Patents Assigned to Lam Research Corporation
  • Patent number: 11538713
    Abstract: A controller for adjusting a height of an edge ring in a substrate processing system includes an edge ring wear calculation module configured to receive at least one input indicative of one or more erosion rates of the edge ring, calculate at least one erosion rate of the edge ring based on the at least one input, and calculate an amount of erosion of the edge ring based on the at least one erosion rate. An actuator control module is configured to adjust the height of the edge ring based on the amount of erosion as calculated by the edge ring wear calculation module.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: December 27, 2022
    Assignee: Lam Research Corporation
    Inventors: Tom A. Kamp, Carlos Leal-Verdugo
  • Patent number: 11534819
    Abstract: A furnace for electromagnetic casting a tubular-shaped silicon ingot is provided. The furnace includes a mold, outer and inner induction coils and a support member. The mold includes an outer crucible and an inner crucible. The outer crucible is annular-shaped. The inner crucible is disposed in the outer crucible and spaced away from the outer crucible to provide a gap between the inner crucible and the outer crucible. The mold is configured to receive granular silicon in the gap. The outer induction coil disposed around the outer crucible. The inner induction coil disposed in the inner crucible. The outer induction coil and the inner induction coil are configured to heat and melt the granular silicon in the mold to form a tubular-shaped silicon ingot. The support member is configured to hold and move a seed relative to the mold during formation of the tubular-shaped silicon ingot on the seed.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: December 27, 2022
    Assignee: Lam Research Corporation
    Inventors: Igor Peidous, Vijay Nithiananthan
  • Patent number: 11538666
    Abstract: A substrate processing system includes a multi-zone cooling apparatus to provide cooling for all or substantially all of a window in a substrate processing chamber. In one aspect, the apparatus includes one or more plenums to cover all or substantially all of a window in a substrate processing chamber, including under an energy source for transformer coupled plasma in the substrate processing chamber. One or more air amplifiers and accompanying conduits provide air to the one or more plenums to provide air flow to the window. The conduits are connected to plenum inlets at various distances from the center, to direct airflow throughout the window and thus address center hot, middle hot, and edge hot conditions, depending on the processes being carried out in the chamber. In one aspect, the one or more plenums include a central air inlet, to direct air toward the center portion of the window, to address center hot conditions.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: December 27, 2022
    Assignee: Lam Research Corporation
    Inventors: Yiting Zhang, Richard Marsh, Saravanapriyan Sriraman, Alexander Paterson
  • Patent number: 11535936
    Abstract: A showerhead utilized within a process chamber includes a first inlet for receiving a first gas from a first source at a center region of an inner plenum defined therein. A plurality of second inlets is defined along a peripheral region of the showerhead for receiving a second gas from a second source. A plurality of conduits couples the edge plenum to an outer edge of the inner plenum so as to supply the second gas to the inner plenum. The first gas creates an inner flow that flows radially outward from the center region to an outer edge of the inner plenum and the second gas supplied by the edge plenum creates a perimeter flow that flows inward from the outer edge of the inner plenum toward the center region. A stagnation point defining an adjustable radius is formed at an interface of the first gas and the second gas.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 27, 2022
    Assignee: Lam Research Corporation
    Inventors: Michael Philip Roberts, Eric Russell Madsen
  • Patent number: 11532460
    Abstract: In some examples, a gas mixer comprises a body and an orbital array of gas inlets for receiving one or more constituents of a mixed gas. A mixed gas outlet emits a mixed gas from the body and is disposed at a center of the orbital array of gas inlets. A central gas mixing point, separate from the mixed gas outlet, comprises an internal volume disposed within the body and is surrounded by the orbital array of gas inlet. The internal volume is in fluid communication with the orbital array of gas inlets via a corresponding array of gas pathways extending from the internal volume to each of the gas inlets. Each gas path length of the respective gas pathways is the same. Control circuitry is configured to control gas flow rate within each of the gas pathways individually.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: December 20, 2022
