Patents by Inventor Demetrius Sarigiannis
Demetrius Sarigiannis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8257497Abstract: Systems and methods for insitu post atomic layer deposition (ALD) destruction of active species are provided. ALD processes deposit multiple atomic layers on a substrate. Pre-cursor gases typically enter a reactor and react with the substrate resulting in a monolayer of atoms. After the remaining gas is purged from the reactor, a second pre-cursor gas enters the reactor and the process is repeated. The active species of some pre-cursor gases do not readily purge from the reactor, thus increasing purge time and decreasing throughput. A high-temperature surface placed in the reactor downstream from the substrate substantially destroys the active species insitu. Substantially destroying the active species allows the reactor to be readily purged, increasing throughput.Type: GrantFiled: December 10, 2004Date of Patent: September 4, 2012Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Shuang Meng, Garo J Derderian
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Patent number: 8235364Abstract: This invention relates to a vapor or liquid phase reagent dispensing apparatus that may be used for dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices. The vapor phase reagent dispensing apparatus has a single port capable of receiving a carrier gas and dispensing a vapor phase reagent. The liquid phase reagent dispensing apparatus has a single port capable of receiving an inert gas and dispensing a liquid phase reagent.Type: GrantFiled: November 4, 2009Date of Patent: August 7, 2012Assignee: Praxair Technology, Inc.Inventors: Demetrius Sarigiannis, M. Mushtaq Ahmed
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Patent number: 7947597Abstract: Some embodiments include methods of titanium deposition in which a silicon-containing surface and an electrically insulative surface are both exposed to titanium-containing material, and in which such exposure forms titanium silicide from the silicon-containing surface while not depositing titanium onto the electrically insulative surface. The embodiments may include atomic layer deposition processes, and may include a hydrogen pre-treatment of the silicon-containing surfaces to activate the surfaces for reaction with the titanium-containing material. Some embodiments include methods of titanium deposition in which a semiconductor material surface and an electrically insulative surface are both exposed to titanium-containing material, and in which a titanium-containing film is uniformly deposited across both surfaces.Type: GrantFiled: March 9, 2010Date of Patent: May 24, 2011Assignee: Micron Technology, Inc.Inventors: Joel A. Drewes, Cem Basceri, Demetrius Sarigiannis
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Patent number: 7794787Abstract: The invention includes methods of utilizing supercritical fluids to introduce precursors into reaction chambers. In some aspects, a supercritical fluid is utilized to introduce at least one precursor into a chamber during ALD, and in particular aspects the supercritical fluid is utilized to introduce multiple precursors into the reaction chamber during ALD. The invention can be utilized to form any of various materials, including metal-containing materials, such as, for example, metal oxides, metal nitrides, and materials consisting of metal. Metal oxides can be formed by utilizing a supercritical fluid can be utilized to introduce a metal-containing precursor into reaction chamber, with the precursor then forming a metal-containing layer over a surface of a substrate. Subsequently, the metal-containing layer can be reacted with oxygen to convert at least some of the metal within the layer to metal oxide.Type: GrantFiled: May 7, 2009Date of Patent: September 14, 2010Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri
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Publication number: 20100167542Abstract: Some embodiments include methods of titanium deposition in which a silicon-containing surface and an electrically insulative surface are both exposed to titanium-containing material, and in which such exposure forms titanium silicide from the silicon-containing surface while not depositing titanium onto the electrically insulative surface. The embodiments may include atomic layer deposition processes, and may include a hydrogen pre-treatment of the silicon-containing surfaces to activate the surfaces for reaction with the titanium-containing material. Some embodiments include methods of titanium deposition in which a semiconductor material surface and an electrically insulative surface are both exposed to titanium-containing material, and in which a titanium-containing film is uniformly deposited across both surfaces.Type: ApplicationFiled: March 9, 2010Publication date: July 1, 2010Applicant: MICRON TECHNOLOGY, INC.Inventors: Joel A. Drewes, Cem Basceri, Demetrius Sarigiannis
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Publication number: 20100117246Abstract: This invention relates to a vapor or liquid phase reagent dispensing apparatus that may be used for dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices. The vapor phase reagent dispensing apparatus has a single port capable of receiving a carrier gas and dispensing a vapor phase reagent. The liquid phase reagent dispensing apparatus has a single port capable of receiving an inert gas and dispensing a liquid phase reagent.Type: ApplicationFiled: November 4, 2009Publication date: May 13, 2010Inventors: Demetrius Sarigiannis, M. Mushtaq Ahmed
