Patents Assigned to Lam Research AG
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Patent number: 12538752Abstract: Apparatus for processing a wafer-shaped article, the apparatus comprising a support configured to support the wafer-shaped article during a processing operation; wherein: the support comprises a support body and a plurality of gripping pin assemblies adapted and positioned relative to the support body for gripping the wafer-shaped article, wherein each of the gripping pin assemblies is rotatable relative to the support body between a gripping configuration in which the gripping pin assemblies grip the wafer-shaped article, and a non-gripping configuration in which the gripping pin assemblies do not grip the wafer-shaped article; each of the gripping pin assemblies protrudes from a respective hole in the support body; and a sealing member is positioned between at least one of the gripping pin assemblies and the respective hole, the sealing member being configured to restrict infiltration of a processing liquid used in the processing operation into the hole.Type: GrantFiled: April 7, 2021Date of Patent: January 27, 2026Assignee: LAM RESEARCH AGInventors: Michael Brugger, Burkhart Schier, Michael Duller
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Patent number: 12512343Abstract: An apparatus for dispensing a liquid comprising: a supply flow path; a pressurised liquid source arranged to supply pressurised liquid to the supply flow path; a junction downstream of the pressurised liquid source, wherein at the junction the supply flow path is branched into a dispense flow path and a return or drain flow path; and a valve or pump in the return or drain flow path downstream of the junction.Type: GrantFiled: February 1, 2022Date of Patent: December 30, 2025Assignee: LAM RESEARCH AGInventor: Karl David Henriks
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Patent number: 12456644Abstract: An apparatus for processing a wafer comprises: a rotatable chuck adapted to receive a wafer; a heating assembly comprising an array of heating elements arranged to heat a wafer received by the rotatable chuck; an image sensor arranged to detect electromagnetic radiation from a surface of the wafer; and a controller configured to control supply of power to the array of heating elements based on a measurement output of the image sensor.Type: GrantFiled: January 29, 2020Date of Patent: October 28, 2025Assignee: LAM RESEARCH AGInventors: Martin Kleindienst, Stefan Koch
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Patent number: 12217980Abstract: An apparatus for processing a wafer comprises: a rotatable chuck adapted to receive a wafer; a heating assembly comprising an array of light-emitting heating elements arranged to illuminate a wafer received by the rotatable chuck to heat the wafer; and one or more light sensors arranged to detect light emitted by the array of light-emitting heating elements.Type: GrantFiled: January 3, 2020Date of Patent: February 4, 2025Assignee: LAM RESEARCH AGInventors: Daniel Brien, Pradeep Thirugnanam, Matija Ponikvar, Alois Goller
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Patent number: 12198945Abstract: A vapor delivery head for wet treatment of a substrate includes a body including an upper surface, a lower surface, an upper plenum and a lower plenum. A first bore is arranged on the upper surface of the body and fluidly connected to the upper plenum to supply heated fluid. A second bore is arranged on the upper surface of the body and connected to the upper plenum to remove heated fluid. A third bore is arranged on the upper surface of the body and connected to the lower plenum to receive a gas mixture. A plurality of through holes through the lower surface of the body are in fluid communication with the lower plenum.Type: GrantFiled: August 21, 2019Date of Patent: January 14, 2025Assignee: LAM RESEARCH AGInventors: Bhaskar Bandarapu, David Mui, Karl-Heinz Hohenwarter, Butch Berney, Nathan Lavdovsky, Christian Putzi, Hongbo Si, Robert Johnson, Michael Klemm, Bernhard Loidl
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Patent number: 11975992Abstract: The present application discloses a method of producing an aqueous rinsing liquid in an electrochemical cell having an anode chamber with an anode and a cathode chamber with a cathode, the anode chamber and cathode chamber being separated by a cation-selective membrane, wherein the method includes the steps of (a) feeding an aqueous anode chamber feedstock into the anode chamber (b) feeding an aqueous cathode chamber feedstock comprising at least one electrolyte through the cathode chamber; and (c) applying an electrical voltage to the anode and cathode to form rinsing liquid in the cathode chamber; and wherein steps a, b and c are performed, at least in part, simultaneously. Also disclosed is apparatus suitable for carrying out such methods.Type: GrantFiled: March 26, 2019Date of Patent: May 7, 2024Assignee: LAM RESEARCH AGInventors: Angela Hecke, Hongzhi Wang, Guenther Zerza