    Assignee: Lam Research Corporation
    Inventors: Mark Taskar, Iqbal A. Shareef
  • Patent number: 11520953
    Abstract: Etch in a thermal etch reaction is predicted using a machine learning model. Chemical characteristics of an etch process and associated energies in one or more reaction pathways of a given thermal etch reaction are identified using a quantum mechanical simulation. Labels indicative of etch characteristics may be associated with the chemical characteristics and associated energies of the given thermal etch reaction. The machine learning model can be trained using chemical characteristics and associated energies as independent variables and labels as dependent variables across many different etch reactions of different types. When chemical characteristics and associated energies for a new thermal etch reaction are provided as inputs in the machine learning model, the machine learning model can accurately predict etch characteristics of the new thermal etch reaction as outputs.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 6, 2022
    Assignee: Lam Research Corporation
    Inventors: Thorsten Lill, Andreas Fischer, Ivan L. Berry, III, Nerissa Sue Draeger, Richard A. Gottscho
  • Patent number: 11521860
    Abstract: A method for selectively etching layers of a first material with respect to layers of a second material in a stack is provided. The layers of the first material are partially etched with respect to the layers of the second material. A deposition layer is selectively deposited on the stack, wherein portions of the deposition layer covering the layers of the second material are thicker than portions covering the layers of the first material, the selective depositing comprising providing a first reactant, purging some of the first reactant, wherein some undeposited first reactant is not purged, and providing a second reactant, wherein the undeposited first reactant combines with the second reactant and selectively deposits on the layers of the second material with respect to the layers of the first material. The layers of the first material are selectively etched with respect to the layers of the second material.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: December 6, 2022
    Assignee: Lam Research Corporation
    Inventors: Jun Xue, Samantha SiamHwa Tan, Mohand Brouri, Yuanhui Li, Daniel Peter, Alexander Kabansky
  • Patent number: 11521869
    Abstract: An atmosphere-to-vacuum (ATV) transfer module for a substrate processing tool includes a first side configured to interface with at least one loading station, a transfer robot assembly arranged within the ATV transfer module, and a second side opposite the first side. The transfer robot assembly is configured to transfer substrates between the at least one loading station and at least one load lock arranged between the ATV transfer module and a vacuum transfer module (VTM). The second side is configured to interface with the at least one load lock. The transfer robot assembly is arranged adjacent to the second side, and the at least one load lock extends through the second side into an interior volume of the ATV transfer module.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 6, 2022
    Assignee: Lam Research Corporation
    Inventors: Richard H. Gould, Richard Blank
  • Publication number: 20220384186
    Abstract: Methods and apparatuses for depositing material into high aspect ratio features are described herein. Methods involve depositing an oxide material using a hydrogen-containing oxidizing chemistry. Methods may also involve thermally treating deposited oxide material in the presence of hydrogen to remove seams within the deposited oxide material.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 1, 2022
    Applicant: Lam Research Corporation
    Inventors: Douglas Walter Agnew, Joseph R. Abel, Eli Jeon
  • Patent number: 11515128
    Abstract: A confinement ring for a substrate processing system includes a lower wall, an outer wall, and an upper wall defining a plasma region within the confinement ring. A first plurality of slots is formed within the lower wall. The first plurality of slots provides fluid communication between the plasma region within the confinement ring and an environment external to the confinement ring. A recess is defined in a lower surface of the lower wall. A lower ring is arranged within the recess of the lower surface. The lower ring includes a second plurality of slots that provides fluid communication between the plasma region within the confinement ring and an environment external to the confinement ring via the first plurality of slots.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 29, 2022
