Patent ID: 11970775
Assignee: APPLIED MATERIALS, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 8:
9. A showerhead assembly for depositing multiple materials on a substrate, comprising:
a first gas delivery portion having a first body, a first inlet, and a plurality of first tubes extending from an inner surface of the first body that together define a first plenum, wherein each tube of the plurality of first tubes includes a plurality of first holes, and wherein the plurality of first tubes vary in length across a width of the showerhead assembly;
a second gas delivery portion having a second body, a second inlet, and a plurality of second tubes extending from an inner surface of the second body that together define a second plenum fluidly independent from the first plenum, wherein each tube of the plurality of second tubes includes a plurality of second holes, wherein the plurality of second tubes vary in length across the width of the showerhead assembly, and wherein the plurality of first tubes are disposed in an alternating pattern with the plurality of second tubes across the width of the showerhead assembly;
and
a heat sink disposed between the plurality of first tubes and the plurality of second tubes, wherein the heat sink includes a plate and fins extending from the plate, and wherein the fins comprise a thermally anisotropic material and the plate comprises a conductive material different than the thermally anisotropic material.