Patents by Inventor Michael A Costantini
Michael A Costantini 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: 20070184919Abstract: The present invention provides a golf tee wherein a Step is provided in specific heights based on the height of the Step built into the varying golf tees; when placed into the ground, the desired golf ball height is attained by the tee selected.Type: ApplicationFiled: February 3, 2006Publication date: August 9, 2007Inventor: Michael Costantini
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Patent number: 6612317Abstract: A continuous flow, steady state fluid delivery and recovery system for a process chamber and processes requiring supercritical fluid and desired additives including co-solvents, for conducting repetitive batch processing operations in an automated environment, for such processes as supercritical carbon dioxide cleaning and processing of semiconductor wafers. The system provides for steady-state operation of fluid flow and byproducts recovery while the process chamber is brought rapidly and repeatedly on and off line as in batch operations and for various process steps.Type: GrantFiled: April 18, 2001Date of Patent: September 2, 2003Assignee: S.C. Fluids, INCInventors: Michael A. Costantini, Mohan Chandra, Heiko D. Moritz, Ijaz H. Jafri, David J. Mount, Rick M. Heathwaite
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Patent number: 6602349Abstract: A dry process for the cleaning of precision surfaces such as of semiconductor wafers, by using process materials such as carbon dioxide and useful additives such as cosolvents and surfactants, where the process materials are applied exclusively in gaseous and supercritical states. Soak and agitation steps are applied to the wafer, including a rapid decompression of the process chamber after a soak period at higher supercritical pressure, to mechanically weaken break up the polymers and other materials sought to be removed, combined with a supercritical fluid flush to carry away the loose debris.Type: GrantFiled: May 18, 2001Date of Patent: August 5, 2003Assignee: S.C. Fluids, Inc.Inventors: Mohan Chandra, David J. Mount, Michael A. Costantini, Heiko D. Moritz, Ijaz Jafri, Jim Boyd, Rick M. Heathwaite
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Patent number: 6491971Abstract: A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.Type: GrantFiled: April 6, 2001Date of Patent: December 10, 2002Assignee: G.T. Equipment Technologies, IncInventors: Michael A Costantini, Mohan Chandra, Keith Matthei, Alleppey V. Hariharan
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Patent number: 6479108Abstract: A thermodynamically stable, protective coating layer is applied by thermal spray technique to the inner and outer surfaces of a quartz crucible used for mono or polycrystalline silicon crystallization processing, inhibiting fusion between the silicon melt and the vitreous silica of the crucible, contamination of the silicon melt by contaminants released from the crucible by devitrification, and any chemical reaction occurring between the crucible and any supporting graphite structure. A powdered form of a suitable protective coating material compatible with high temperature plasma spray techniques, such as magnesium zirconate, barium zirconate, or stabilized zirconium oxide, is fed into a high temperature and high speed plasma jet directed at the crucible. The powder particles are softened or melted in the jet and deposited on the surfaces of the quartz crucible, and allowed to cool and harden into a protective coating.Type: GrantFiled: August 31, 2001Date of Patent: November 12, 2002Assignee: G.T. Equipment Technologies, Inc.Inventors: Alleppey V. Hariharan, Mohan Chandra, Michael Costantini, Yuepeng Wan
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Publication number: 20020146510Abstract: A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.Type: ApplicationFiled: April 6, 2001Publication date: October 10, 2002Inventors: Michael A. Costantini, Mohan Chandra, Keith Matthei, Alleppey V. Hariharan
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Publication number: 20020086119Abstract: A thermodynamically stable, protective coating layer is applied by thermal spray technique to the inner and outer surfaces of a quartz crucible used for mono or polycrystalline silicon crystallization processing, inhibiting fusion between the silicon melt and the vitreous silica of the crucible, contamination of the silicon melt by contaminants released from the crucible by devitrification, and any chemical reaction occurring between the crucible and any supporting graphite structure. A powdered form of a suitable protective coating material compatible with high temperature plasma spray techniques, such as magnesium zirconate, barium zirconate, or stabilized zirconium oxide, is fed into a high temperature and high speed plasma jet directed at the crucible. The powder particles are softened or melted in the jet and deposited on the surfaces of the quartz crucible, and allowed to cool and harden into a protective coating.Type: ApplicationFiled: August 31, 2001Publication date: July 4, 2002Inventors: Allepey V. Hariharan, Mohan Chandra, Michael A. Costantini, Yuepeng Wan
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Publication number: 20020076501Abstract: A method for preparing a release coating and applying it to crucibles used to contain molten material while it solidifies, such as in the directional solidification of polycrystalline silicon into ingots, by mixing a release coating power with a dry organic binder into a powder and binder dry mixture, mixing a defoamer with a liquid into a liquid and defoamer mixture, mixing the dry mixture with the liquid and defoamer mixture into a wet release coating, sieving to remove lumps and particles, checking the viscosity, wet-spraying onto a crucible at about room temperature, evaporating the liquid from the wet release coating so as to leave a dry release coating on the crucible, and separating the binder from the dry release coating by thermal decomposition.Type: ApplicationFiled: November 15, 2001Publication date: June 20, 2002Inventors: Michael Costantini, Mohan Chandra, Keith Matthei, Alleppey V. Hariharan
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Publication number: 20020014257Abstract: A dry process for the cleaning of precision surfaces such as of semiconductor wafers, by using process materials such as carbon dioxide and useful additives such as cosolvents and surfactants, where the process materials are applied exclusively in gaseous and supercritical states. Soak and agitation steps are applied to the wafer, including a rapid decompression of the process chamber after a soak period at higher supercritical pressure, to mechanically weaken break up the polymers and other materials sought to be removed, combined with a supercritical fluid flush to carry away the loose debris.Type: ApplicationFiled: May 18, 2001Publication date: February 7, 2002Inventors: Mohan Chandra, David J. Mount, Michael A. Costantini, Heiko D. Moritz, Ijaz H. Jafri, Jim Boyd, Rick M. Heathwaite
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Publication number: 20010050096Abstract: A continuous flow, steady state fluid delivery and recovery system for a process chamber and processes requiring supercritical fluid and desired additives including co-solvents, for conducting repetitive batch processing operations in an automated environment, for such processes as supercritical carbon dioxide cleaning and processing of semiconductor wafers. The system provides for steady-state operation of fluid flow and byproducts recovery while the process chamber is brought rapidly and repeatedly on and off line as in batch operations and for various process steps.Type: ApplicationFiled: April 18, 2001Publication date: December 13, 2001Inventors: Michael A. Costantini, Mohan Chandra, Heiko D. Moritz, Ijaz H. Jafri, David J. Mount, Rick M. Heathwaite
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Patent number: 6113473Abstract: A slurry recycle process for use in free-abrasive machining operations such as for wire saws used in wafer slicing of ingots, where the used slurry is separated into kerf-rich and abrasive-rich components, and the abrasive-rich component is reconstituted into a makeup slurry. During the process, the average particle size of the makeup slurry is controlled by monitoring the condition of the kerf and abrasive components and making necessary adjustments to the separating force and dwell time of the separator apparatus. Related pre-separator and post separator treatments, and feedback of one or the other separator slurry output components for mixing with incoming used slurry and recirculation through the separator, provide further effectiveness and additional control points in the process.Type: GrantFiled: April 24, 1998Date of Patent: September 5, 2000Assignee: G.T. Equipment Technologies Inc.Inventors: Michael A. Costantini, Jonathan A. Talbott, Mohan Chandra, Vishwanath Prasad, Allison Caster, Kedar P. Gupta, Philippe Leyvraz