Patents by Inventor Siyao Luan

Siyao Luan 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).

  • Publication number: 20230386889
    Abstract: A susceptor for semiconductor substrate processing is disclosed herein. In some embodiments, the susceptor may comprise an inner susceptor portion and an outer susceptor portion. The susceptor portions may self-align via complementary features, such as tabs on the outer susceptor and recesses on the inner susceptor portion. The inner susceptor portion may contain several contact pads with which to support a wafer during semiconductor processing. In some embodiments, the contact pads are hemispherical to reduce contact area with the wafer, thereby reducing risk of backside damage. The inner susceptor portion may contain a cavity with which to receive a thermocouple. In some embodiments, the diameter of the cavity is greater than the diameter of the thermocouple such that the thermocouple does not contact the walls of the cavity during processing, thereby providing highly accurate temperature measurements.
    Type: Application
    Filed: August 11, 2023
    Publication date: November 30, 2023
    Inventors: Saket Rathi, Shiva K.T. Rajavelu Muralidhar, Siyao Luan, Alexandros Demos, Xing Lin
  • Patent number: 11764101
    Abstract: A susceptor for semiconductor substrate processing is disclosed herein. In some embodiments, the susceptor may comprise an inner susceptor portion and an outer susceptor portion. The susceptor portions may self-align via complementary features, such as tabs on the outer susceptor and recesses on the inner susceptor portion. The inner susceptor portion may contain several contact pads with which to support a wafer during semiconductor processing. In some embodiments, the contact pads are hemispherical to reduce contact area with the wafer, thereby reducing risk of backside damage. The inner susceptor portion may contain a cavity with which to receive a thermocouple. In some embodiments, the diameter of the cavity is greater than the diameter of the thermocouple such that the thermocouple does not contact the walls of the cavity during processing, thereby providing highly accurate temperature measurements.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: September 19, 2023
    Assignee: ASM IP Holding, B.V.
    Inventors: Saket Rathi, Shiva K. T. Rajavelu Muralidhar, Siyao Luan, Alexandros Demos, Xing Lin
  • Publication number: 20220189804
    Abstract: A fixture includes a frame, a leveling plate, a bracket, and a laser profiler. The frame is arranged for fixation above a reaction chamber arranged to deposit a film onto a substrate. The leveling plate is supported on the frame. The bracket is supported on the leveling plate. The laser profiler is suspended from the bracket, overlays the reaction chamber, and has a field of view that extends through the leveling plate and the frame to determine position of a target within the reaction chamber. Semiconductor processing systems and methods of determining position of targets within reaction chambers in semiconductor processing systems are also described.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 16, 2022
    Inventors: Siyao Luan, Peipei Gao, Xing Lin, Alexandros Demos, Kishor Patil
  • Publication number: 20220181193
    Abstract: A substrate support and lift assembly configured to support and lift a substrate from a susceptor is disclosed. The substrate support and lift assembly can include a susceptor support and a lift pin. The susceptor support can be configured to support the susceptor thereon. The susceptor support includes a plurality of support arms each extending radially from a central portion of the susceptor support to a terminus. Each of the plurality of support arms includes an aperture extending therethrough. The lift pin can be configured to fit through the aperture of a corresponding support arm to lift a substrate on the susceptor.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 9, 2022
    Inventors: Peipei Gao, Wentao Wang, Xing Lin, Han Ye, Ion Hong Chao, Siyao Luan, Alexandros Demos, Fan Gao
  • Publication number: 20210125853
    Abstract: A susceptor for semiconductor substrate processing is disclosed herein. In some embodiments, the susceptor may comprise an inner susceptor portion and an outer susceptor portion. The susceptor portions may self-align via complementary features, such as tabs on the outer susceptor and recesses on the inner susceptor portion. The inner susceptor portion may contain several contact pads with which to support a wafer during semiconductor processing. In some embodiments, the contact pads are hemispherical to reduce contact area with the wafer, thereby reducing risk of backside damage. The inner susceptor portion may contain a cavity with which to receive a thermocouple. In some embodiments, the diameter of the cavity is greater than the diameter of the thermocouple such that the thermocouple does not contact the walls of the cavity during processing, thereby providing highly accurate temperature measurements.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 29, 2021
    Inventors: Saket Rathi, Shiva K.T. Rajavelu Muralidhar, Siyao Luan, Alexandros Demos, Xing Lin