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Patent number: 7700480Abstract: Some embodiments include methods of titanium deposition in which a silicon-containing surface and an electrically insulative surface are both exposed to titanium-containing material, and in which such exposure forms titanium silicide from the silicon-containing surface while not depositing titanium onto the electrically insulative surface. The embodiments may include atomic layer deposition processes, and may include a hydrogen pre-treatment of the silicon-containing surfaces to activate the surfaces for reaction with the titanium-containing material. Some embodiments include methods of titanium deposition in which a semiconductor material surface and an electrically insulative surface are both exposed to titanium-containing material, and in which a titanium-containing film is uniformly deposited across both surfaces.Type: GrantFiled: April 27, 2007Date of Patent: April 20, 2010Assignee: Micron Technology, Inc.Inventors: Joel A. Drewes, Cem Basceri, Demetrius Sarigiannis
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Patent number: 7611971Abstract: A method of reducing the amount of halogenated materials in a halogen-containing environment. The method comprises introducing an aluminum compound into the halogen-containing environment, reacting the aluminum compound with the halogenated material to form a gaseous reaction product, and removing the gaseous reaction product from the environment. The aluminum compound may be a trialkylaluminum compound, an alane, an alkylaluminum hydride, an alkylaluminum halide, an alkylaluminum sesquihalide, or an aluminum sesquihalide. The aluminum compound may alternatively form a solid aluminum product, which is deposited on a surface associated with the halogen-containing environment or onto a semiconductor disposed therewithin. The halogenated material is incorporated into the solid aluminum product, forming an inert film within which the halogenated material is trapped.Type: GrantFiled: June 21, 2006Date of Patent: November 3, 2009Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Cem Basceri, Christopher W. Hill, Garo J. Derderian
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Publication number: 20090214779Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: February 12, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090211525Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: February 12, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090214777Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: January 26, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090214778Abstract: This invention relates to an integrated vapor or liquid phase reagent dispensing apparatus having a plurality of vessels and a plurality of carrier or inert gas feed/vapor or liquid phase reagent delivery manifolds, that may be used for continuously dispensing vapor or liquid phase reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices.Type: ApplicationFiled: February 12, 2009Publication date: August 27, 2009Inventors: Demetrius Sarigiannis, Cynthia A. Hoover, Michael Joseph Krause, Edward Pryor, Stephen Chesters, Ronald Spohn
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Publication number: 20090215252Abstract: The invention includes methods of utilizing supercritical fluids to introduce precursors into reaction chambers. In some aspects, a supercritical fluid is utilized to introduce at least one precursor into a chamber during ALD, and in particular aspects the supercritical fluid is utilized to introduce multiple precursors into the reaction chamber during ALD. The invention can be utilized to form any of various materials, including metal-containing materials, such as, for example, metal oxides, metal nitrides, and materials consisting of metal. Metal oxides can be formed by utilizing a supercritical fluid can be utilized to introduce a metal-containing precursor into reaction chamber, with the precursor then forming a metal-containing layer over a surface of a substrate. Subsequently, the metal-containing layer can be reacted with oxygen to convert at least some of the metal within the layer to metal oxide.Type: ApplicationFiled: May 7, 2009Publication date: August 27, 2009Applicant: MICRON TECHNOLOGY, INC.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri
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Publication number: 20090169781Abstract: A pyrolytic boron-nitride material is disclosed having an in-plane thermal conductivity of no more than about 30 W/m-K and a through-plane thermal conductivity of no more than about 2 W/m-K. The density is less than 1.85 g/cc.Type: ApplicationFiled: December 31, 2007Publication date: July 2, 2009Inventors: Marc Schaepkens, Demetrius Sarigiannis, Douglas Longworth
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Patent number: 7544388Abstract: The invention includes methods of utilizing supercritical fluids to introduce precursors into reaction chambers. In some aspects, a supercritical fluid is utilized to introduce at least one precursor into a chamber during ALD, and in particular aspects the supercritical fluid is utilized to introduce multiple precursors into the reaction chamber during ALD. The invention can be utilized to form any of various materials, including metal-containing materials, such as, for example, metal oxides, metal nitrides, and materials consisting of metal. Metal oxides can be formed by utilizing a supercritical fluid can be utilized to introduce a metal-containing precursor into reaction chamber, with the precursor then forming a metal-containing layer over a surface of a substrate. Subsequently, the metal-containing layer can be reacted with oxygen to convert at least some of the metal within the layer to metal oxide.Type: GrantFiled: April 13, 2006Date of Patent: June 9, 2009Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri
