Patents by Inventor Kelvin Chan

Kelvin Chan 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: 12368024
    Abstract: Methods and apparatus for processing a substrate are provided herein. For example, a gas supply configured for use with a processing chamber includes an ampoule that stores a precursor and comprises an input to receive a carrier gas and an output to provide a mixture of the carrier gas and the precursor to the processing chamber and a sensor assembly comprising a detector and an infrared source operably connected to an outside of an enclosure, through which the mixture flows, and a gas measurement volume disposed within the enclosure and along an inner wall thereof so that a concentration of the precursor in the mixture can be measured by the detector and transmitted to a controller.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: July 22, 2025
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abdullah Zafar, William John Durand, Xinyuan Chong, Kenric Choi, Weize Hu, Kelvin Chan, Amir Bayati, Michelle Sanpedro, Philip A. Kraus, Adolph Miller Allen
  • Publication number: 20250224678
    Abstract: Some embodiments include a method of depositing a photoresist onto a substrate in a processing chamber. In an embodiment, the method comprises flowing an oxidant into the processing chamber through a first path in a showerhead, and flowing an organometallic into the processing chamber through a second path in the showerhead. In an embodiment, the first path is isolated from the second path so that the oxidant and the organometallic do not mix within the showerhead. In an embodiment, the method further comprises that the oxidant and the organometallic react in the processing chamber to deposit the photoresist on the substrate.
    Type: Application
    Filed: March 24, 2025
    Publication date: July 10, 2025
    Inventors: FARZAD HOUSHMAND, WAYNE FRENCH, ANANTHA SUBRAMANI, KELVIN CHAN, LAKMAL CHARIDU KALUTARAGE, MARK JOSEPH SALY
  • Patent number: 12325910
    Abstract: Methods for depositing film comprising cyclical exposure of a substrate surface to a precursor and a degas environment to remove gas evolved from the film. Some embodiments further comprise the incorporation poisoning the top of a feature to inhibit film growth at the top of the feature. Some embodiments further comprising etching a portion of the film deposited at the top of a feature between cycles to increase gap-fill uniformity.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: June 10, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Yihong Chen, Rui Cheng, Pramit Manna, Kelvin Chan, Karthik Janakiraman, Abhijit Basu Mallick, Srinivas Gandikota
  • Patent number: 12282256
    Abstract: Some embodiments include a method of depositing a photoresist onto a substrate in a processing chamber. In an embodiment, the method comprises flowing an oxidant into the processing chamber through a first path in a showerhead, and flowing an organometallic into the processing chamber through a second path in the showerhead. In an embodiment, the first path is isolated from the second path so that the oxidant and the organometallic do not mix within the showerhead. In an embodiment, the method further comprises that the oxidant and the organometallic react in the processing chamber to deposit the photoresist on the substrate.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: April 22, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Farzad Houshmand, Wayne French, Anantha Subramani, Kelvin Chan, Lakmal Charidu Kalutarage, Mark Joseph Saly
  • Publication number: 20250118536
    Abstract: Semiconductor processing systems and methods for increased etch selectivity and rate are provided. Methods include etching a target material of a semiconductor substrate by flowing one or more plasma precursors through a microwave applicator into a remote plasma region of a semiconductor processing chamber. Generating a remote plasma within the remote plasma region at a microwave frequency, where the generated remote plasma comprises a density of greater than 1×1010 per cm3, an ion energy of less than or about 50 eV, or a combination thereof. Flowing the plasma effluents into a processing region of the semiconductor processing chamber. The microwave applicator includes a resonator body and a plate, where the resonator body is formed from or coated with a first dielectric material and the plate is formed from or coated with a second dielectric material.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 10, 2025
    Applicant: Applied Materials, Inc.
    Inventors: Yi-Hsuan Hsiao, Dongqing Yang, Kelvin Chan, Philip A. Kraus, Thai Cheng Chua, Ping-Hwa Hsieh, Nitin K. Ingle
  • Patent number: 12228534
    Abstract: Embodiments disclosed herein include gas concentration sensors, and methods of using such gas concentration sensors. In an embodiment, a gas concentration sensor comprises a first electrode. In an embodiment the first electrode comprises first fingers. In an embodiment, the gas concentration sensor further comprises a second electrode. In an embodiment, the second electrode comprises second fingers that are interdigitated with the first fingers.
