Precursor delivery systems, precursor supply packages, and related methods
Some embodiments relate to precursor delivery systems for producing gas precursors. The precursor delivery system may include one or more precursor supply packages containing a solid precursor material. The one or more precursor supply packages may be configured to heat the solid precursor material to a temperature sufficient to result in thermal decomposition of the solid precursor material. The thermal decomposition of the solid precursor material may produce a gas precursor. The gas precursor may be supplied to a gas precursor-utilizing process. Further embodiments relate to precursor supply packages and related methods.
1. A precursor delivery system comprising:
a plurality of precursor supply packages, each of the plurality of precursor supply packages comprising:
a vessel body containing a solid precursor material, wherein the solid precursor material has a formula MPF6, wherein M is Li, Na, K, Rb, Cs, or Ag;
a heater configured to heat the vessel body to a temperature sufficient to produce a gas precursor by thermal decomposition of the solid precursor material wherein the gas precursor comprises PF5; and
an outlet fluidly connected to the vessel body;
a manifold fluidly connected to the plurality of precursor supply packages; and an outlet fluidly connected to the manifold;
the manifold is configured to switch from withdrawing the gas precursor from one of the precursor supply packages to withdrawing the gas precursor from another of the precursor supply packages in response to a pressure sensing signal, wherein the pressure sensing signal is configured to initiate heating to the another precursor supply package.
2. The precursor delivery system of claim 1 , wherein the solid precursor material includes at least one of LiPF 6 , NaPF 6 , KPF 6 , RbPF 6 , CsPF 6 , AgPF 6 , or any combination thereof.
3. The precursor delivery system of claim 1 , wherein at least one heater is configured to heat at least one vessel body to a temperature that is greater than a thermal decomposition temperature of the solid precursor material.
4. The precursor delivery system of claim 1 , wherein at least one heater is configured to maintain at least one vessel body at a temperature that is greater than a thermal decomposition temperature of the solid precursor material.
5. The precursor delivery system of claim 1 , wherein the manifold is configured to control withdrawal of the gas precursor from each of the plurality of precursor supply packages.
6. The precursor delivery system of claim 1 , further comprising a pressure transducer.
7. The precursor delivery system of claim 6 , wherein a pressure below a set pressure as determined by the pressure transducer indicates the solid precursor material, which is contained in the vessel body of the precursor supply package producing the gas precursor, is depleted.
8. The precursor delivery system of claim 1 , further comprising a pressure regulator valve.
9. The precursor delivery system of claim 8 , wherein the pressure regulator valve is configured to maintain a pressure of the gas precursor through the outlet at or below atmospheric pressure.