Patents by Inventor Michael X. Yang

Michael X. Yang 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).

  • Patent number: 11812523
    Abstract: Apparatus, systems, and methods for processing workpieces are provided. In one example, the system includes a processing chamber. The system includes a workpiece support configured to support a workpiece within the processing chamber. The system includes a heat source configured to emit light toward the workpiece. The system includes a shutter disposed between the workpiece and the heat source. The shutter includes an electrochromic material configurable in a translucent state and an opaque state. When the electrochromic material is configured in the opaque state, the shutter reduces transmission of the light through the shutter, and when the electrochromic material is configured in the translucent state, the light at least partially passes through the shutter. The system includes a controller configured to control the shutter to reduce transmission of light through the shutter during a thermal treatment process.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: November 7, 2023
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Michael X. Yang, Rolf Bremensdorfer
  • Publication number: 20230352294
    Abstract: Apparatus, systems, and methods for processing workpieces are provided. An arc lamp can include a tube. The arc lamp can include one or more inlets configured to receive water to be circulated through the arc lamp during operation as a water wall, the water wall configured to cool the arc lamp. The arc lamp can include a plurality of electrodes configured to generate a plasma in a forming gas introduced into the arc lamp via the one or more inlets. The forming gas can be or can include a mixture of a hydrogen gas and an inert gas, the hydrogen gas in the mixture having a concentration less than 4% by volume. The hydrogen gas can be introduced into the arc lamp prior to generating the plasma. The arc lamp may be used for processing workpieces.
    Type: Application
    Filed: June 16, 2023
    Publication date: November 2, 2023
    Inventors: Michael X. Yang, Rolf Bremensdorfer, Dave Camm, Joseph Cibere, Dieter Hezler, Shawming Ma, Yun Yang
  • Patent number: 11791181
    Abstract: Systems and methods for thermal treatment of a workpiece are provided. In one example, a method for conducting a treatment process on a workpiece, such as a thermal treatment process, an annealing treatment process, an oxidizing treatment process, or a reducing treatment process in a processing apparatus is provided. The processing apparatus includes a plasma chamber and a processing chamber. The plasma chamber and the processing chamber are separated by a plurality of separation grids or grid plates. The separation grids or grid plates operable to filter ions generated in the plasma chamber. The processing chamber has a workpiece support operable to support a workpiece.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: October 17, 2023
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Ting Xie, Hua Chung, Haochen Li, Xinliang Lu, Shawming Ma, Haichun Yang, Michael X. Yang
  • Patent number: 11791166
    Abstract: Systems and methods for etching titanium containing layers on a workpiece are provided. In one example, a method includes placing the workpiece on a workpiece support in a processing chamber. The workpiece includes a first layer and a second layer. The first layer is a titanium containing layer. The method includes admitting a process gas into the processing chamber. The process gas includes an ozone gas and a fluorine containing gas. The method includes exposing the first layer and the second layer on the workpiece to the process gas to at least partially etch the first layer at a greater etch rate relative to the second layer.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: October 17, 2023
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Qi Zhang, Haichun Yang, Hua Chung, Ting Xie, Michael X. Yang
  • 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
  • Publication number: 20230273596
    Abstract: A control system operable to train a control tuner to generate temperature setpoint tracking improvements for a thermal processing system is provided. In one example implementation, temperature setpoint tracking improvements are achieved by generating system controller parameter adjustments based on a difference between a simulated workpiece temperature estimate and an actual workpiece temperature estimate. For example, a system model can generate a simulated workpiece temperature estimate simulating an actual workpiece temperature estimate, and based on the difference between the simulated and actual workpiece temperature estimates, generate clone controller parameter adjustments. The clone controller parameter adjustments can be used to generate system controller parameter adjustments, which can improve temperature setpoint tracking for the thermal processing system.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 31, 2023
    Inventors: Michael X. Yang, Markus Lieberer, Joseph Cibere
  • Patent number: 11721539
    Abstract: Apparatus, systems, and methods for processing workpieces are provided. An arc lamp can include a tube. The arc lamp can include one or more inlets configured to receive water to be circulated through the arc lamp during operation as a water wall, the water wall configured to cool the arc lamp. The arc lamp can include a plurality of electrodes configured to generate a plasma in a forming gas introduced into the arc lamp via the one or more inlets. The forming gas can be or can include a mixture of a hydrogen gas and an inert gas, the hydrogen gas in the mixture having a concentration less than 4% by volume. The hydrogen gas can be introduced into the arc lamp prior to generating the plasma. The arc lamp may be used for processing workpieces.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: August 8, 2023
