Patent ID: 7722719

Claim:
A gas distributor for use in a processing chamber, the gas distributor comprising: a body having a threaded section configured to be coupled with a gas supply, the body also having a distal face and a central section extending between the threaded section and the distal face, the body further including a gas inlet, a plurality of gas outlets and a gas passage extending through the threaded section and the central section connecting the gas inlet to the plurality of gas outlets, the body further including a lateral seat disposed between the threaded section and the central section, the lateral seat extending outward from the body to an outer periphery of the lateral seat, wherein the central section includes a concavely curved gas deflecting surface extending from the outer periphery of the lateral seat outward from the body and toward the distal face, and wherein the distal face includes a continuous surface having a central flat portion and a recessed peripheral flat portion separated from the central flat portion by an inclined step surface, wherein the central flat portion extends radially from a center of the distal face to the inclined step surface and has a diameter of between about 0.01 to 3 inches, and the recessed peripheral flat portion is recessed relative to the central flat portion and the plurality of gas outlets are disposed in the inclined step surface.