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Patent number: 7498057Abstract: A deposition method includes positioning a substrate within a deposition chamber defined at least in part by chamber walls. At least one of the chamber walls comprises a chamber surface having a plurality of purge gas inlets to the chamber therein. A process gas is provided over the substrate effective to deposit a layer onto the substrate. During such providing, a material adheres to the chamber surface. Reactive purge gas is emitted to the deposition chamber from the purge gas inlets effective to form a reactive gas curtain over the chamber surface and away from the substrate, with such reactive gas reacting with such adhering material. Further implementations are contemplated.Type: GrantFiled: March 8, 2005Date of Patent: March 3, 2009Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri, Gurtej S. Sandhu, F. Daniel Gealy, Chris M. Carlson
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Publication number: 20080268633Abstract: Some embodiments include methods of titanium deposition in which a silicon-containing surface and an electrically insulative surface are both exposed to titanium-containing material, and in which such exposure forms titanium suicide from the silicon-containing surface while not depositing titanium onto the electrically insulative surface. The embodiments may include atomic layer deposition processes, and may include a hydrogen pre-treatment of the silicon-containing surfaces to activate the surfaces for reaction with the titanium-containing material. Some embodiments include methods of titanium deposition in which a semiconductor material surface and an electrically insulative surface are both exposed to titanium-containing material, and in which a titanium-containing film is uniformly deposited across both surfaces.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Inventors: Joel A. Drewes, Cem Basceri, Demetrius Sarigiannis
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Publication number: 20080241386Abstract: The invention includes an atomic layer deposition method of forming a layer of a deposited composition on a substrate. The method includes positioning a semiconductor substrate within an atomic layer deposition chamber. On the substrate, an intermediate composition monolayer is formed, followed by a desired deposited composition from reaction with the intermediate composition, collectively from flowing multiple different composition deposition precursors to the substrate within the deposition chamber. A material adheres to a chamber internal component surface from such sequentially forming. After such sequentially forming, a reactive gas flows to the chamber which is different in composition from the multiple different deposition precursors and which is effective to react with such adhering material. After the reactive gas flowing, such sequentially forming is repeated. Further implementations are contemplated.Type: ApplicationFiled: May 5, 2008Publication date: October 2, 2008Applicant: MICRON TECHNOLOGY, INC.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri, Gurtej S. Sandhu, F. Daniel Gealy, Chris M. Carlson
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Patent number: 7378354Abstract: The invention includes an atomic layer deposition method of forming a layer of a deposited composition on a substrate. The method includes positioning a semiconductor substrate within an atomic layer deposition chamber. On the substrate, an intermediate composition monolayer is formed, followed by a desired deposited composition from reaction with the intermediate composition, collectively from flowing multiple different composition deposition precursors to the substrate within the deposition chamber. A material adheres to a chamber internal component surface from such sequentially forming. After such sequentially forming, a reactive gas flows to the chamber which is different in composition from the multiple different deposition precursors and which is effective to react with such adhering material. After the reactive gas flowing, such sequentially forming is repeated. Further implementations are contemplated.Type: GrantFiled: April 28, 2006Date of Patent: May 27, 2008Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Garo J. Derderian, Cem Basceri, Gurtej S. Sandhu, F. Daniel Gealy, Chris M. Carlson
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Patent number: 7368381Abstract: The invention includes methods of forming films over substrates. A substrate is provided within a reaction chamber, and a mixture is also provided within the chamber. The mixture includes a precursor of a desired material within a supercritical fluid. The precursor is relatively reactive under one set of conditions and is relatively non-reactive under another set of conditions. The precursor and supercritical fluid mixture is initially provided in the chamber under the conditions at which the precursor is relatively non-reactive. Subsequently, and while maintaining the supercritical state of the supercritical fluid, the conditions within the reaction chamber are changed to the conditions under which the precursor is relatively reactive. The precursor reacts to form the desired material, and at least some of the desired material forms a film on the substrate.Type: GrantFiled: April 28, 2006Date of Patent: May 6, 2008Assignee: Micron Technology, Inc.Inventors: Demetrius Sarigiannis, Garo J Derderian, Cem Basceri