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: 10964528
    Abstract: Processes for surface treatment of a workpiece are provided. In one example implementation, organic radicals (e.g., methyl CH3 radicals) can be generated by exciting and/or dissociating hydrogen and/or inert gas (e.g., Ar, He, etc) molecules in a remote plasma source and a subsequent reaction with organic molecule (alkanes and alkenes). The organic radicals (e.g., methyl CH3 radicals) can be exposed to the silicon and/or silicon germanium surfaces. After exposure to the organic radicals, the silicon and/or silicon germanium surfaces can be stable in air for a time period (e.g., days) with reduced surface oxidation such that the silicon and/or silicon germanium surfaces can be effectively protected from oxidation. As such, native surface oxide removal process before subsequent process steps can be eliminated.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 30, 2021
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Michael X. Yang, Hua Chung, Xinliang Lu, Haochen Li, Ting Xie, Qi Zhang
  • Publication number: 20210082724
    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: Application
    Filed: September 18, 2020
    Publication date: March 18, 2021
    Inventors: Ting Xie, Hua Chung, Haochen Li, Xinliang Lu, Shawming Ma, Haichun Yang, Michael X. Yang
  • Patent number: 10950428
    Abstract: Processes for providing nitridation on a workpiece, such as a semiconductor, are provided. In one example implementation, a method can include supporting a workpiece on a workpiece support. The method can include exposing the workpiece to species generated from a capacitively coupled plasma to provide nitridation on the workpiece. The method can also include exposing the workpiece to species generated form an inductively coupled plasma to provide nitridation on the workpiece.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 16, 2021
    Assignees: Mattson Technology, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Ting Xie, Hua Chung, Xinliang Lu, Shawming Ma, Michael X. Yang
  • Publication number: 20210066074
    Abstract: Processes for providing nitridation on a workpiece, such as a semiconductor, are provided. In one example implementation, a method can include supporting a workpiece on a workpiece support. The method can include exposing the workpiece to species generated from a capacitively coupled plasma to provide nitridation on the workpiece. The method can also include exposing the workpiece to species generated form an inductively coupled plasma to provide nitridation on the workpiece.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 4, 2021
    Inventors: Ting Xie, Hua Chung, Xinliang Lu, Shawming Ma, Michael X. Yang
  • Publication number: 20210066047
    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: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Inventors: Tsai Wen Sung, Chun Yan, Michael X. Yang
  • Patent number: 10910228
    Abstract: Surface treatment processes for treating a workpiece with organic radicals are provided. In one example implementation, a method for processing a workpiece having a semiconductor material and a carbon containing layer (e.g., photoresist) can include a surface treatment process on the workpiece. The surface treatment process can include generating one or more species in a first chamber (e.g., a plasma chamber). The surface treatment process can include mixing one or more hydrocarbon radicals with the species to create a mixture. The surface treatment process can include exposing the carbon containing layer to the mixture in a second chamber (e.g., a processing chamber).
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 2, 2021
    Assignees: Mattson Technolgoy, Inc., Beijing E-Town Semiconductor Technology Co., Ltd.
    Inventors: Michael X. Yang, Hua Chung, Xinliang Lu
  • Publication number: 20210020445
    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: Application
    Filed: July 16, 2020
    Publication date: January 21, 2021
    Inventors: Shanyu Wang, Chun Yan, Hua Chung, Michael X. Yang, Tsai Wen Sung, Qi Zhang
  • Publication number: 20210020413
    Abstract: Processes for removing photoresist layer(s) from a workpiece, such as a semiconductor are provided. In one example implementation, a method for processing a workpiece can include supporting a workpiece on a workpiece support. The workpiece can have a photoresist layer and a low-k dielectric material layer. The method can include performing a hydrogen radical etch process on the workpiece to remove at least a portion of the photoresist layer. The method can also include exposing the workpiece to an ozone process gas to remove at least a portion of the photoresist layer.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Inventors: Ting Xie, Hua Chung, Bin Dong, Xinliang Lu, Haichun Yang, Michael X. Yang
  • Publication number: 20210005456
    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 method includes performing a spacer treatment process to expose the workpiece to species generated from a first process gas in a first plasma to perform a spacer treatment process on a spacer layer on the workpiece. The first plasma can be generated in the processing chamber. After performing the spacer treatment process, the method can include performing a spacer etch process to expose the workpiece to neutral radicals generated from a second process gas in a second plasma to etch at least a portion of the spacer layer on the workpiece. The second plasma can be generated in a plasma chamber that is remote from the processing chamber.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Tsai Wen Sung, Chun Yan, Hua Chung, Michael X. Yang, Dixit V. Desai, Peter J. Lembesis
  • Publication number: 20200396798
    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: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Inventors: Michael X. Yang, Rolf Bremensdorfer
  • Publication number: 20200373129
    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: Application
