Method and apparatus to help promote contact of gas with vaporized material
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-016/00
C23C-016/448
F17C-003/00
F17C-003/02
F17C-011/00
출원번호
US-0815805
(2015-07-31)
등록번호
US-9469898
(2016-10-18)
발명자
/ 주소
Gregg, John N.
Battle, Scott L.
Banton, Jeffrey I.
Naito, Donn K.
Laxman, Ravi K.
출원인 / 주소
ENTEGRIS, INC.
인용정보
피인용 횟수 :
0인용 특허 :
86
초록▼
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 compr
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 ampoule 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.
대표청구항▼
1. A vapor delivery vessel for vaporizing and delivering vaporized source material, the vessel comprising: a peripheral vessel wall bounding an interior volume;a gas inlet and a gas outlet arranged in at least intermittent fluid communication with the interior volume, the gas inlet being adapted to
1. A vapor delivery vessel for vaporizing and delivering vaporized source material, the vessel comprising: a peripheral vessel wall bounding an interior volume;a gas inlet and a gas outlet arranged in at least intermittent fluid communication with the interior volume, the gas inlet being adapted to supply a first gas to the interior volume; and at least one support surface disposed within the interior volume and adapted to support vaporizable source material in or along a flow path of said first gas within the interior volume, wherein the at least one support surface is partitioned with walls each extending upward from the at least one support surface to define a plurality of discrete support surface portions each arranged to support vaporizable material. 2. The vapor delivery vessel of claim 1, wherein the vessel has associated therewith at least one bypass passage, bypass inlet, or bypass outlet adapted to permit solid deposits or contaminants to be purged from the vessel or any conduit in fluid communication therewith. 3. The vapor delivery vessel of claim 1, wherein the vaporizable material comprises a solid. 4. The vapor delivery vessel of claim 3, wherein the solid vaporizable material comprises any of powder, agglomerated particles, and crystalline form. 5. The vapor delivery vessel of claim 4, wherein the solid vaporizable material comprises a film deposited on said at least one support surface. 6. The vapor delivery vessel of claim 1, wherein the vaporizable material comprises a liquid. 7. The vapor delivery vessel of claim 1, wherein the vaporizable material comprises a plurality of compositionally different vaporizable materials. 8. The vapor delivery vessel of claim 7, wherein at least two materials of said plurality of vaporizable materials are spatially segregated into distinct zones or regions of the interior volume. 9. The vapor delivery vessel of claim 1, further comprising at least one internal gas carrying member disposed within the interior volume and communicatively coupled to the gas inlet. 10. The vapor delivery vessel of claim 9, wherein said at least one internal gas carrying member extends through said at least one support surface. 11. The vapor delivery vessel of claim 9, wherein said internal gas carrying member comprises a threaded or press-fit portion insertable into an aperture defined in said at least one support surface. 12. The vapor delivery vessel of claim 1, further comprising structure disposed within the interior volume adapted to increase contact time of said first gas with said vaporizable source material, said structure comprising at least one vaporizable material support surface defining a plurality of passageways adapted to permit gas flow therethrough. 13. The vapor delivery vessel of claim 12, wherein said at least one support surface comprises a plurality of support surfaces defined by a plurality of holders including a plurality of passageways adapted to permit gas flow therethrough, wherein passageways defined in adjacent holders are unaligned. 14. The vapor delivery vessel of claim 1, wherein said at least one support surface is defined by at least one holder arranged within said vessel. 15. The vapor delivery vessel of claim 1, wherein said gas inlet and said gas outlet are arranged along a first end of said vessel. 16. The vapor delivery vessel of claim 1, further comprising a plurality of gas distribution passages adapted to direct the first gas within the interior volume. 17. The vapor delivery vessel of claim 1, wherein the at least one support surface is defined by a plurality of different support structures adapted for placement at different levels within the interior volume, and at least one support structure includes an upwardly extending sidewall and a plurality of upwardly-extending protuberances, wherein said sidewall is taller than each of said protuberances. 18. The vapor delivery vessel of claim 1 comprising at least one associated heating element. 19. The vapor delivery vessel of claim 18, wherein said at least one heating element is disposed around, in, or on said vessel. 20. The vapor delivery vessel of claim 1, wherein said at least one support surface is gas-permeable. 21. The vapor delivery vessel of claim 1, wherein said at least one support surface comprises any of a mesh and a metallic wool. 22. The vapor delivery vessel of claim 1, wherein said at least one support surface is defined in a holder that is removable from said vessel. 23. The vapor delivery vessel of claim 1, further comprising at least one gas flow meter communicatively coupled with any of said gas inlet and said gas outlet. 24. A method for delivering vaporized source material, comprising: supplying a first gas to the gas inlet of the vapor delivery vessel of claim 1, said vapor delivery vessel including therein said vaporizable material; heating the vessel to vaporize at least a portion of the vaporizable material; receiving a second gas from the gas outlet, said second gas comprising said first gas and said vaporized source material. 25. The method of claim 24, further comprising preheating said first gas prior to or during said supplying step. 26. The method of claim 24, further comprising the step of metering any of the first gas and the second gas. 27. The method of claim 24, further comprising the step of monitoring a temperature on or within any portion of the vessel, and applying heat to the vessel responsive to the monitoring step. 28. The method of claim 24, further comprising the step of depositing the vaporized source material using a deposition process selected from the group consisting of chemical vapor deposition, atomic layer deposition, plasma enhanced atomic layer deposition, metal organic chemical vapor deposition, plasma enhanced chemical vapor deposition, and ion implantation. 29. The method of claim 24, wherein the vaporizable source material comprises at least one of boron (B), phosphorous (P), copper (Cu), gallium (Ga), arsenic (As), ruthenium (Ru), indium (In), antimony (Sb), lanthanum (La), tantalum (Ta), iridium (Ir), decaborane (B10H14), hafnium tetrachloride (HfCl4), zirconium tetrachloride (ZrCl4), indium trichloride (InCl3), a metal organic β-diketonate complex, cyclopentadienyl cycloheptatrienyl titanium (CpTiChT), aluminum trichloride (AlCl3), titanium iodide (TixIy), cyclooctatetraene cyclopentadienyl titanium ((Cot)(Cp)Ti), bis(cyclopentadienyl)titanium diazide, tungsten carbonyl (Wx(CO)y), bis(cyclopentadienyl)ruthenium (II) (Ru(Cp)2), and ruthenium trichloride (RuCl3). 30. The method of claim 24, further comprising the step of contacting a semiconductor substrate with the vaporized material to form a film on the semiconductor substrate. 31. The method of claim 30, further comprising the step of processing the semiconductor substrate comprising the film to form a semiconductor.
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