Patent ID: 6740586
Filing Date: 2004-05-25
Classification: B01D,C23C,H01L

Abstract:
A vapor delivery system for vaporization and delivery of a precursor, comprising:a) a sealable housing comprising an internal chamber; b) a gas inlet port in fluid communication with the internal chamber for introducing a carrier gas; c) a first rotatable spool positioned adjacent to the housing; d) a wire coated with a sublimatable solid precursor material having one end connected to first rotatable spool and spooled thereon; e) a heating means communicatively connected to the internal chamber to heat at least a portion of the internal chamber thereby providing a heated area at the sublimation temperature of the sublimatable solid precursor material; f) at least one drive mechanism for unspooling and moving the coated wire through the heated area wherein the sublimatable solid precursor material is vaporized forming a precursor gas and a substantially uncoated wire; and g) a gas outlet port for passage of the precursor gas from the internal chamber to a downstream processing unit.