Patents by Inventor Michael Ravkin
Michael Ravkin 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: 20220356585Abstract: A method for cleaning a substrate includes arranging the substrate in a processing chamber; controlling a pressure of the processing chamber to a predetermined pressure range; controlling a temperature of the processing chamber to a predetermined temperature range; and supplying a vapor mixture including a metal chelating vapor for a first period to remove metal contamination from surfaces of the substrate.Type: ApplicationFiled: June 23, 2020Publication date: November 10, 2022Inventors: David MUI, Gerome Michel Dominique MELAET, Nathan MUSSELWHITE, Michael RAVKIN, Mark KAWAGUCHI, Ilia KALINOVSKI
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Patent number: 10861719Abstract: An apparatus for processing wafer-shaped articles comprises a rotary chuck and a heating assembly that faces a wafer-shaped article when positioned on the rotary chuck. A liquid dispenser positioned so as to dispense liquid onto a surface of a wafer-shaped article that faces away from the rotary chuck when positioned on the rotary chuck. The heating assembly comprises an array of radiant heating elements distributed among at least five individually controllable groups. The liquid dispenser comprises one or more dispensing orifices configured to move a discharge point from a more central region of the rotary chuck to a more peripheral region of the rotary chuck. A controller controls power supplied to each of the at least five individually controllable groups of radiant heating elements based on a position of the discharge point of the liquid dispenser.Type: GrantFiled: March 26, 2020Date of Patent: December 8, 2020Assignee: Lam Research AGInventors: David Mui, Butch Berney, Alois Goller, Michael Ravkin
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Patent number: 10446416Abstract: A method for drying wafer-shaped articles comprises rotating a wafer-shaped article of a predetermined diameter on a rotary chuck, and dispensing a drying liquid onto one side of the wafer-shaped article. The drying liquid comprises greater than 50 mass % of an organic solvent. During at least part of the dispensing step, the wafer-shaped article is heated with a heating assembly. During at least part of the dispensing step a fluorine-containing compound is present in the drying liquid or in a gas that surrounds the drying liquid as the drying liquid contacts the wafer-shaped article.Type: GrantFiled: August 9, 2016Date of Patent: October 15, 2019Assignee: LAM RESEARCH AGInventors: David Mui, Nathan Musselwhite, Michael Ravkin
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Publication number: 20180047593Abstract: A method for drying wafer-shaped articles comprises rotating a wafer-shaped article of a predetermined diameter on a rotary chuck, and dispensing a drying liquid onto one side of the wafer-shaped article. The drying liquid comprises greater than 50 mass % of an organic solvent. During at least part of the dispensing step, the wafer-shaped article is heated with a heating assembly. During at least part of the dispensing step a fluorine-containing compound is present in the drying liquid or in a gas that surrounds the drying liquid as the drying liquid contacts the wafer-shaped article.Type: ApplicationFiled: August 9, 2016Publication date: February 15, 2018Inventors: David MUI, Nathan MUSSELWHITE, Michael RAVKIN
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Publication number: 20150040947Abstract: An apparatus for cleaning a substrate is disclosed. The apparatus having a first head unit and a second head unit. The first head unit is positioned proximate to the surface of the substrate and has a first row of channels defined within configured to supply a foam to the surface of the substrate. The second head unit is positioned substantially adjacent to the first head unit and proximate to the surface of the substrate. A second and a third row of channels are defined within the second head unit. The second row of channels is configured to supply a fluid to the surface of the substrate. The third row of channels is configured to apply a vacuum to the surface of the substrate.Type: ApplicationFiled: August 7, 2013Publication date: February 12, 2015Applicant: Lam Research CorporationInventors: Erik M. Freer, John M. deLarios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker, Clint Thomas, John Parks
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Publication number: 20150040941Abstract: A method for cleaning a substrate is provided. The method initiates with disposing a fluid layer having solid components therein to a surface of the substrate. A shear force directed substantially parallel to the surface of the substrate and toward an outer edge of the substrate is then created. The shear force may result from a normal or tangential component of a force applied to a solid body in contact with the fluid layer in one embodiment. The surface of the substrate is rinsed to remove the fluid layer. A cleaning system and apparatus are also provided.Type: ApplicationFiled: August 7, 2013Publication date: February 12, 2015Applicant: Lam Research CorporationInventors: Erik M. Freer, John M. deLarios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker
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Patent number: 8716210Abstract: Material for cleaning using a tri-state body are disclosed. A substrate having a particle deposited thereon is provided. A tri-state body that has a solid portion, liquid portion, and a gas portion is generated. A force is applied over the tri-state body to promulgate an interaction between the solid portion and the particle. The tri-state body is removed along with the particle from the surface of the substrate. The interaction between the solid portion and the particle causes the particle to be removed along with the tri-state body.Type: GrantFiled: November 17, 2010Date of Patent: May 6, 2014Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. de Larios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker