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Patent number: 11854792Abstract: A method for treating high aspect ratio (HAR) structures arranged on a surface of a substrate includes a) spin rinsing the surface of the substrate using a first rinsing liquid; b) spinning off the first rinsing liquid from the surface of the substrate; and c) directing a gas mixture containing hydrogen fluoride onto the surface of the substrate after the first rinsing liquid is dispensed.Type: GrantFiled: October 11, 2018Date of Patent: December 26, 2023Assignee: LAM RESEARCH AGInventors: Dries Dictus, Ta-Yu Lo
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Patent number: 11823892Abstract: A gas mixture for treating a substrate in a substrate processing system includes hydrogen fluoride gas, a vapor of an alcohol, an additive consisting of a base, and a carrier gas. The gas mixture can be used to treat high aspect ratio (HAR) structures arranged on a surface of a substrate. A surface of the substrate may be spin rinsed using a first rinsing liquid. The first rinsing liquid is spun off from the surface of the substrate. The gas mixture is directed onto the surface of the substrate after the first rinsing liquid is dispensed.Type: GrantFiled: September 26, 2019Date of Patent: November 21, 2023Assignee: Lam Research AGInventors: Ji Zhu, Gerome Michel Dominique Melaet, Nathan Lavdovsky, Rafal Dylewicz, David Mui
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Patent number: 11810796Abstract: The present invention relates to a method for treating the surface of a wafer with multiple liquids, comprising rotating the surface of the wafer and discharging different liquid streams onto the rotating surface in a sequence from separate outlets, wherein the discharge of liquid streams which are contiguous in the sequence overlaps during a transition phase, and wherein during the transition phase the liquid streams merge after exiting said outlets to form a merged liquid stream before impacting the rotating surface. The invention also provides a liquid dispensing device incorporating a housing holding two or more liquid delivery tubes, wherein the tubes' outlets are inwardly angled towards one another, such that in use liquid streams delivered from the outlets of the two or more liquid delivery tubes merge to form a merged liquid stream.Type: GrantFiled: September 16, 2019Date of Patent: November 7, 2023Assignee: LAM RESEARCH AGInventors: Christoph Semmelrock, Ulrich Tschinderle, Reinhard Sellmer, Walter Esterl
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Patent number: 11195730Abstract: A device for processing wafer-shaped articles comprises a closed process chamber that provides a gas-tight enclosure. A rotary chuck is located within the closed process chamber. A heater is positioned relative to the chuck so as to heat a wafer shaped article held on the chuck from one side only and without contacting the wafer shaped article. The heater emits radiation having a maximum intensity in a wavelength range from 390 nm to 550 nm. At least one first liquid dispenser is positioned relative to the chuck so as to dispense a process liquid onto a side of a wafer shaped article that is opposite the side of the wafer-shaped article facing the heater.Type: GrantFiled: November 22, 2019Date of Patent: December 7, 2021Assignee: Lam Research AGInventors: Rainer Obweger, Andreas Gleissner, Thomas Wirnsberger, Franz Kumnig, Alessandro Baldaro, Christian Thomas Fischer, Mu Hung Chou, Rafal Ryszard Dylewicz, Nathan Lavdovsky, Ivan L. Berry, III
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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: 10815573Abstract: A liquid passivation mixture for passivating an outer layer of a substrate comprises a first material selected from group consisting of sulfur or selenium and a base selected from a group consisting of quaternary ammonium compound, sodium hydroxide (NaOH), potassium hydroxide (KOH), and amine.Type: GrantFiled: May 30, 2017Date of Patent: October 27, 2020Assignee: LAM RESEARCH AGInventor: Dries Dictus
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Patent number: 10720343Abstract: 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: May 31, 2016Date of Patent: July 21, 2020Assignee: Lam Research AGInventors: David Mui, Butch Berney, Alois Goller, Mike Ravkin
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Patent number: 10679871Abstract: 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: May 31, 2016Date of Patent: June 9, 2020Assignee: Lam Research AGInventors: David Mui, Butch Berney, Alois Goller, Mike Ravkin
