Applied Materials, Inc.
METHODS AND APPARATUS FOR CALIBRATING CONCENTRATION SENSORS FOR PRECURSOR DELIVERY

Abstract:

Methods and apparatus for controlling precursor flow are provided. In embodiments, the methods and apparatus apparatus for controlling precursor flow to a deposition chamber, includes: an ampoule to output a precursor a sensor assembly communicatively coupled to the ampoule; and a control system, wherein the control system is configured to calibrate the sensor assembly during flow of a precursor or a chemical standard through the sensor assembly.