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

Claim 14:
15. A method comprising:
providing, by a master controller, a carrier gas via a carrier gas supply and a process gas via a process gas supply to a distribution manifold operationally coupled to a process chamber and each of a set of mass flow controllers;
determining, by the master controller and in view of a target flow ratio for at least one of a process gas flow or a carrier gas flow through one or more of the set of mass flow controllers or a back pressure controller and a back pressure setpoint, a first flow setpoint associated with a first mass flow controller of the set of mass flow controllers and a second flow setpoint associated with at least one of a second mass flow controller of the set of mass flow controllers or a the back pressure controller;
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 the first flow setpoint and at least one of the second mass flow controller or the back pressure controller to the second flow setpoint;
receiving, by the master controller, an indication of a back pressure of the distribution manifold from a back pressure sensor; and
controlling, by the master controller, the back pressure of the distribution manifold to the back pressure setpoint in view of the indication received from the back pressure sensor.