Patents Assigned to Mattson Technology, Inc.
  • Patent number: 12603256
    Abstract: A pedestal assembly is provided. The pedestal assembly includes an electrostatic chuck configured to support a workpiece. The pedestal assembly includes a focus ring have a top surface and a bottom surface. The focus ring can be configured to surround a periphery of the workpiece when the workpiece is positioned on the electrostatic chuck. The pedestal assembly includes a plurality of insulators. The pedestal assembly further includes a conductive member positioned between at least a portion of the bottom surface of the focus ring and at least a portion of one of the plurality of insulators.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: April 14, 2026
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Changle Guan
  • Patent number: 12580157
    Abstract: A grid assembly for injecting process gas to a chamber. The grid assembly including a gas inlet for delivering the process gas to the grid assembly, a plurality of nozzles extending vertically through at least a portion of the grid assembly, and a plurality of layers in a vertical stacked arrangement. The plurality of layers including a top layer including one or more internal gas injection channels configured to receive process gas from the gas inlet, a bottom layer including a plurality of internal gas injection channels having one or more injection apertures configured to deliver the process gas about a horizontal plane to one or more of the plurality of nozzles, and one or more sublayers disposed between the top layer and the bottom layer, each of the one or more sublayers including an increasing number of internal gas injection channels as the one or more sublayers advance from the top layer to the bottom layer. Plasma processing apparatuses and method of processing workpiece are also provided.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: March 17, 2026
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventor: Maolin Long
  • Patent number: 12562342
    Abstract: Plasma processing apparatus and associated methods are provided. In one example, a plasma processing apparatus can include a plasma chamber configured to be able to hold a plasma. The plasma processing apparatus can include a dielectric window forming at least a portion of a wall of the plasma chamber. The plasma processing apparatus can include an inductive coupling element located proximate the dielectric window. The inductive coupling element can be configured to generate a plasma from the process gas in the plasma chamber when energized with radio frequency (RF) energy. The plasma processing apparatus can include a processing chamber having a workpiece support configured to support a workpiece. The plasma processing apparatus can include an electrostatic shield located between the inductive coupling element and the dielectric window. The electrostatic shield can be grounded via a tunable reactive impedance circuit to a ground reference.
    Type: Grant
    Filed: April 30, 2024
    Date of Patent: February 24, 2026
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Stephen E. Savas, Shawming Ma
  • Patent number: 12535273
    Abstract: A processing apparatus for a thermal treatment of a workpiece is presented. The processing apparatus includes a processing chamber, a workpiece support disposed within the processing chamber, a rotation system configured to rotate the workpiece support, a gas delivery system configured to flow one or more process gases into the processing chamber from the a first side of the processing chamber, one or more gas exhaust ports for removing gas from the processing chamber such that a vacuum pressure can be maintained, one or more radiative heating sources disposed on the second side of the processing chamber, one or more dielectric windows disposed between the workpiece support and the one or more radiative heating sources, and a workpiece temperature measurement system configured at a temperature measurement wavelength range to obtain a measurement indicative of a temperature of a back side of the workpiece.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 27, 2026
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Manuel Sohn, Alex Wansidler, Dieter Hezler, Joseph Cibere, Rolf Bremensdorfer, Martin Zucker, Pete Lembesis, Michael Yang
  • Patent number: 12476077
    Abstract: An induction coil assembly is disclosed including two induction coils. Each induction coil includes a first winding commencing from a first terminal end in a first position in the z-direction and transitioning to a radially inner position in a plane normal to the z-direction and a second winding commencing from the radially inner position and transitioning to a radially outer position in a second plane normal to the z-direction and terminating in a second terminal end. Plasma processing apparatuses incorporating the induction coil assembly are also provided.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: November 18, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Yu Guan
  • Patent number: 12476151
    Abstract: Preheat processes for a millisecond anneal system are provided. In one example implementation, a preheat process can include receiving a substrate on a wafer support plate in a processing chamber of a millisecond anneal system; obtaining one or more temperature measurements of the wafer support plate using a temperature sensor; and applying a preheat recipe to heat the wafer support plate based at least in part on the temperature of the wafer support plate. In one example implementation, a preheat process can include obtaining one or more temperature measurements from a temperature sensor having a field of view of a wafer support plate in a millisecond anneal system; and applying a pulsed preheat recipe to heat the wafer support plate in the millisecond anneal system based at least in part on the one or more temperature measurements.
    Type: Grant
    Filed: May 17, 2024
    Date of Patent: November 18, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Markus Lieberer, Christian Pfahler, Markus Hagedorn, Michael vanAbbema, Alexandr Cosceev
  • Patent number: 12442078
    Abstract: A processing apparatus for a thermal treatment of a workpiece is presented. The processing apparatus includes a processing chamber, a workpiece support disposed within the processing chamber, a gas delivery system, and radiative heat sources for heating the workpiece. The gas delivery system includes a gas showerhead assembly that is transparent to electromagnetic radiation emitted from the one or more radiative heat sources. The gas showerhead assembly includes one or more gas diffusion mechanisms to distribute gas within the enclosure.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: October 14, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd, Mattson Technology, Inc.