    Type: Grant
    Filed: March 13, 2024
    Date of Patent: February 18, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Xiaopu Li, Kallol Bera, Yaoling Pan, Kelvin Chan, Amir Bayati, Philip Allan Kraus, Kenric T. Choi, William John Durand
  • Patent number: 12192104
    Abstract: Techniques for identifying network congestion and adapting network performance to relieve the network congestion are described. As described, a network element such as a switch reports network congestion indicators such as link level control frames to a network controller. The network controller uses the network congestion indicators reported from the network elements to identify congestion points, data traffic, and data flows experiencing congestion at a network level. The network controller then determines optimized control parameters for the network in order to reduce or alleviate the congestion at the congestion points.
    Type: Grant
    Filed: September 19, 2023
    Date of Patent: January 7, 2025
    Assignee: Cisco Technology, Inc.
    Inventors: Dennis Khoa Dang Nguyen, Keerthi Manjunathan Swarnamanjunathan, Laura J. Sharpless, Kelvin Chan, Ganga S. Devadas
  • Publication number: 20240412959
    Abstract: Embodiments disclosed herein include a module, comprising: a substrate, wherein the substrate comprises a dielectric material, and a microstrip resonator on the substrate. In an embodiment, a microstrip transmission line is on the substrate adjacent to the microstrip resonator, and the microstrip resonator is spaced from the microstrip transmission line by a gap. In an embodiment, a ground plane on a surface of the substrate is opposite from the microstrip resonator.
    Type: Application
    Filed: June 9, 2023
    Publication date: December 12, 2024
    Inventors: David PETERSON, David COUMOU, Chuang-Chia LIN, Kelvin CHAN, Farzad HOUSHMAND, Ping-Hwa HSIEH, Kristopher FORD
  • Publication number: 20240379331
    Abstract: Embodiments disclosed herein include an applicator for microwave plasma generation. In an embodiment, the applicator comprises a resonator body with a hole into an axial center of the resonator body, where the resonator body comprises a first dielectric material. In an embodiment, the applicator further comprises a pin inserted into the hole, where the pin is an electrically conductive material. In an embodiment, the applicator further comprises a plate under the resonator body, where the plate comprises a second dielectric material that is different than the first dielectric material.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 14, 2024
    Inventors: Thai Cheng Chua, Kelvin Chan, Adam Fischbach, Farzad Houshmand, Christian Valencia, Philip Allan Kraus
  • Patent number: 12131948
    Abstract: Embodiments herein include void-free material depositions on a substrate (e.g., in a void-free trench-filled (VFTF) component) obtained using directional etching to remove predetermined portions of a seed layer covering the substrate. In several embodiments, directional etching followed by selective deposition can enable fill material (e.g., metal) patterning in tight spaces without any voids or seams. Void-free material depositions may be used in a variety of semiconductor devices, such as transistors, dual work function stacks, dynamic random-access memory (DRAM), non-volatile memory, and the like.
    Type: Grant
    Filed: July 21, 2023
    Date of Patent: October 29, 2024
    Assignee: Applied Materials, Inc.
    Inventors: M. Arif Zeeshan, Kelvin Chan, Shantanu Kallakuri, Sony Varghese, John Hautala
  • Patent number: 12094707
    Abstract: Embodiments include a method of processing a substrate. In an embodiment, the method comprises flowing one or more source gasses into a processing chamber, and inducing a plasma from the source gases with a plasma source that is operated in a first mode. In an embodiment, the method may further comprise biasing the substrate with a DC power source that is operated in a second mode. In an embodiment, the method may further comprise depositing a film on the substrate.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: September 17, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Kelvin Chan, Travis Koh, Simon Huang, Philip Allan Kraus
  • Publication number: 20240274407
    Abstract: Embodiments herein are generally directed to electronic device manufacturing and, more particularly, to systems and methods for forming substantially void-free and seam-free tungsten features in a semiconductor device manufacturing scheme. In one embodiment, a substrate processing system features a processing chamber and a gas delivery system fluidly coupled to the processing chamber. The gas delivery system includes a first radical generator for use in a differential inhibition treatment process where the differential inhibition treatment process includes exposing a substrate to the effluent of a treatment plasma from a halogen free nitrogen-containing gas and a halogen-containing gas.
    Type: Application
    Filed: February 13, 2023
    Publication date: August 15, 2024
    Inventors: Peiqi WANG, Kelvin CHAN, Kai WU, Mingrui ZHAO, David PETERSON, Ping-Hwa HSIEH
  • Publication number: 20240274414
    Abstract: Embodiments disclosed herein include a method of cleaning a chamber. In an embodiment, the method comprises flowing a first processing gas into the chamber, where the first processing gas reacts with a metal-organic compound in the chamber to form a first volatile compound. In an embodiment, the method further comprises flowing a second processing gas into the chamber, where the second processing gas reacts with a pure metal of the metal-organic compound to form a second volatile compound. In an embodiment, the method further comprises removing the first volatile compound and the second volatile compound from the chamber.