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD., MATTSON TECHNOLOGY, INC
    Inventors: Michael X. Yang, Rolf Bremensdorfer, Dave Camm, Joseph Cibere, Dieter Hezler, Shawming Ma, Yun Yang
  • Patent number: 11699603
    Abstract: A thermal processing system is provided. The thermal processing system can include a processing chamber and a workpiece disposed within the processing chamber. The thermal processing system can include a heat source configured to emit light towards the workpiece. The thermal processing system can further include a tunable reflective array disposed between the workpiece and the heat source. The tunable reflective array can include a plurality of pixels. Each pixel of the plurality of pixels can include an electrochromatic material configurable in a translucent state or an opaque state. When the electrochromatic material of a pixel is configured in the translucent state, the light at least partially passes through the pixel. Conversely, transmission of light through a pixel is reduced when the electrochromatic material of the pixel is configured in the opaque state.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 11, 2023
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Michael X. Yang, Chen-an Chen
  • Patent number: 11644817
    Abstract: A control system operable to train a control tuner to generate temperature setpoint tracking improvements for a thermal processing system is provided. In one example implementation, temperature setpoint tracking improvements are achieved by generating system controller parameter adjustments based on a difference between a simulated workpiece temperature estimate and an actual workpiece temperature estimate. For example, a system model can generate a simulated workpiece temperature estimate simulating an actual workpiece temperature estimate, and based on the difference between the simulated and actual workpiece temperature estimates, generate clone controller parameter adjustments. The clone controller parameter adjustments can be used to generate system controller parameter adjustments, which can improve temperature setpoint tracking for the thermal processing system.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: May 9, 2023
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Michael X. Yang, Markus Lieberer, Joseph Cibere
  • Publication number: 20230098442
    Abstract: Support plates for localized heating in thermal processing systems to uniformly heat workpieces are provided. In one example implementation, localized heating is achieved by modifying a heat transmittance of a support plate such that one or more portions of the support plate proximate the areas that cause cold spots transmit more heat than the rest of the support plate. For example, the one or more portions (e.g., arears proximate to one or more support pins) of the support plate have a higher heat transmittance (e.g., a higher optical transmission) than the rest of the support plate. In another example implementation, localized heating is achieved by heating a workpiece via a coherent light source through a transmissive support structure (e.g., one or more support pins, or a ring support) in addition to heating the workpiece globally by light from heat sources.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Rolf Bremensdorfer, Johannes Keppler, Michael X. Yang, Thorsten Hülsmann
  • Publication number: 20230099054
    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: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Michael X. Yang, Christian Pfahler, Alexandr Cosceev
  • Publication number: 20230091035
    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 processing system can include a loadlock chamber, a transfer chamber, and at least two processing chamber having two or more processing stations. The processing system further includes a storage chamber for storing replaceable parts. The transfer chamber includes a workpiece handling robot. The workpiece handling robot can be configured to transfer a plurality of replaceable parts from the processing stations to the storage chamber.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Inventors: Martin L. Zucker, Peter J. Lembesis, Ted Tevis, Ryan M. Pakulski, Michael X. Yang
  • Patent number: 11586113
    Abstract: Post exposure bake methods are provided. In one example, a method includes placing a workpiece having a photoresist layer on a workpiece support disposed in a processing chamber. The method includes exposing the photoresist to photons of a wavelength through a photomask. The method includes performing a post exposure bake heating process on the workpiece with the photoresist heating layer. The post exposure bake heating process can include heating the workpiece with both a radiant heat source and a second heat source disposed in the workpiece support until a temperature of the workpiece reaches a post exposure bake setpoint temperature.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 21, 2023
    Assignees: MATTSON TECHNOLOGY, INC, BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD
    Inventor: Michael X. Yang
  • Patent number: 11521847
    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: April 29, 2020
    Date of Patent: December 6, 2022
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD., MATTSON TECHNOLOGY, INC.