    Inventors: Michael Yang, Yun Yang, Manuel Sohn, Silke Hamm, Alex Wansidler, Dieter Hezler, Rolf Bremensdorfer
  • Patent number: 12417900
    Abstract: A plasma processing apparatus including a processing chamber having one or more sidewalls and a dome is provided. The plasma processing apparatus includes a workpiece support disposed in the processing chamber configured to support a workpiece during processing, an induction coil assembly for producing a plasma in the processing chamber, a Faraday shield disposed between the induction coil assembly and the dome, the Faraday shield comprising an inner portion and an outer portion, and a thermal management system. The thermal management system including one or more heating elements configured to heat the dome, and one or more thermal pads disposed between an outer surface of the dome and the heating elements, wherein the one or more thermal pads are configured to facilitate heat transfer between the one or more heating elements and the dome. Thermal management systems and methods for processing workpieces are also provided.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: September 16, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Weimin Zeng, Yu Guan
  • Patent number: 12412758
    Abstract: A processing apparatus for a thermal treatment of a workpiece is presented. The processing apparatus includes a processing chamber, a workpiece support disposed within the processing chamber, a gas delivery system configured to flow one or more process gases into the processing chamber from the a first side of the processing chamber, one or more radiative heating sources disposed on the second side of the processing chamber, one or more dielectric windows disposed between the workpiece support and the one or more radiative heating sources, a rotation system configured to rotate the one or more radiative heating sources, and a workpiece temperature measurement system configured at a temperature measurement wavelength range to obtain a measurement indicative of a temperature of a back side of the workpiece.
    Type: Grant
    Filed: June 27, 2024
    Date of Patent: September 9, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Rolf Bremensdorfer, Dieter Hezler
  • Patent number: 12400916
    Abstract: A thermal processing system for performing thermal processing can include a workpiece support plate configured to support a workpiece and heat source(s) configured to heat the workpiece. The thermal processing system can include window(s) having transparent region(s) that are transparent to electromagnetic radiation within a measurement wavelength range and opaque region(s) that are opaque to electromagnetic radiation within a portion of the measurement wavelength range. A temperature measurement system can include a plurality of infrared emitters configured to emit infrared radiation and a plurality of infrared sensors configured to measure infrared radiation within the measurement wavelength range where the transparent region(s) are at least partially within a field of view the infrared sensors.
    Type: Grant
    Filed: March 6, 2024
    Date of Patent: August 26, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Michael Storek, Rolf Bremensdorfer, Markus Lieberer, Michael Yang
  • Patent number: 12400831
    Abstract: Matching circuitry is disclosed for power generation in a plasma processing apparatus or other application. Matching circuitry is provided in a unitary physical enclosure and is configured to provide impedance matching at multiple different frequencies. For example, in a dual frequency implementation, first and second RF generators can provide electromagnetic energy at first and second respective frequencies in a continuous mode or a pulsed mode to matching circuitry that includes first and second circuit portions. The first circuit portion can include one or more first tuning elements configured to receive RF power at a first frequency and provide impedance matching for a first ICP load (e.g., a primary inductive element). The second circuit portion can include one or more second tuning elements configured to receive RF power at a second different frequency and provide impedance matching for a second ICP load (e.g., a secondary inductive element).
    Type: Grant
    Filed: June 17, 2024
    Date of Patent: August 26, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventor: Maolin Long
  • Patent number: 12399064
    Abstract: Systems and methods for thermal processing of a workpiece at low temperatures are disclosed. In one example implementation, a thermal processing apparatus includes a processing chamber having a workpiece support. The workpiece support can be configured to support a workpiece. The apparatus can include one or more heat sources configured to emit electromagnetic radiation in a first wavelength range to heat the workpiece to a processing temperature. The processing temperature can be in the range of about 50° C. to 150° C. The apparatus can include one or more sensors configured to obtain a measurement of electromagnetic radiation in a second wavelength range when the workpiece is at the processing temperature. The second wavelength range can be different from the first wavelength range.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 26, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Rolf Bremensdorfer, Markus Lieberer, Paul J. Timans, Michael X. Yang
  • Patent number: 12352306
    Abstract: A workpiece support for a thermal processing system is provided. The workpiece support includes a rotor configured to support a workpiece. The workpiece support further includes a gas supply. The gas supply can include a plurality of bearing pads. Each of the bearing pads can be positioned closer to a periphery of the rotor than a center of the rotor. Each of the bearing define one or more passages configured to direct gas onto the rotor to control a position of the rotor along a first axis and a second axis that is substantially perpendicular to the first axis. Furthermore, one or more of the bearing pads define at least one additional passage configured to direct gas onto the rotor to control rotation of the rotor about the first axis.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: July 8, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Manuel Sohn, Rolf Bremensdorfer, Dieter Hezler
  • Patent number: 12347661
    Abstract: A pressure control system is provided. The pressure control system includes a member at least partially positioned within a pumping port fluidly coupled between a multi-head processing chamber and a pump configured to evacuate gases from the multi-head processing chamber. The member is rotatable relative to the pumping port. The pressure control system includes a plurality of pressure sensors. Each of the pressure sensors is configured to obtain data indicative of a pressure of a flow of gas entering the multi-head processing chamber at a corresponding head of the multi-head processing chamber. The pressure control system includes an actuator configured to rotate the member to control a pressure of a flow of gas at a first processing head of the multi-head processing chamber.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: July 1, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Changle Guan, Junliang Li
  • Patent number: 12347677
    Abstract: Plasma processing apparatus and associated methods are provided. In one example, a plasma processing apparatus includes a plasma chamber. The plasma processing apparatus includes a dielectric wall forming at least a portion of the plasma chamber. The plasma processing apparatus includes an inductive coupling element located proximate the dielectric wall. The plasma processing apparatus includes an ultraviolet light source configured to emit an ultraviolet light beam onto a metal surface that faces an interior volume of the plasma chamber. The plasma processing apparatus includes a controller configured to control the ultraviolet light source.
