Patents Assigned to Mattson Technology
  • Patent number: 12027427
    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: July 23, 2020
    Date of Patent: July 2, 2024
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Markus Lieberer, Christian Pfahler, Markus Hagedorn, Michael vanAbbema, Alexandr Cosceev
  • Patent number: 12014920
    Abstract: Apparatus, systems, and methods for processing workpieces are provided. In one example implementation, a hydrogen gas mixed with an inert gas can be reacted with an oxygen gas to oxidize a workpiece at atmospheric pressure. A chemical reaction of a hydrogen gas with an oxygen gas facilitated by a hot workpiece surface can positively affect an oxidation process. A reaction speed of the chemical reaction can be slowed down by mixing the hydrogen gas with an inert gas. Such mixture can effectively reduce a partial pressure of the hydrogen gas. As such, the oxidation process can be carried out at atmospheric pressure, thereby, in an atmospheric thermal processing chamber.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: June 18, 2024
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Michael X. Yang, Christian Pfahler, Alexandr Cosceev
  • Patent number: 12009220
    Abstract: A method for processing a workpiece, a plasma processing apparatus and a semiconductor device are provided. The method includes placing a workpiece including a spacer layer on a workpiece support in a chamber; selecting a composition modulation gas to modulate a volume ratio of carbon and fluorine to process the workpiece, the composition modulation gas includes one or more molecules, the volume ratio of carbon and fluorine is indicative of a distribution of carbon-based polymer deposited on the spacer layer; generating one or more species using one or more plasmas from a process gas to create a mixture, the process gas includes an etching gas and the composition modulation gas; and exposing the workpiece to the mixture to form a polymer layer on at least a portion of the spacer layer and to etch at least a portion of the spacer layer.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: June 11, 2024
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Fei Yu, Mengyang Xin, Junliang Li
  • Patent number: 12009184
    Abstract: A lift pin assembly for a lift pin of a plasma processing apparatus is provided. The lift pin assembly includes a pin housing defining an opening into which a lift pin extends. The pin housing is positioned such that the opening is aligned with an opening defined by an electrostatic chuck. The assembly includes a pin height adjustment member partially positioned within the opening defined by the pin housing. The pin height adjustment member is movable along an axis in a first direction and a second direction to move the lift pin into and out of the opening defined by the electrostatic chuck. The assembly includes a pin holder assembly at least partially positioned within an opening defined by the pin height adjustment member. The pin holder assembly is configured to hold the lift pin such that the lift pin is aligned with the opening defined by the electrostatic chuck.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: June 11, 2024
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Changle Guan, Maolin Long
  • Patent number: 12002701
    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: December 15, 2021
    Date of Patent: June 4, 2024
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventor: Maolin Long
  • Patent number: 12002652
    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: November 29, 2021
    Date of Patent: June 4, 2024
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Stephen E. Savas, Shawming Ma
  • Patent number: 11955388
    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 17, 2023
    Date of Patent: April 9, 2024
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Michael Storek, Rolf Bremensdorfer, Markus Lieberer, Michael Yang
  • Patent number: 11955315
    Abstract: A processing apparatus for processing a workpiece is presented. The processing apparatus includes a processing chamber, a plasma chamber separated from the processing chamber disposed on a first side of the processing chamber, and a plasma source configured to generate a plasma in the plasma chamber. One or more radiative heat sources configured to heat the workpiece disposed on a second and opposite side of the first side of the processing chamber. A dielectric window is disposed between the workpiece support and the one or more heat sources. The processing apparatus includes a rotation system configured to rotate the workpiece, the rotation system comprising a magnetic actuator.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 9, 2024
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Dieter Hezler, Keli Huang, Jianmin Ji, Deqiang Zeng, Manuel Sohn
  • Patent number: 11923215
    Abstract: A processing system for processing a plurality of workpieces includes a transfer chamber in process flow communication with a first processing chamber and a second processing chamber, the transfer chamber having a first straight side, wherein the first process chamber includes at least one first processing station, and wherein the first processing chamber is disposed along the first straight side, wherein the second process chamber includes at least two second processing stations, wherein the second processing chamber is disposed along the first straight side, and wherein the second process chamber disposed in linear arrangement with the first process chamber along the first straight side, and wherein the transfer chamber includes at least one workpiece handling robot configured to transfer at least one workpiece to the at least one first processing station and the at least two second processing stations.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: March 5, 2024
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventor: Michael Yang
  • Patent number: 11848204
    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: May 27, 2022
    Date of Patent: December 19, 2023
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd, Mattson Technology, Inc.