    Assignee: LAM RESEARCH CORPORATION
    Inventor: Justin Charles Canniff
  • Patent number: 11512393
    Abstract: A pedestal assembly including a pedestal for supporting a substrate. A central shaft positions the pedestal at a height during operation. A ring is placed along a periphery of the pedestal. A ring adjuster subassembly includes an adjuster flange disposed around a middle section of the central shaft. The subassembly includes a sleeve connected to the adjuster flange and extending from the adjuster flange to an adjuster plate disposed under the pedestal. The subassembly includes ring adjuster pins connected to the adjuster plate and extending vertically from the adjuster plate. Each of the ring adjuster pins being positioned on the adjuster plate at locations adjacent to and outside of a pedestal diameter. The ring adjuster pins contacting an edge undersurface of the ring. The adjuster flange coupled to at least three adjuster actuators for defining an elevation and tilt of the ring relative to a top surface of the pedestal.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 29, 2022
    Assignee: Lam Research Corporation
    Inventors: Jacob Lee Hiester, Richard M. Blank, Curtis W. Bailey, Michael J. Janicki
  • Patent number: 11515124
    Abstract: A faceplate of a showerhead has a bottom side that faces a plasma generation region and a top side that faces a plenum into which a process gas is supplied during operation of a substrate processing system. The faceplate includes apertures formed through the bottom side and openings formed through the top side. Each of the apertures is formed to extend through a portion of an overall thickness of the faceplate to intersect with at least one of the openings to form a corresponding flow path for process gas through the faceplate. Each of the apertures has a cross-section that has a hollow cathode discharge suppression dimension in at least one direction. Each of the openings has a cross-section that has a smallest cross-sectional dimension that is greater than the hollow cathode discharge suppression dimension.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: November 29, 2022
    Assignee: Lam Research Corporation
    Inventors: Michael John Selep, Patrick G. Breiling, Karl Frederick Leeser, Timothy Scott Thomas, David William Kamp, Sean M. Donnelly
  • Patent number: 11508609
    Abstract: Some examples provide a vacuum wafer chuck assembly for supporting a wafer. An example chuck assembly comprises a chuck hub and a centering hub disposed within the chuck hub. Chuck arms are mounted to the chuck hub, with each chuck arm extending radially between a proximal end adjacent the chuck hub, and a distal end remote therefrom. A plurality of centering cams is provided, each cam mounted at or towards a distal end of a chuck arm and being movable radially inwardly or outwardly relative to the centering hub to engage or release an edge of a supported wafer in response to a rotational movement of the centering hub. At least one vacuum pad is provided for supporting the wafer during a wafer centering or wafer processing operation.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 22, 2022
    Assignee: Lam Research Corporation
    Inventors: Aaron Louis LaBrie, Claudiu Valentin Puha
  • Publication number: 20220362803
    Abstract: Methods and apparatuses for selectively etching silicon-and-oxygen-containing material relative to silicon-and-nitrogen-containing material by selectively forming a carbon-containing self-assembled monolayer on a silicon-and-nitrogen-containing material relative to a silicon-and-oxygen-containing material are provided herein. Methods are also applicable to selectively etching silicon-and-nitrogen-containing material relative to silicon-and-oxygen-containing material.
    Type: Application
    Filed: October 15, 2020
    Publication date: November 17, 2022
    Applicant: Lam Research Corporation
    Inventors: Eric A. Hudson, Chia-Chun Wang, Sumit Agarwal, Ryan James Gasvoda
  • Publication number: 20220365434
    Abstract: The present disclosure relates to a patterning structure having a radiation-absorbing layer and an imaging layer, as well as methods and apparatuses thereof. In particular embodiments, the radiation-absorbing layer provides an increase in radiation absorptivity and/or patterning performance of the imaging layer.
