Patent ID: 6663716
Filing Date: 2003-12-16
Classification: C23C

Abstract:
A method for depositing a thin film over a substrate surface, comprising the steps of:dispensing a precursor from a reservoir into a vaporization chamber having a first heater the reservoir having a first sensor to monitor a condition of the precursor; measuring a vapor pressure of a vaporized precursor; controlling a rate at which the precursor is vaporized in response to the measured vapor pressure including controlling a dispense rate of precursor in the reservoir; controlling a flow rate of the vaporized precursor with a flow controller, the flow controller having a second heater, a second sensor, a laminar flow element and a third sensor; delivering the vaporized precursor into a process chamber from the flow controller along a heated delivery conduit; and depositing the vaporized precursor in a thin film at a surface of the substrate.