Patent ID: 11939668
Assignee: APPLIED MATERIALS, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 9:
10. A method of forming a tungsten-containing layer, the method comprising:
a) positioning a substrate on a substrate support in a process volume of a process chamber;
b) providing a precursor gas to the process volume of the process chamber for a first duration; and
c) providing a tungsten-containing gas to the process volume of the process chamber by opening a pulsing valve on a tungsten-containing gas delivery line for a second duration occurring after the first duration to form a tungsten-containing layer on the substrate, wherein
the tungsten-containing gas delivery line includes a first section connected to an inlet of the pulsing valve and a second section connected to an outlet of the pulsing valve,
the first section connects the inlet of the pulsing valve to a reservoir of tungsten-containing gas, and
the second section connects the outlet of the pulsing valve to an inlet of the process volume of the process chamber; and

providing a carrier gas to the second section of the tungsten-containing gas delivery line without providing the carrier gas to the first section of the tungsten-containing gas delivery line.