    Inventors: Stephen E. Savas, Shawming Ma
  • Patent number: 11837447
    Abstract: An apparatus for combining plasma processing and thermal processing of a workpiece is presented. The apparatus includes a processing chamber, a plasma chamber separated from the processing chamber disposed on a first side of the processing chamber, and a plasma source configured to generate a plasma in the plasma chamber. A quartz workpiece support is disposed within the processing chamber, the workpiece support configured to support a workpiece. One or more radiative heat sources configured to heat the workpiece are disposed on a second and opposite side of the first side of the processing chamber. A dielectric window is disposed between the workpiece support and the one or more heat sources. In addition, the apparatus includes a temperature measurement system configured to obtain a temperature measurement indicative of a temperature of the workpiece.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: December 5, 2023
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Dixit Desai, Alex Wansidler, Dieter Hezler, Joseph Cibere, Rolf Bremensdorfer, Pete Lembesis, Michael Yang
  • Patent number: 11837493
    Abstract: An electrostatic chuck including a clamping layer having a first clamping electrode and a second clamping electrode is disclosed. A first clamping electrode defining a first clamping zone and a second clamping zone is provided. The first clamping zone and the second clamping zone are separated by a first gap and are electrically connected by at least one electrical connection extending across the first gap. A second clamping electrode disposed radially outward from the first clamping electrode. The second clamping electrode defining a third clamping zone and a fourth clamping zone that are separated by a second gap. The third clamping zone and the fourth clamping zone are electrically connected by at least one electrical connection extending across the second gap. Plasma processing apparatuses and systems incorporating the electrostatic chuck are also provided.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: December 5, 2023
    Assignees: Beijing E-Town Semiconductor Technology Co., Ltd., Mattson Technology, Inc.
    Inventors: Maolin Long, Weimin Zeng
  • Patent number: 11764072
    Abstract: A method for processing a workpiece is provided. The method can include placing a workpiece on a susceptor disposed within a processing chamber. The method can include performing a multi-cycle thermal treatment process on the workpiece in the processing chamber. The multi-cycle thermal treatment process can include at least two thermal cycles. Each thermal cycle of the at least two thermal cycles can include performing a first treatment on the workpiece at a first temperature; heating a device side surface of the workpiece to a second temperature in less than one second; performing a second treatment on the workpiece at approximately the second temperature; and cooling the workpiece subsequent to performing the second treatment.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: September 19, 2023
    Assignees: Beijing E-Town Semiconductor Technology, Co., LTD, Mattson Technology, Inc.
    Inventors: Michael X. Yang, Shawming Ma
  • Patent number: 11387111
    Abstract: Methods for material removal of a film, such as a metal nitride film, from a workpiece are provided. One example implementation is directed to a method for processing a workpiece. The workpiece can include a film (e.g., a metal nitride film). The method can include generating one or more species (e.g., hydrogen radicals, excited inert gas molecules, etc.). The method can include mixing alkyl halide with the one or more species to generate one or more alkyl radicals. The method can include exposing the film to the one or more alkyl radicals.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: July 12, 2022
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology, Co., LTD
    Inventors: Michael X. Yang, Hua Chung, Xinliang Lu
  • Patent number: 11289323
    Abstract: Processes and apparatuses for the treatment of semiconductor workpieces are provided. In some embodiments, a method can include placing the workpiece into a process chamber; vaporizing a solvent to create a vaporized solvent; introducing the vaporized solvent into the process chamber; and exposing the workpiece to the vaporized solvent.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 29, 2022
    Assignees: Beijing E-Town Semiconductor Co, , Ltd., Mattson Technology, Inc.
