Patents by Inventor Travis Lee Koh

Travis Lee Koh 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: 10904996
    Abstract: Embodiments described herein generally relate to plasma assisted or plasma enhanced processing chambers. More specifically, embodiments herein relate to electrostatic chucking (ESC) substrate supports configured to provide pulsed DC voltage, and methods of applying a pulsed DC voltage, to a substrate during plasma assisted or plasma enhanced semiconductor manufacturing processes.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: January 26, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Travis Lee Koh, Haitao Wang, Philip Allan Kraus, Vijay D. Parkhe, Daniel Distaso, Christopher A. Rowland, Mark Markovsky, Robert Casanova
  • Patent number: 10714372
    Abstract: The present disclosure generally relates to plasma assisted or plasma enhanced processing chambers. More specifically, embodiments herein relate to electrostatic chucking (ESC) substrate supports configured to provide independent pulses of DC voltage through a switching system to electrodes disposed through the ESC substrate support, or to electrodes disposed on a surface of the ESC, or to electrodes embedded in the ESC substrate support. The switching system can independently alter the frequency and duty cycle of the pulsed DC voltage that is coupled to each electrode. During processing of the substrate, the process rate, such as etch rate or deposition rate, can be controlled independently in regions of the substrate because the process rate is a function of the frequency and duty cycle of the pulsed DC voltage. The processing uniformity of the process performed on the substrate is improved.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: July 14, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Thai Cheng Chua, Philip Allan Kraus, Travis Lee Koh, Christian Amormino, Jaeyong Cho
  • Patent number: 10249479
    Abstract: Embodiments described herein generally relate to plasma process apparatus. In one embodiment, the plasma process apparatus includes a plasma source assembly. The plasma source assembly may include a first coil, a second coil surrounding the first coil, and a magnetic device disposed outside the first and inside the second coil. The magnet enables additional tuning which improves uniformity control of the processes on the substrate.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 2, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Joseph F. Aubuchon, Tza-Jing Gung, Travis Lee Koh, Nattaworn Boss Nunta, Sheng-Chin Kung, Steven Lane, Kartik Ramaswamy, Yang Yang
  • Publication number: 20190090338
    Abstract: Embodiments described herein generally relate to plasma assisted or plasma enhanced processing chambers. More specifically, embodiments herein relate to electrostatic chucking (ESC) substrate supports configured to provide pulsed DC voltage, and methods of applying a pulsed DC voltage, to a substrate during plasma assisted or plasma enhanced semiconductor manufacturing processes.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 21, 2019
    Inventors: Travis Lee KOH, Haitao WANG, Philip Allan KRAUS, Vijay D. PARKHE, Daniel DISTASO, Christopher A. ROWLAND, Mark MARKOVSKY, Robert CASANOVA
  • Publication number: 20190088521
    Abstract: The present disclosure generally relates to plasma assisted or plasma enhanced processing chambers. More specifically, embodiments herein relate to electrostatic chucking (ESC) substrate supports configured to provide independent pulses of DC voltage through a switching system to electrodes disposed through the ESC substrate support, or to electrodes disposed on a surface of the ESC, or to electrodes embedded in the ESC substrate support. The switching system can independently alter the frequency and duty cycle of the pulsed DC voltage that is coupled to each electrode. During processing of the substrate, the process rate, such as etch rate or deposition rate, can be controlled independently in regions of the substrate because the process rate is a function of the frequency and duty cycle of the pulsed DC voltage. The processing uniformity of the process performed on the substrate is improved.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 21, 2019
    Inventors: Thai Cheng CHUA, Philip Allan KRAUS, Travis Lee KOH, Christian AMORMINO, Jaeyong CHO
  • Publication number: 20190088518
    Abstract: Embodiments described herein generally relate to plasma assisted or plasma enhanced processing chambers. More specifically, embodiments herein relate to electrostatic chucking (ESC) substrate supports configured to provide pulsed DC voltage, and methods of applying pulsed DC voltage, to a substrate during plasma assisted or plasma enhanced semiconductor manufacturing processes.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 21, 2019
    Inventors: Travis Lee KOH, Philip Allan KRAUS, Wonseok LEE
  • Publication number: 20160225590
    Abstract: Embodiments described herein generally relate to plasma process apparatus. In one embodiment, the plasma process apparatus includes a plasma source assembly. The plasma source assembly may include a first coil, a second coil surrounding the first coil, and a magnetic device disposed outside the first and inside the second coil. The magnet enables additional tuning which improves uniformity control of the processes on the substrate.
    Type: Application
    Filed: December 31, 2015
    Publication date: August 4, 2016
    Inventors: Joseph F. Aubuchon, Tza-Jing Gung, Travis Lee Koh, Nattaworn Nuntaworanuch, Sheng-Chin Kung, Steven Lane, Kartik Ramaswamy, Yang Yang