    Inventors: Michael X. Yang, Christian Pfahler, Alexandr Cosceev
  • Patent number: 11521868
    Abstract: Support plates for localized heating in thermal processing systems to uniformly heat workpieces are provided. In one example implementation, localized heating is achieved by modifying a heat transmittance of a support plate such that one or more portions of the support plate proximate the areas that cause cold spots transmit more heat than the rest of the support plate. For example, the one or more portions (e.g., areas proximate to one or more support pins) of the support plate have a higher heat transmittance (e.g., a higher optical transmission) than the rest of the support plate. In another example implementation, localized heating is achieved by heating a workpiece via a coherent light source through a transmissive support structure (e.g., one or more support pins, or a ring support) in addition to heating the workpiece globally by light from heat sources.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: December 6, 2022
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Rolf Bremensdorfer, Johannes Keppler, Michael X. Yang, Thorsten Hülsmann
  • Patent number: 11495437
    Abstract: Processes for oxidation of a workpiece are provided. In one example, a method includes placing a workpiece on a workpiece support in a processing chamber. The method includes performing a pre-oxidation treatment process on the workpiece in the processing chamber to initiate oxide layer formation on the workpiece. The method includes performing a remote plasma oxidation process on the workpiece in the processing chamber to continue the oxide layer formation on the workpiece. Subsequent to performing the pre-oxidation treatment process and the remote plasma oxidation process, the method can include removing the workpiece from the processing chamber. In some embodiments, the remote plasma oxidation process can include generating a first plasma from a remote plasma oxidation process gas in a plasma chamber; filtering species generated in the plasma to generate a mixture having one or more radicals; and exposing the one or more radicals to the workpiece.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 8, 2022
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Ting Xie, Xinliang Lu, Hua Chung, Michael X. Yang
  • Patent number: 11495456
    Abstract: Processes for surface treatment of a workpiece are provided. In one example implementation, a method can include placing the workpiece on a workpiece support in a processing chamber. The method can include admitting a process gas into the processing chamber. The process gas can include an ozone gas. The method can include exposing the silicon nitride layer and the low-k dielectric layer to the process gas to modify a surface wetting angle of the silicon nitride layer.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: November 8, 2022
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD, MATTSON TECHNOLOGY, IN
    Inventors: Ting Xie, Xinliang Lu, Hua Chung, Michael X. Yang
  • Patent number: 11462413
    Abstract: Apparatus, systems, and methods for conducting an etch removal process on a workpiece are provided. The method can include generating a plasma from a deposition process gas in a plasma chamber using a plasma source to deposit a passivation layer on certain layers of a high aspect ratio structure. The method can include generating a plasma from an etch process gas in a plasma chamber using a plasma source to remove certain layers from the high aspect ratio structure. The method can include removing silicon nitride layers at a faster etch rate than silicon dioxide layers on the high aspect ratio structure.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: October 4, 2022
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD., MATTSON TECHNOLOGY, INC
    Inventors: Shanyu Wang, Chun Yan, Hua Chung, Michael X. Yang, Tsai Wen Sung, Qi Zhang
  • Publication number: 20220223405
    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: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Shuang Meng, Shawming Ma, Michael X. Yang
  • Patent number: 11387115
    Abstract: Apparatus, systems, and methods for conducting a silicon containing material removal process on a workpiece are provided. In one example implementation, the method can include generating species from a process gas in a first chamber using an inductive coupling element. The method can include introducing a fluorine containing gas with the species to create a mixture. The mixture can include exposing a silicon structure of the workpiece to the mixture to remove at least a portion of the silicon structure.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: July 12, 2022
    Assignees: BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY, CO., LTD, MATTSON TECHNOLOGY, INC.
    Inventors: Chun Yan, Tsai Wen Sung, Sio On Lo, Hua Chung, Michael X. Yang