Chemical delivery system and method of operating the chemical delivery system
A chemical delivery system includes a bulk container, a run/refill chamber, a first conduit and a second conduit. The bulk container stores a precursor. The run/refill chamber includes a plurality of spaced tubes having a plurality of surfaces for receiving the precursor in vapor form and storing the precursor in solid form. The first conduit connects the bulk container to the run/refill chamber for transporting the precursor from the bulk container to the run/refill chamber in vapor form. The second conduit connects the run/refill chamber to a deposition chamber for transporting the precursor from the run/refill chamber to the deposition chamber in vapor form.
1. A chemical delivery system comprising:
at least one bulk container configured to store a precursor;
at least one run/refill chamber comprising a plurality of spaced apart tubes to receive the precursor in vapor form and store the precursor in solid form, the spaced apart tubes surrounded by heat transfer fluid;
at least one deposition chamber to receive sublimed precursor from the run/refill chamber(s);
a first conduit connecting the bulk container to the run/refill chamber(s) for transporting the precursor from the bulk container to the run/refill chamber(s) in vapor form; and
a second conduit for transporting sublimed precursor from the run/refill chamber(s) to the deposition chamber(s) in vapor form.
2. The chemical delivery system of claim 1 , wherein the bulk container is configured to store the precursor in solid form and to be heated to sublimate the precursor.
3. The chemical delivery system of claim 1 , wherein the first conduit and the second conduit are configured to be heated.
4. The chemical delivery system of claim 1 , wherein the run/refill chamber(s) are located in a fabrication area, and the bulk container is located outside the fabrication area.
5. The chemical delivery system of claim 1 , wherein each of the plurality of spaced apart tubes has a circular cross section, a rectangular cross section, or a star-shaped cross section.
6. The chemical delivery system of claim 1 , wherein each of the plurality of spaced apart tubes is filled with a foam.