    Inventors: Shuang Meng, Shawming Ma, Michael X. Yang
  • Patent number: 11276560
    Abstract: Systems and methods for processing a workpiece are provided. In one example, a method includes placing a workpiece on a workpiece support in a processing chamber. The workpiece has at least one material layer and at least one structure thereon. The method includes admitting a process gas into a plasma chamber, generating one or more species from the process gas, and filtering the one or more species to create a filtered mixture. The method further includes providing RF power to a bias electrode to generate a second mixture and exposing the workpiece to the second mixture to etch a least a portion of the material layer and to form a film on at least a portion of the material layer.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: March 15, 2022
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Tsai Wen Sung, Chun Yan, Michael X. Yang
  • Patent number: 11264249
    Abstract: Apparatus, systems, and methods for conducting a hardmask (e.g., carbon containing hardmask) removal process on a workpiece are provided. In one example implementation, a process can include admitting a process gas into a plasma chamber, generating a plasma in the plasma chamber from the process gas using an inductively coupled plasma source, and exposing the carbon containing hardmask to the plasma to remove at least a portion of the carbon containing hardmask. The process gas can include a sulfur containing gas. The process gas does not include a halogen containing gas. The inductively coupled plasma source can be separated from the plasma chamber by a grounded electrostatic shield to reduce capacitive coupling between the inductively coupled plasma source and the plasma.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 1, 2022
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Fen Dai, Tinghao Wang, Oliver D. Jan, Moo-Hyun Kim, Shawming Ma, Zhongming Liu
  • Patent number: 11255606
    Abstract: Systems and methods for gas flow in a thermal processing system are provided. In some example implementations a gas flow pattern inside the process chamber of a millisecond anneal system can be improved by implementing one or more of the following: (1) altering the direction, size, position, shape and arrangement of the gas injection inlet nozzles, or a combination hereof; (2) use of gas channels in a wafer plane plate connecting the upper chamber with the lower chamber of a millisecond anneal system; and/or (3) decreasing the effective volume of the processing chamber using a liner plate disposed above the semiconductor substrate.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 22, 2022
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Christian Pfahler, Joseph Cibere
  • Patent number: 11257680
    Abstract: Methods for processing a workpiece with fluorine radicals are provided. In one example implementation, the method includes a workpiece having at least one silicon layer and at least one silicon germanium layer. The method can include placing the workpiece on a workpiece support in a processing chamber. The method can include generating one or more species from a process gas in a plasma chamber. The method can include filtering the one or more species to create a filtered mixture. The method can include exposing the workpiece to the filtered mixture to remove at least a portion of the at least one silicon layer.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: February 22, 2022
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Qi Zhang, Xinliang Lu
  • Patent number: 11257696
    Abstract: Systems and methods for processing workpieces, such as semiconductor workpieces are provided. One example embodiment is directed to a processing system for processing a plurality of workpieces. The plasma processing system can include a loadlock chamber. The loadlock chamber can include a workpiece column configured to support a plurality of workpieces in a stacked arrangement. The system can further include at least two process chambers. The at least two process chambers can have at least two processing stations. Each processing station can have a workpiece support for supporting a workpiece during processing in the process chamber. The system further includes a transfer chamber in process flow communication with the loadlock chamber and the process chamber. The transfer chamber includes a rotary robot. The rotary robot can be configured to transfer a plurality of workpieces from the stacked arrangement in the loadlock chamber to the at least two processing stations.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 22, 2022
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Michael Yang, Ryan Pakulski