Patents by Inventor John Giles Langan
John Giles Langan 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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Publication number: 20180047898Abstract: A process for forming a resistive random-access memory device, the process comprising the steps of: depositing a first electrode on a substrate; forming a porous resistive memory material layer on the first electrode, wherein the porous resistive memory layer is formed by (i) depositing a gaseous composition comprising a silicon precursor and a porogen precursor and, once deposited, (ii) removing the porogen precursor by exposing the composition to UV radiation; and depositing a second electrode on top of the porous resistive memory material layer.Type: ApplicationFiled: March 8, 2016Publication date: February 15, 2018Inventors: Robert Gordon RIDGEWAY, Michael T. SAVO, Raymond Nicholas VRTIS, William Robert ENTLEY, Xinjian LEI, John Giles LANGAN
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Publication number: 20130341178Abstract: A highly pure nitrogen fluoride process fluid having an impurity content of 10 ppm or less can be effectively obtained by using radiation to cause the dissociation of chemical bonds in the impurity to form dissociation products and thereby make the removal of the dissociation products from the process fluid easier than the removal of the impurity from the process fluid.Type: ApplicationFiled: June 7, 2013Publication date: December 26, 2013Inventors: Andrew David Johnson, John Giles Langan
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Patent number: 8535760Abstract: Chemical additives are used to increase the rate of deposition for the amorphous silicon film (?Si:H) and/or the microcrystalline silicon film (?CSi:H). The electrical current is improved to generate solar grade films as photoconductive films used in the manufacturing of Thin Film based Photovoltaic (TFPV) devices.Type: GrantFiled: August 31, 2010Date of Patent: September 17, 2013Assignee: Air Products and Chemicals, Inc.Inventors: Patrick Timothy Hurley, Robert Gordon Ridgeway, Katherine Anne Hutchison, John Giles Langan
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Patent number: 8283260Abstract: A method for preparing an interlayer dielectric to minimize damage to the interlayer's dielectric properties, the method comprising the steps of: depositing a layer of a silicon-containing dielectric material onto a substrate, wherein the layer has a first dielectric constant and wherein the layer has at least one surface; providing an etched pattern in the layer by a method that includes at least one etch process and exposure to a wet chemical composition to provide an etched layer, wherein the etched layer has a second dielectric constant, and wherein the wet chemical composition contributes from 0 to 40% of the second dielectric constant; contacting the at least one surface of the layer with a silicon-containing fluid; optionally removing a first portion of the silicon-containing fluid such that a second portion of the silicon-containing fluid remains in contact with the at least one surface of the layer; and exposing the at least one surface of the layer to UV radiation and thermal energy, wherein the layType: GrantFiled: August 13, 2009Date of Patent: October 9, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Scott Jeffrey Weigel, Mark Leonard O'Neill, Mary Kathryn Haas, Laura M. Matz, Glenn Michael Mitchell, Aiping Wu, Raymond Nicholas Vrtis, John Giles Langan
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Publication number: 20110061733Abstract: The objective of this invention is to use chemical additives to increase the rate of deposition processes for the amorphous silicon film (?Si:H) and/or the microcrystalline silicon film (?CSi:H), and improve the electrical current generating capability of the deposited films for photoconductive films used in the manufacturing of Thin Film based Photovoltaic (TFPV) devices.Type: ApplicationFiled: August 31, 2010Publication date: March 17, 2011Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: Patrick Timothy Hurley, Robert Gordon Ridgeway, Katherine Anne Hutchison, John Giles Langan
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Publication number: 20100041234Abstract: A method for preparing an interlayer dielectric to minimize damage to the interlayer's dielectric properties, the method comprising the steps of: depositing a layer of a silicon-containing dielectric material onto a substrate, wherein the layer has a first dielectric constant and wherein the layer has at least one surface; providing an etched pattern in the layer by a method that includes at least one etch process and exposure to a wet chemical composition to provide an etched layer, wherein the etched layer has a second dielectric constant, and wherein the wet chemical composition contributes from 0 to 40% of the second dielectric constant; contacting the at least one surface of the layer with a silicon-containing fluid; optionally removing a first portion of the silicon-containing fluid such that a second portion of the silicon-containing fluid remains in contact with the at least one surface of the layer; and exposing the at least one surface of the layer to UV radiation and thermal energy, wherein the layType: ApplicationFiled: August 13, 2009Publication date: February 18, 2010Applicant: Air Products and Chemicals, Inc.Inventors: Scott Jeffrey Weigel, Mark Leonard O'Neill, Mary Kathryn Haas, Laura M. Matz, Glenn Michael Mitchell, Aiping Wu, Raymond Nicholas Vrtis, John Giles Langan
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Patent number: 7013916Abstract: An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressurized container is open to an interior chamber of the pressurized container. A fluid discharge path is located in the valve body, between the outlet orifice of the pressurized container and an outlet orifice of the valve body. A pressure regulator having a pressure sensing means capable of responding to sub-atomospheric pressure, is integral to the valve body, in-line in the fluid discharge path with the pressure regulator pre-set to a pressure below atmospheric pressure to allow the gas to be delivered through the regulator from the interior chamber only when the pressure regulator senses a downstream pressure at or below the pre-set pressure.Type: GrantFiled: August 18, 2000Date of Patent: March 21, 2006Assignee: Air Products and Chemicals, Inc.Inventors: Ronald Martin Pearlstein, John Giles Langan, Dao-Hong Zheng, John Irven, Benjamin Lee Hertzler
