Patent ID: 8225745

Claim:
A system for depositing a material onto a semiconductor workpiece, comprising: a reaction chamber; a vaporizer having an injector; a chamber inlet valve through which a vapor flows from the vaporizer to the reaction chamber; a precursor supply valve through which a precursor flows to the injector; a solvent inlet valve through which a solvent flows to the vaporizer; and a controller operably coupled to the injector, the chamber inlet valve, the precursor supply valve, and the solvent inlet valve, the controller having a computer-readable medium containing instructions that cause the controller to perform a method comprising closing the chamber inlet valve and the precursor supply valve; and thereafter, opening the solvent inlet valve to introduce an amount of the solvent into the vaporizer, the amount of the solvent being sufficient such that an equilibrium between a vapor phase and a liquid phase of the solvent co-exist in the vaporizer.