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Patent number: 8691027Abstract: A pressure is maintained within a volume within which a semiconductor wafer resides at a pressure that is sufficient to maintain a liquid state of a precursor fluid to a non-Newtonian fluid. The precursor fluid is disposed proximate to a material to be removed from the semiconductor wafer while maintaining the precursor fluid in the liquid state. The pressure is reduced in the volume within which the semiconductor wafer resides such that the precursor fluid disposed on the wafer within the volume is transformed into the non-Newtonian fluid. An expansion of the precursor fluid and movement of the precursor fluid relative to the wafer during transformation into the non-Newtonian fluid causes the resulting non-Newtonian fluid to remove the material from the semiconductor wafer.Type: GrantFiled: November 6, 2012Date of Patent: April 8, 2014Assignee: Lam Research CorporationInventors: Mikhail Korolik, Michael Ravkin, John de Larios, Fritz C. Redeker, John M. Boyd
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Publication number: 20140059789Abstract: An apparatus for processing a substrate is provided. The apparatus includes a solid material having a support side and a contact side. The contact side has an outer surface, and the outer surface is configured to become softer relative to a remainder of the solid material when exposed to an activation solution. The apparatus includes a support structure configured to support the solid material from the support side of the solid material, such that the contact side of the solid material is oriented to face a surface of the substrate, when the substrate is present. Also provided is a gimbaled structure connected to the support structure. The gimbaled structure enabling the outer surface of the contact side to substantially align in a coplanar arrangement with the surface of the substrate, when the substrate is present. A force application structure is coupled to the gimbaled structure.Type: ApplicationFiled: October 16, 2013Publication date: March 6, 2014Applicant: Lam Research CorporationInventors: Erik M. Freer, John M. deLarios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker
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Patent number: 8608859Abstract: A method is provided for removing contamination from a substrate. The method includes applying a cleaning solution having a dispersed phase, a continuous phase and particles dispersed within the continuous phase to a surface of the substrate. The method includes forcing one of the particles dispersed within the continuous phase proximate to one of the surface contaminants. The forcing is sufficient to overcome any repulsive forces between the particles and the surface contaminants so that the one of the particles and the one of the surface contaminants are engaged. The method also includes removing the engaged particle and surface contaminant from the surface of the substrate. A process to manufacture the cleaning material is also provided.Type: GrantFiled: April 27, 2010Date of Patent: December 17, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. deLarios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker
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Patent number: 8591662Abstract: A method for cleaning a substrate is provided. The method initiates with applying an activation solution to a surface of the substrate. The activation solution and the surface of the substrate are contacted with a surface of a solid cleaning surface. The activation solution is absorbed into a portion of the solid cleaning element and then the substrate or the solid cleaning surface is moved relative to each other to clean the surface of the substrate. A method for cleaning the surface of the substrate with a solid cleaning element that experiences plastic deformation is also provided. Corresponding cleaning apparatuses are also provided.Type: GrantFiled: October 26, 2012Date of Patent: November 26, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John deLarios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker
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Publication number: 20130284217Abstract: A substrate cleaning systems are provided. One system includes a proximity head system for applying a meniscus to a surface of a substrate during a cleaning operation. Also provided is a container for holding the solution, the solution being mixed from at least a continuous medium, a polymer material, and a solid material, the polymer material in the solution imparting a finite yield stress to the material, such that the solution is maintained in a stable elastic gel form. A pump coupled to the container is also provided for moving the solution from the container to the proximity head system, where the pump applies at least a minimum shear stress on the solution. The pump provides agitation that exceeds the finite yield stress causing the solution to flow. A conduit is provided between the container and the proximity head system.Type: ApplicationFiled: June 28, 2013Publication date: October 31, 2013Inventors: Erik M. Freer, John M. de Larios, Michael Ravkin, Mikhail Korolik, Katrina Mikhaylichenko, Fred C. Redeker
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Patent number: 8555903Abstract: A cleaning material is disposed over a substrate. The cleaning material includes solid components dispersed within a liquid medium. A force is applied to the solid components within the liquid medium to bring the solid components within proximity to contaminants present on the substrate. The force applied to the solid components can be exerted by an immiscible component within the liquid medium. When the solid components are brought within sufficient proximity to the contaminants, an interaction is established between the solid components and the contaminants. Then, the solid components are moved away from the substrate such that the contaminants having interacted with the solid components are removed from the substrate.Type: GrantFiled: November 17, 2009Date of Patent: October 15, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. de Larios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker, Clint Thomas, John Parks
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Patent number: 8522801Abstract: A method for cleaning a substrate is provided. The method initiates with disposing a fluid layer having solid components therein to a surface of the substrate. A shear force directed substantially parallel to the surface of the substrate and toward an outer edge of the substrate is then created. The shear force may result from a normal or tangential component of a force applied to a solid body in contact with the fluid layer in one embodiment. The surface of the substrate is rinsed to remove the fluid layer. A cleaning system and apparatus are also provided.Type: GrantFiled: December 18, 2006Date of Patent: September 3, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. deLarios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker