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Patent number: 10658204Abstract: A substrate processing system to treat a substrate includes a spin chuck configured to hold and rotate a substrate. A heating assembly is configured to heat an opposite surface of the substrate and includes a main heater assembly and a nozzle stack cap. The main heater assembly includes a first plurality of light emitting diodes (LEDs) arranged on a first printed circuit board (PCB) in a first plane that is spaced from and parallel to a second plane including the substrate. The nozzle stack cap assembly includes at least one nozzle to dispense liquid onto a center of a first surface of the substrate. A radiant heat source is arranged closer to the substrate than the first plane and is configured to heat the center of the first surface of the substrate.Type: GrantFiled: August 8, 2017Date of Patent: May 19, 2020Assignee: LAM RESEARCH AGInventors: Bridget Hill, Michael Puggl, Gerhard Mueller, Henry Roger Osner, Karl-Heinz Hohenwarter, Ulrich Tschinderle, Daniel Brien
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Patent number: 10490426Abstract: A device for processing wafer-shaped articles comprises a closed process chamber that provides a gas-tight enclosure. A rotary chuck is located within the closed process chamber. A heater is positioned relative to the chuck so as to heat a wafer shaped article held on the chuck from one side only and without contacting the wafer shaped article. The heater emits radiation having a maximum intensity in a wavelength range from 390 nm to 550 nm. At least one first liquid dispenser is positioned relative to the chuck so as to dispense a process liquid onto a side of a wafer shaped article that is opposite the side of the wafer-shaped article facing the heater.Type: GrantFiled: August 26, 2014Date of Patent: November 26, 2019Assignee: LAM RESEARCH AGInventors: Rainer Obweger, Andreas Gleissner, Thomas Wirnsberger, Franz Kumnig, Alessandro Baldaro, Christian Thomas Fischer, Mu Hung Chou, Rafal Ryszard Dylewicz, Nathan Lavdovsky, Ivan L. Berry, III
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Patent number: 10483010Abstract: A system for reducing surface and embedded charge in a substrate includes a substrate support configured to support a substrate. A vacuum ultraviolet (VUV) assembly is arranged adjacent to the substrate and includes a housing and a VUV lamp that is connected to the housing and that generates and directs ultraviolet (UV) light at the substrate. A movement device is configured to move at least one of the VUV assembly and the substrate support during exposure of the substrate to the UV light to reduce surface and embedded charge in the substrate.Type: GrantFiled: September 7, 2016Date of Patent: November 19, 2019Assignee: LAM RESEARCH AGInventors: Rafal Dylewicz, Reinhold Schwarzenbacher, Xia Man, Kenichi Sano, David Lou, Milan Pliska
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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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Patent number: 10410888Abstract: A device for removing liquid from a surface of a disc-like article comprises a spin chuck for holding and rotating a single disc-like article about an axis of rotation and a liquid dispenser for dispensing liquid onto the disc-like article. A first gas dispenser comprises at least one nozzle with at least one orifice for blowing gas onto the disc-like article, and a second gas dispenser comprises at least one nozzle with at least one orifice for blowing gas onto the disc-like article. A rotary arm moves the liquid dispenser and the second gas dispenser across the disc-like article so that the second gas dispenser and the liquid dispenser move to a point in a peripheral region of the spin chuck. The at least one nozzle of the second gas dispenser is elongated along a first horizontal line that defines an angle ? of 5-20° relative to a second horizontal line connecting the center of the second gas dispenser and the rotation axis of the rotary arm.Type: GrantFiled: February 27, 2014Date of Patent: September 10, 2019Assignee: LAM RESEARCH AGInventors: Christoph Semmelrock, Dietmar Hammer
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Patent number: 10312117Abstract: An apparatus for processing wafer-shaped articles includes a rotary chuck adapted to hold a wafer-shaped article of a predetermined diameter thereon. A radiant heating plate faces a wafer-shaped article when positioned on the rotary chuck. The radiant heating plate includes radiant heating elements, but a central region of the radiant heating plate is free of radiant heating elements. The radiant heating plate further includes at least one refraction element that refracts radiation emitted by the radiant heating elements and passed through the at least one refraction element, toward the central region of the radiant heating plate.Type: GrantFiled: August 10, 2016Date of Patent: June 4, 2019Assignee: LAM RESEARCH AGInventors: Hongbo Si, Bridget Hill, Butch Berney, Daniel Brien