    Type: Grant
    Filed: November 7, 2023
    Date of Patent: July 1, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Stephen E. Savas, Shawming Ma
  • Patent number: 12340981
    Abstract: A gas injection assembly for injecting gas into a processing chamber is provided. In some examples, the gas injection assembly can include an inlet for receiving a gas flow. The gas injection assembly can include a plurality of gas feed ports for distributing the gas flow received from the inlet. The gas injection assembly can include a plurality of subchannels vertically arranged inside of the gas injection assembly, including: an upper subchannel for receiving the gas flow from the inlet and subdividing the gas flow into a set of orifices to form a first gas flow branch and a second gas flow branch, the first gas flow branch corresponding to a first portion of the gas flow passing through a first subset of the set of orifices and the second gas flow branch corresponding to a second portion of the gas flow passing through a second subset of the set of orifices; and a plurality of outlet subchannels for subdividing the gas flow into the plurality of gas feed ports.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: June 24, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Weimin Zeng
  • Patent number: 12334312
    Abstract: A configurable Faraday shield is provided. The configurable Faraday shield includes a plurality of ribs. Each of the ribs can be spaced apart from one another along a circumferential direction. Furthermore, at least a portion of the configurable Faraday shield is movable between at least a first position and a second position to selectively couple the configurable Faraday shield to a radio frequency ground plane. When the at least a portion of the configurable Faraday shield is in the first position, the configurable Faraday shield can be decoupled from the radio frequency ground plane such that the configurable Faraday shield is electrically floating. Conversely, when the at least a portion of the configurable Faraday shield is in the second position, the configurable Faraday shield can be coupled to the radio frequency ground plane such that the configurable Faraday shield is electrically grounded.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: June 17, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventor: Maolin Long
  • Patent number: 12283467
    Abstract: Plasma processing apparatus for processing a workpiece are provided. In one example embodiment, a plasma processing apparatus for processing a workpiece includes a processing chamber, a plasma chamber separated from the processing, and an inductively coupled plasma source configured to generate a plasma in the plasma chamber. The apparatus includes a pedestal disposed within the processing chamber configured to support a workpiece. The apparatus includes an insert disposed in the plasma chamber movable to one or more vertical positions within the plasma chamber. Methods for processing of workpieces are also provided.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: April 22, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Qiqun Zhang
  • Patent number: 12266503
    Abstract: A plasma source array is provided. The plasma source array includes a plurality of hybrid plasma sourcelets disposed on a base plate. Each hybrid sourcelet includes a dielectric tube having an inner area and an outer surface; an inductively coupled plasma source for generating a inductively coupled plasma disposed proximate to the outer surface of the dielectric tube; a capacitively coupled plasma source for generating a capacitively coupled plasma disposed within the inner area of the dielectric tube; and a gas injection system configured to supply one or more process gases to the inner area of the dielectric tube. Plasma processing apparatuses incorporating the plasma source array and methods of use are also provided.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: April 1, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., LTD, Mattson Technology, Inc.
    Inventor: Maolin Long
  • Patent number: 12261073
    Abstract: An electrostatic chuck including a workpiece support surface, clamping layer, heating layer, thermal control system, and sealing band is disclosed. The sealing band surrounds an outer perimeter of the electrostatic chuck including at least a portion of the workpiece surface. The sealing band has a width greater than about 3 millimeters (mm) up to about 10 mm. Plasma processing apparatuses and systems incorporating the electrostatic chuck are also provided.
    Type: Grant
    Filed: May 3, 2024
    Date of Patent: March 25, 2025
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventor: Maolin Long