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Patent number: 6837250Abstract: A method of using PFCs recovered from the effluent of a CVD chamber cleaning process as an influent for the cleaning process is provided which includes the steps of selecting a first PFC gas mixture having a first ratio of C2F6 to CF4, providing the first PFC gas mixture as the influent gas to the CVD chamber to create a CVD chamber effluent gas of a second PFC gas mixture having a second ratio of C2F6 to CF4, adding virgin C2F6 or CF4 to the CVD chamber effluent gas in sufficient quantity to create a third PFC gas mixture having the first ratio of C2F6 to CF4, and using the third PFC gas mixture as the influent gas to the CVD chamber.Type: GrantFiled: February 27, 2002Date of Patent: January 4, 2005Assignee: Air Products and Chemicals, Inc.Inventors: John Giles Langan, Andrew David Johnson
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Patent number: 6686594Abstract: An on-line halogen analyzer system and method of use for semiconductor processing effluent monitoring. The system includes sampling the effluent stream into an absorption cell, and passing UV-Visible light through the effluent sample in the cell. After passing through the sample the light is collected by a photo detector for real-time wavelength-selective absorption analysis. The system provides simultaneous determination of the concentrations of multiple halogen gases (e.g. F2, Cl2, Br2, and I2) in semiconductor processing effluent streams. The invention can be used for chemical vapor deposition (CVD) chamber cleaning endpoint determination and to improve fluorine utilization efficiency in remote plasma downstream CVD chamber cleaning processes.Type: GrantFiled: October 29, 2001Date of Patent: February 3, 2004Assignee: Air Products and Chemicals, Inc.Inventors: Bing Ji, Robert Gordon Ridgeway, Eugene Joseph Karwacki, Jr., Howard Paul Withers, Jr., Steven Arthur Rogers, Peter James Maroulis, John Giles Langan
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Patent number: 6637998Abstract: A mobile, self-evacuating, micro-environment system for transit and storage of substrates between two or more processing chambers in the manufacture of semiconductor devices is provided where the system includes a mobile cart, a vacuum sealable container to hold the substrates, a vacuum source having a portable power source, located on the cart and capable of generating a vacuum in the container, and a docking valve to mate with a corresponding valve on each of the processing chambers, where the docking valve and the corresponding valve are securable to one another to form a substantially vacuum-tight seal and openable, while mated, to permit unloading and loading of substrates between the container and the processing chamber. A method of using the system is also provided.Type: GrantFiled: October 1, 2001Date of Patent: October 28, 2003Assignee: Air Products and Chemicals, Inc.Inventors: John Giles Langan, Wayne Thomas McDermott, Thomas Hsiao-Ling Hsiung
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Publication number: 20030164177Abstract: A method of using PFCs recovered from the effluent of a CVD chamber cleaning process as an influent for the cleaning process is provided which includes the steps of selecting a first PFC gas mixture having a first ratio of C2F6 to CF4, providing the first PFC gas mixture as the influent gas to the CVD chamber to create a CVD chamber effluent gas of a second PFC gas mixture having a second ratio of C2F6 to CF4, adding virgin C2F6 or CF4 to the CVD chamber effluent gas in sufficient quantity to create a third PFC gas mixture having the first ratio of C2F6 to CF4, and using the third PFC gas mixture as the influent gas to the CVD chamber.Type: ApplicationFiled: February 27, 2002Publication date: September 4, 2003Inventors: John Giles Langan, Andrew David Johnson
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Publication number: 20030098419Abstract: An on-line halogen analyzer system and method of use for semiconductor processing effluent monitoring. The system includes sampling the effluent stream into an absorption cell, and passing UV-Visible light through the effluent sample in the cell. After passing through the sample the light is collected by a photo detector for real-time wavelength-selective absorption analysis. The system provides simultaneous determination of the concentrations of multiple halogen gases (e.g. F2, Cl2, Br2, and I2) in semiconductor processing effluent streams. The invention can be used for chemical vapor deposition (CVD) chamber cleaning endpoint determination and to improve fluorine utilization efficiency in remote plasma downstream CVD chamber cleaning processes.Type: ApplicationFiled: October 29, 2001Publication date: May 29, 2003Inventors: Bing Ji, Robert Gordon Ridgeway, Eugene Joseph Karwacki,, Howard Paule Withers,, Steven Arthur Rogers, Peter James Maroulis, John Giles Langan
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Publication number: 20030063965Abstract: A mobile, self-evacuating, micro-environment system for transit and storage of substrates between two or more processing chambers in the manufacture of semiconductor devices is provided where the system includes a mobile cart, a vacuum sealable container to hold the substrates, a vacuum source having a portable power source, located on the cart and capable of generating a vacuum in the container, and a docking valve to mate with a corresponding valve on each of the processing chambers, where the docking valve and the corresponding valve are securable to one another to form a substantially vacuum-tight seal and openable, while mated, to permit unloading and loading of substrates between the container and the processing chamber. A method of using the system is also provided.Type: ApplicationFiled: October 1, 2001Publication date: April 3, 2003Inventors: John Giles Langan, Wayne Thomas McDermott, Thomas Hsiao-Ling Hsiung
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Patent number: 6023933Abstract: A method and apparatus for pressurizing a high purity gas in liquefied form to an ultra high pressure gas in vapor form using a constant volume, heated vaporization vessel.Type: GrantFiled: November 4, 1997Date of Patent: February 15, 2000Assignee: Air Products and Chemicals, Inc.Inventors: John Giles Langan, Wayne Thomas McDermott, Richard Carl Ockovic
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Patent number: 5910294Abstract: A process for abating NF.sub.3 by contacting it with a metal oxalate or carbonate.Type: GrantFiled: November 17, 1997Date of Patent: June 8, 1999Assignee: Air Products and Chemicals, Inc.Inventors: John Giles Langan, Howard Paul Withers, Jr.