Patents by Inventor Alan D. Zdunek
Alan D. Zdunek 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: 20080142375Abstract: Compositions and methods suitable for the electrochemical mechanical planarization of a conductive material layer on a semiconductor workpiece. Compositions contain a phosphonic acid based electrolyte, a corrosion inhibitor, a chelating agent, a pH adjusting agent, and a solvent as the remainder.Type: ApplicationFiled: September 28, 2007Publication date: June 19, 2008Inventors: Francois Doniat, Matthew L. Fisher, Alan D. Zdunek, Alexandro A. Barajas, Ian Suni, Xiangfeng Chu, Abhinav Tripathi, Yuzhuo Li
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Patent number: 7022212Abstract: A microstructured electrode coupled with an analytical method designed to simulate the actual conditions on the wafer and to measure critical parameters such as mass transfer of the active plating components, deposition rates of the copper in the plating bath solutions, and/or additive concentration is disclosed. Thus, an offline method for process control is provided. Additionally, the electrode and method can be incorporated into a copper interconnect bath tool or copper interconnect bath distribution system for online control of the process chemistry. The microstructured electrode design consists of a patterned electrode surface that simulates the dimensions of the interconnects and vias. The analytical method can be any type of method that allows diffusion or kinetic information to be obtained, such as electrochemical impedance, electrochemical noise, and other voltammetric or galvanostatic methods.Type: GrantFiled: October 21, 2002Date of Patent: April 4, 2006Assignee: American Air Liquide, Inc.Inventor: Alan D. Zdunek
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Publication number: 20030111346Abstract: A microstructured electrode coupled with an analytical method designed to simulate the actual conditions on the wafer and to measure critical parameters such as mass transfer of the active plating components, deposition rates of the copper in the plating bath solutions, and/or additive concentration is disclosed. Thus, an offline method for process control is provided. Additionally, the electrode and method can be incorporated into a copper interconnect bath tool or copper interconnect bath distribution system for online control of the process chemistry. The microstructured electrode design consists of a patterned electrode surface that simulates the dimensions of the interconnects and vias. The analytical method can be any type of method that allows diffusion or kinetic information to be obtained, such as electrochemical impedance, electrochemical noise, and other voltammetric or galvanostatic methods.Type: ApplicationFiled: October 21, 2002Publication date: June 19, 2003Inventor: Alan D. Zdunek
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Publication number: 20020152797Abstract: Provided are novel gas delivery apparatuses. In accordance with one aspect of the invention, the apparatus features: a gas line network for delivering a gas from a gas source to a point of use; means for performing one or more vacuum/purge cycle in the gas line network, the vacuum/purge cycle including a vacuum phase and a purge phase; and a measurement system for detecting a gas phase molecular species in the gas line network during the vacuum phase and/or the purge phase of the vacuum/purge cycle. Also provided are methods for monitoring a gas phase molecular species in a gas delivery apparatus. The invention allows for replacement of components in a gas delivery system in a manner which is safe, and which avoids detrimental impact on the process being run and on the equipment.Type: ApplicationFiled: January 4, 2002Publication date: October 24, 2002Inventors: James J.F. McAndrew, Eric L. Duchateau, Jean-Marc Girard, Alan D. Zdunek
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Patent number: 6365227Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.Type: GrantFiled: March 22, 2001Date of Patent: April 2, 2002Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et, l 'Exploitation des Procedes Claude of France, American Air Liquide Inc.Inventors: Alan D. Zdunek, Eugene A. Kernerman, William Korzeniowski
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Patent number: 6290088Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.Type: GrantFiled: May 28, 1999Date of Patent: September 18, 2001Assignees: American Air Liquide Inc., Air Liquide Americas America Corporation, L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Alan D. Zdunek, Eugene A. Kernerman, William Korzeniowski
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Publication number: 20010017300Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.Type: ApplicationFiled: March 22, 2001Publication date: August 30, 2001Applicant: Air Liquide America Corporation, American Air Liquide Inc.Inventors: Alan D. Zdunek, Eugene A. Kernerman, William Korzeniowski
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Patent number: 6263904Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.Type: GrantFiled: October 4, 2000Date of Patent: July 24, 2001Assignees: Air Liquide America Corporation, American Air Liquide Inc., L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Alan D. Zdunek, Eugene A. Kernerman, William Korzeniowski
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Publication number: 20010001441Abstract: A method and apparatus for measuring the quality, e.g., thickness, porosity, or corrosion rate, of a coating inside a hollow body having an opening. The method comprises attaching a probe from a coating measuring device to one end of an extender arm having a flexible portion therein, placing the probe inside the hollow body through the opening, and making the desired measurements of the coating.Type: ApplicationFiled: January 16, 2001Publication date: May 24, 2001Inventors: Alan D. Zdunek, Paul Vanecek, Eugene A. Kernerman
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Patent number: 6207030Abstract: A method and apparatus for measuring the quality, e.g., thickness, porosity, or corrosion rate, of a coating inside a hollow body having an opening. The method comprises attaching a probe from a coating measuring device to one end of an extender arm having a flexible portion therein, placing the probe inside the hollow body through the opening, and making the desired measurements of the coating. The apparatus includes a flexible extender arm for use with a coating measuring device.Type: GrantFiled: June 19, 2000Date of Patent: March 27, 2001Assignee: American Air Liquide Inc.Inventors: Alan D. Zdunek, Paul Vanecek, Eugene A. Kernerman
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Patent number: 6202885Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.Type: GrantFiled: May 28, 1999Date of Patent: March 20, 2001Assignees: American Air Liquide Inc., Air Liquide Americas America Corporation, L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Alan D. Zdunek, Eugene A. Kernerman, William Korzeniowski
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Patent number: 6106693Abstract: A method and apparatus for measuring the quality, e.g., thickness, porosity, or corrosion rate, of a coating inside a hollow body having an opening. The method comprises attaching a probe from a coating measuring device to one end of an extender arm having a flexible portion therein, placing the probe inside the hollow body through the opening, and making the desired measurements of the coating.The apparatus includes a flexible extender arm for use with a coating measuring device.Type: GrantFiled: July 1, 1999Date of Patent: August 22, 2000Assignee: American Air Liquide Inc.Inventors: Alan D. Zdunek, Paul Vanecek, Eugene A. Kernerman
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Patent number: 5954940Abstract: A method and apparatus for measuring the quality, e.g., thickness, porosity, or corrosion rate, of a coating inside a hollow body having an opening. The method comprises attaching a probe from a coating measuring device to one end of an extender arm having a flexible portion therein, placing the probe inside the hollow body through the opening, and making the desired measurements of the coating.The apparatus includes a flexible extender arm for use with a coating measuring device.Type: GrantFiled: June 30, 1997Date of Patent: September 21, 1999Assignee: American Air Liquide Inc.Inventors: Alan D. Zdunek, Paul Vanecek, Eugene A. Kernerman