    Filed: May 20, 2020
    Publication date: November 26, 2020
    Inventors: Ting Xie, Xinliang Lu, Hua Chung, Michael X. Yang
  • Publication number: 20200365381
    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: May 13, 2020
    Publication date: November 19, 2020
    Inventors: Martin L. Zucker, Peter J. Lembesis, Ted Tevis, Ryan M. Pakulski, Michael X. Yang
  • Publication number: 20200350158
    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: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Michael X. Yang, Christian Pfahler, Alexandr Cosceev
  • Publication number: 20200350161
    Abstract: Processes for selective deposition of material on a workpiece are provided. In one example, the method includes placing a workpiece on a workpiece support in a processing chamber. The workpiece has a first material and a second material. The second material is different from the first material. The method includes performing an organic radical based surface treatment process on the workpiece to modify an adsorption characteristic of the first material selectively relative to the second material such that the first material has a first adsorption characteristic and the second material has a second adsorption characteristic. The second adsorption characteristic being different from the first adsorption characteristic. The method includes performing a deposition process on the workpiece such that a material is selectively deposited on the first material relative to the second material.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 5, 2020
    Inventors: Michael X. Yang, Hua Chung, Xinliang Lu
  • Patent number: 10804109
    Abstract: Surface treatment processes for treating low-k dielectric materials are provided. One example implementation can include a method for processing a workpiece. The workpiece can include a silicon and carbon containing film material. The method can include treating the workpiece with a surface treatment process. The surface treatment process can include generating one or more species in a first chamber; mixing one or more hydrocarbon molecules with the species to create a mixture comprising one or more organic radicals; and exposing the silicon and carbon containing layer on the workpiece to the mixture in a second chamber.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: October 13, 2020
    Assignees: MATTSON TECHNOLOGY, INC., BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventors: Michael X. Yang, Hua Chung, Xinliang Lu
  • Publication number: 20200294826
    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: Application
    Filed: March 9, 2020
    Publication date: September 17, 2020
    Inventors: Michael X. Yang, Chen-an Chen
  • Patent number: 10760976
    Abstract: Thermal imaging of heat sources in thermal processing systems for determination of workpiece temperature are provided. In one example, a thermal processing apparatus can include a processing chamber, a workpiece support, a plurality of heat sources configured to heat a workpiece, and at least one camera. The at least one camera can capture one or more images of thermal radiation of the plurality of heat sources during thermal treatment of the workpiece. In one example, a method for calibrating the camera can include obtaining the one or more images of thermal radiation of at least one heat source, obtaining one or more reference signals indicative of irradiation of the at least one heat source, and calibrating the camera based at least in part on a comparison between the one or more images of thermal radiation and the one or more reference signals indicative of irradiation of the heat source.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: September 1, 2020
    Assignees: MATTSON TECHNOLOGY, INC., BEIJING E-TOWN SEMICONDUCTOR TECHNOLOGY CO., LTD.
    Inventor: Michael X. Yang
  • Publication number: 20200243305
    Abstract: A plasma process apparatus is provided. The plasma processing apparatus includes a plasma chamber and a processing chamber. The processing chamber includes a substrate holder operable to support a substrate. The plasma processing apparatus further includes a separation grid separating the plasma chamber from the processing chamber. The separation grid includes a gas delivery system. The gas delivery system defines a channel, an inlet and a plurality of outlets in fluid communication with the inlet via the channel. The gas delivery system is configured to reduce non-uniformities associated with a treatment process performed on the substrate.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 30, 2020
    Inventors: Weimin Zeng, Chun Yan, Dixit V. Desai, Hua Chung, Michael X. Yang, Peter Lembesis, Ryan M. Pakulski, Martin Zucker
  • Publication number: 20200234969
    Abstract: Apparatus, systems, and methods for processing a workpiece are provided. In one example implementation, the workpiece can include a silicon nitride layer and a silicon layer. The method can include admitting an ozone gas into a processing chamber. The method can include exposing the workpiece to the ozone gas. The method can include generating one or more species from a process gas using a plasma induced in a plasma chamber. The method can include filtering the one or more species to create a filtered mixture. The method can further include exposing the workpiece to the filtered mixture in the processing chamber such that the filtered mixture at least partially etches the silicon nitride layer more than the silicon layer. Due to ozone gas reacting with surface of silicon layer prior to etching process with fluorine-containing gas, selective silicon nitride etch over silicon can be largely promoted.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Inventors: Shanyu Wang, Ting Xie, Chun Yan, Xinliang Lu, Hua Chung, Michael X. Yang
  • Publication number: 20200234983
    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: Application
    Filed: February 24, 2020
    Publication date: July 23, 2020
    Inventors: Michael X. Yang, Shawming Ma