Patent ID: 11923221
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC C  G  H

Claim 7:
8. A method comprising:
determining, by a master controller, a first flow setpoint for a flow of at least one of a process gas flow or a carrier gas flow through a first mass flow controller of a set of mass flow controllers fluidly coupled to a process chamber;
obtaining, by the master controller, a back pressure setpoint of a distribution manifold fluidly coupled to each of the set of mass flow controllers;
determining, by the master controller and in view of the determined first flow setpoint and the obtained back pressure setpoint, a second flow setpoint for at least one of the process gas flow or the carrier gas flow through at least one of a second mass flow controller of the set of mass flow controllers or a back pressure controller fluidly coupled to the distribution manifold;
controlling, by the master controller, at least one of the process gas flow or the carrier gas flow through the first mass flow controller to a first flow setpoint and at least one of the second mass flow controller or the back pressure controller to the second flow setpoint; and
controlling, by the master controller, a back pressure of the distribution manifold to the back pressure setpoint in view of a back pressure reading provided by a back pressure sensor of the distribution manifold.