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Patent number: 8522799Abstract: An apparatus for cleaning a substrate is disclosed. The apparatus having a first head unit and a second head unit. The first head unit is positioned proximate to the surface of the substrate and has a first row of channels defined within configured to supply a foam to the surface of the substrate. The second head unit is positioned substantially adjacent to the first head unit and proximate to the surface of the substrate. A second and a third row of channels are defined within the second head unit. The second row of channels is configured to supply a fluid to the surface of the substrate. The third row of channels is configured to apply a vacuum to the surface of the substrate.Type: GrantFiled: September 15, 2006Date of Patent: September 3, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. de Larios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fred C. Redeker, Clint Thomas, John Parks
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Publication number: 20130206182Abstract: Apparatus, methods, and computer programs for cleaning opposed surfaces of a semiconductor wafer are presented. One apparatus includes first, second, and third valves, and one or more second drains. The first valves are coupled to a supply of rinsing solution and to first throughways that are coupled to an immersion tank above a region in the immersion tank, the region being defined by an area occupied by the substrate when the substrate is disposed vertically on a support within the immersion tank. The second valves are coupled to first drains and to second throughways that are coupled to the immersion tank below the region, and the third valves are coupled to a supply of cleaning solution and to third throughways that are coupled to the immersion tank below the region. Further, the second drains are coupled to fourth throughways that are coupled to the immersion tank above the region.Type: ApplicationFiled: January 25, 2013Publication date: August 15, 2013Inventors: Erik M. Freer, John M. de Larios, Michael Ravkin, Mikhail Korolik, Fritz C. Redeker
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Patent number: 8480810Abstract: A method and system for cleaning a surface, having particulate matter thereon, of a substrate features impinging upon the surface a jet of a liquid having coupling elements entrained therein. A sufficient drag force is imparted upon the coupling elements to have the same move with respect to the liquid and cause the particulate matter to move with respect to the substrate.Type: GrantFiled: October 4, 2006Date of Patent: July 9, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. de Larios, Katrina Mikhaylichenko, Michael Ravkin, Mikhail Korolik, Fritz C. Redeker
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Substrate preparation using stabilized fluid solutions and methods for making stable fluid solutions
Patent number: 8475599Abstract: A method for making a solution for use in preparing a surface of a substrate is provided. The method includes providing a continuous medium that adds a polymer material to the continuous medium. A fatty acid is adding to the continuous medium having the polymer material, and the polymer material defines a physical network that exerts forces in the solution that overcome buoyancy forces experienced by the fatty acid, thus preventing the fatty acids from moving within the solution until a yield stress of the polymer material is exceeded by an applied agitation. The applied agitation is from transporting the solution from a container to a preparation station that applies the solution to the surface of the substrate.Type: GrantFiled: December 18, 2006Date of Patent: July 2, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. de Larios, Michael Ravkin, Mikhail Korolik, Katrina Mikhaylichenko, Fritz C. Redeker -
Publication number: 20130061887Abstract: A pressure is maintained within a volume within which a semiconductor wafer resides at a pressure that is sufficient to maintain a liquid state of a precursor fluid to a non-Newtonian fluid. The precursor fluid is disposed proximate to a material to be removed from the semiconductor wafer while maintaining the precursor fluid in the liquid state. The pressure is reduced in the volume within which the semiconductor wafer resides such that the precursor fluid disposed on the wafer within the volume is transformed into the non-Newtonian fluid. An expansion of the precursor fluid and movement of the precursor fluid relative to the wafer during transformation into the non-Newtonian fluid causes the resulting non-Newtonian fluid to remove the material from the semiconductor wafer.Type: ApplicationFiled: November 6, 2012Publication date: March 14, 2013Inventors: Mikhail Korolik, Michael Ravkin, John deLarios, Fritz C. Redeker, John M. Boyd
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Patent number: 8388762Abstract: A method and system for cleaning opposed surfaces of a semiconductor wafer having particulate matter thereon. The method includes generating relative movement between a fluid and the substrate. The relative movement is in a direction that is transverse to a normal to one of the opposed surfaces and creates two spaced-apart flows. Each of the flows is adjacent to one of the opposed surfaces that is different from the opposed surface that is adjacent to the remaining flow of the plurality of flows. The fluid has coupling elements entrained therein, and the relative movement is established to impart sufficient drag upon a subset of the coupling elements to create movement of the coupling elements of the subset within the fluid. In this manner, a quantity of the drag is imparted upon the particulate matter to cause the particulate matter to move with respect to the substrate.Type: GrantFiled: May 2, 2007Date of Patent: March 5, 2013Assignee: Lam Research CorporationInventors: Erik M. Freer, John M. deLarios, Michael Ravkin, Mikhail Korolik, Fritz C. Redeker