribution network defined by a plurality of channels on the distribution face, the plurality of channels having a plurality of channel thru-ports extending from the plurality of channels to the dispensing face; and a gasket pressed onto the distribution face, wherein the gasket comprises a plurality of cut-outs through the gasket forming a gasket network; an internal network comprising passages formed below the plurality of channels and above the dispensing face, a set of internal network ports extending from the passages to the distribution face and a set of internal network thru-ports extending from a top surface of the distribution face to the dispensing face; wherein the set of internal network ports and the set of internal network thru-ports align with the gasket network.