    Type: Application
    Filed: January 4, 2024
    Publication date: August 15, 2024
    Inventors: NEELA AYALASOMAYAJULA, KELVIN CHAN, VENUGOPAL VELLANKI, NIRANJANA BALESAN, ANDREW CONSTANT, NASREEN CHOPRA
  • Publication number: 20240265199
    Abstract: A method is disclosed for presenting media content on a first client computer of client computers that are participating in a collaboration session. The method includes receiving, at the first client computer, the media content from a server, presenting the media content at the first client computer, receiving, at the first client computer, a selection of an option that enables annotations on the media content for real-time display during the collaboration session, sending the option to the server to allow annotations on the media content to be provided by two or more of the plurality of client computers, receiving, at the first client computer, a first annotation provided by a user of a second client computer and a second annotation provided by a user of a third client computer, and presenting the first and second annotations on the media content at the first client computer, the first and second annotations being presented with identifiers associated with the second and third client computers respectively.
    Type: Application
    Filed: April 15, 2024
    Publication date: August 8, 2024
    Inventors: Kelvin Chan, Yiyang Joy Ding
  • Publication number: 20240235730
    Abstract: Disclosed are systems, methods, and non-transitory computer-readable storage media for monitoring application health via correctable errors. The method includes identifying, by a network device, a network packet associated with an application and detecting an error associated with the network packet. In response to detecting the error, the network device increments a counter associated with the application, determines an application score based at least in part on the counter, and telemeters the application score to a controller. The controller can generate a graphical interface based at least in part on the application score and a timestamp associated with the application score, wherein the graphical interface depicts a trend in correctable errors experienced by the application over a network.
    Type: Application
    Filed: March 25, 2024
    Publication date: July 11, 2024
    Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
  • Publication number: 20240219337
    Abstract: Embodiments disclosed herein include gas concentration sensors, and methods of using such gas concentration sensors. In an embodiment, a gas concentration sensor comprises a first electrode. In an embodiment the first electrode comprises first fingers. In an embodiment, the gas concentration sensor further comprises a second electrode. In an embodiment, the second electrode comprises second fingers that are interdigitated with the first fingers.
    Type: Application
    Filed: March 13, 2024
    Publication date: July 4, 2024
    Inventors: XIAOPU LI, KALLOL BERA, YAOLING PAN, KELVIN CHAN, AMIR BAYATI, PHILIP ALLAN KRAUS, KENRIC T. CHOI, WILLIAM JOHN DURAND
  • Patent number: 12012652
    Abstract: Embodiments include a processing tool for processing substrates in a low processing pressure and a high processing pressure. In an embodiment, the processing tool comprises a chamber body and a pedestal in the chamber body. In an embodiment, the pedestal is displaceable, and the pedestal has a first surface and a second surface opposite the first surface. In an embodiment, the processing tool further comprises a first gas port for supplying gasses into the chamber body and a first exhaust positioned above the first surface of the pedestal. In an embodiment, the embodiment further comprises a second gas port for supplying gasses into the chamber body and a second exhaust positioned below the second surface of the pedestal.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 18, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Kelvin Chan, Yang Guo, Ashish Goel, Anantha Subramani, Philip Allan Kraus
  • Patent number: 11968038
    Abstract: Disclosed are systems, methods, and non-transitory computer-readable storage media for monitoring application health via correctable errors. The method includes identifying, by a network device, a network packet associated with an application and detecting an error associated with the network packet. In response to detecting the error, the network device increments a counter associated with the application, determines an application score based at least in part on the counter, and telemeters the application score to a controller. The controller can generate a graphical interface based at least in part on the application score and a timestamp associated with the application score, wherein the graphical interface depicts a trend in correctable errors experienced by the application over a network.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: April 23, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Keerthi Manjunathan Swarnamanjunathan, Chih-Tsung Huang, Kelvin Chan, Wei-Jen Huang
  • Publication number: 20240128061
    Abstract: Embodiments disclosed herein include a semiconductor processing tool. In an embodiment, the semiconductor processing tool comprises a pedestal, an annular separator over the pedestal to define a first domain within the annular separator and a second domain outside of the annular separator, a first gas inlet within the annular separator, and a second gas inlet outside of the annular separator.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 18, 2024
    Inventors: FARZAD HOUSHMAND, KELVIN CHAN, RUIYING HAO, WAYNE FRENCH
  • Patent number: 11960826
    Abstract: A method is disclosed for presenting media content on a first client computer of client computers that are participating in a collaboration session.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 16, 2024
    Assignee: Google LLC
    Inventors: Kelvin Chan, Yiyang Joy Ding