    Type: Application
    Filed: October 1, 2020
    Publication date: November 17, 2022
    Applicant: Lam Research Corporation
    Inventors: Katie Lynn Nardi, Timothy William Weidman, Chenghao Wu, Kevin Li Gu, Boris Volosskiy
  • Patent number: 11495441
    Abstract: In one embodiment, a plasma processing device may include a dielectric window, a vacuum chamber, an energy source, and at least one air amplifier. The dielectric window may include a plasma exposed surface and an air exposed surface. The vacuum chamber and the plasma exposed surface of the dielectric window can cooperate to enclose a plasma processing gas. The energy source can transmit electromagnetic energy through the dielectric window and form an elevated temperature region in the dielectric window. The at least one air amplifier can be in fluid communication with the dielectric window. The at least one air amplifier can operate at a back pressure of at least about 1 in-H2O and can provide at least about 30 cfm of air.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: November 8, 2022
    Assignee: Lam Research Corporation
    Inventors: Jon McChesney, Saravanapriyan Sriraman, Richard A. Marsh, Alexander Miller Paterson, John Holland
  • Patent number: 11495486
    Abstract: Semiconductor processing tools are provided that include an upper support framework, a plurality of semiconductor processing chambers arranged along a first axis, a linear guide system fixedly supported by the upper support framework and extending along a second axis substantially parallel to the first axis, and a carriage. Each chamber has a base portion fixedly mounted relative to the upper support framework and a removable top cover with one or more hoisting features. The carriage includes a hoist arm configured to pivot about a vertical axis that is substantially perpendicular to the second axis, the carriage is configured to movably engage with the linear guide system and translate along the second axis relative to the linear guide system. The carriage and hoist arm are movable such that a hoist feature engagement interface of the hoist arm can be moved engage with hoisting features of any of the removable top covers.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 8, 2022
    Assignee: Lam Research Corporation
    Inventors: Paul Albert Avanzino, Jerrel K. Antolik, Daniel Arthur Brown, Jason Lee Treadwell
  • Patent number: 11488831
    Abstract: A method for treating a substrate includes arranging a substrate in a processing chamber. At least one of a vaporized solvent and a gas mixture including the solvent is supplied to the processing chamber to form a conformal liquid layer of the solvent on exposed surfaces of the substrate. The at least one of the vaporized solvent and the gas mixture is removed from the processing chamber. A reactive gas including a halogen species is supplied to the processing chamber. The conformal liquid layer adsorbs the reactive gas to form a reactive liquid layer that etches the exposed surfaces of the substrate.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 1, 2022
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Ji Zhu, Mark Kawaguchi, Nathan Musselwhite
  • Patent number: 11488810
    Abstract: A processing chamber includes an upper surface and a showerhead arranged to supply gases through the upper surface into the processing chamber. At least a portion of the showerhead extends above the upper surface of the processing chamber. A shroud enclosure is arranged on the upper surface of the processing chamber. The shroud enclosure is arranged around the portion of the showerhead extending above the upper surface of the processing chamber and is configured to isolate radio frequency interference generated by the showerhead.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: November 1, 2022
    Assignee: Lam Research Corporation
    Inventors: Andrew Borth, Christopher Ramsayer
  • Publication number: 20220342301
    Abstract: Various embodiments herein relate to techniques for depositing photoresist material on a substrate. For example, the tin techniques may involve providing the substrate in a reaction chamber; providing a first and second reactant to the reaction chamber, where the first reactant is an organo-metallic precursor having a formula of M1aR1bL1c, where: M1 is a metal having a high patterning radiation-absorption cross-section, R1 is an organic group that survives the reaction between the first reactant and the second reactant and is cleavable from M1 under exposure to patterning radiation, L1 is a ligand, ion, or other moiety that reacts with the second reactant, a?1, b?1, and c?1, and where at least one of the following conditions is satisfied: the photoresist material comprises two or more high-patterning radiation absorbing elements, and/or the photoresist material comprises a composition gradient along a thickness of the photoresist material.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 27, 2022
    Applicant: Lam Research Corporation
    Inventors: Timothy William Weidman, Kevin Li Gu, Katie Lynn Nardi, Chenghao Wu, Boris Volosskiy, Eric Calvin Hansen