Method and apparatus to help promote contact of gas with...

Gas and liquid contact apparatus – With external supply or removal of heat – Heat producer

Reexamination Certificate

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Details

C261S074000, C261S147000, C261SDIG065, C118S726000, C034S211000, C034S380000, C034S497000

Reexamination Certificate

active

07828274

ABSTRACT:
Vaporizable material is supported within a vessel to promote contact of an introduced gas with the vaporizable material, and produce a product gas including vaporized material. A heating element supplies heat to a wall of the vessel to heat vaporizable material disposed therein. The vessel may comprise an amoule having a removable top. Multiple containers defining multiple material support surfaces may be stacked disposed within a vessel in thermal communication with the vessel. A tube may be disposed within the vessel and coupled to a gas inlet. Filters, flow meters, and level sensors may be further provided. Product gas resulting from contact of introduced gas with vaporized material may be delivered to atomic layer deposition (ALD) or similar process equipment. At least a portion of source material including a solid may be dissolved in a solvent, followed by removal of solvent to yield source material (e.g., a metal complex) disposed within the vaporizer.

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