Patent ID: 11859281
Assignee: APPLIED MATERIALS, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 16:
17. A method of providing a flow of precursor, the method comprising:
flowing a carrier gas through an inlet port and an inlet plenum of an ampoule having a low vapor pressure precursor therein;
directing the flow of the carrier gas within the ampoule and in contact with the precursor through a flow path defined by a plurality of elongate walls and ingress openings of each of the elongate walls, through which a carrier gas flows in contact with the precursor, the plurality of elongate walls defining an outermost channel and an innermost channel, the carrier gas flowing through the outermost channel to the innermost channel; and
flowing the carrier gas and precursor out of the ampoule through an outlet plenum and an outlet port, wherein the outlet plenum is closer to a radial center of the ampoule than the inlet plenum.