Patents by Inventor Lawrence Wong

Lawrence Wong 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: 9472379
    Abstract: Implementations described herein inject feedstock gases into multiple zones of an inductively coupled plasma processing reactor with minimal or no effect on process skew. In one embodiment, an integrated gas and coil assembly is provided that includes an upper surface and a lower surface, a first RF field applicator coil bounded at the upper surface and the lower surface, a second RF field applicator coil circumscribed by the first RF field applicator coil and bounded at the upper surface and the lower surface and an RF shield disposed between the first and second RF field generator wherein the RF shield extends from the lower surface and past the upper surface. The RF shield may have at least one gas channel disposed therethrough.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: October 18, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Steven Lane, Yang Yang, Kartik Ramaswamy, Lawrence Wong
  • Patent number: 9412563
    Abstract: An RF plasma source has a resonator with its shorted end joined to the processing chamber ceiling and inductively coupled to two arrays of radial toroidal channels in the ceiling, the resonator having two radial zones and the two arrays of toroidal channels lying in respective ones of the radial zones.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: August 9, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kartik Ramaswamy, Kenneth S. Collins, Shahid Rauf, Steven Lane, Yang Yang, Lawrence Wong
  • Publication number: 20160225466
    Abstract: An external magnetic filter to trap electrons surrounds a reactor chamber and has multiple magnets arranged in a circle, the magnetic orientation of each individual magnet being rotated relative to the orientation of the adjacent individual magnet by a difference angle that is a function of the arc subtended by the individual magnet.
    Type: Application
    Filed: August 21, 2015
    Publication date: August 4, 2016
    Inventors: Kartik Ramaswamy, Kenneth S. Collins, Steven Lane, Yang Yang, Lawrence Wong
  • Publication number: 20160116518
    Abstract: Methods and apparatus for measurement of a surface charge profile of an electrostatic chuck are provided herein. In some embodiments, an apparatus for measurement of a surface charge profile of an electrostatic chuck includes: an electrostatic charge sensor disposed on a substrate to obtain data indicative of an electrostatic charge on an electrostatic chuck; and a transmitter disposed on the substrate and having an input in communication with an output of the electrostatic charge sensor to transmit the data.
    Type: Application
    Filed: October 28, 2015
    Publication date: April 28, 2016
    Inventors: HAITAO WANG, LAWRENCE WONG, KARTIK RAMASWAMY, CHUNLEI ZHANG
  • Publication number: 20160048111
    Abstract: Plural sensors on an interior surface of a reactor chamber are linked by respective RF communication channels to a hub inside the reactor chamber, which in turn is linked to a process controller outside of the chamber.
    Type: Application
    Filed: August 15, 2014
    Publication date: February 18, 2016
    Inventors: Lawrence Wong, Kartik Ramaswamy, Yang Yang, Steven Lane, Richard Fovell
  • Publication number: 20160048766
    Abstract: A method and system for making financial or medical decisions. The method comprises training sets of models using classification training with sets of data derived from segregated data sources. Overall weighting of each model within the sets of models are determined for each of the sub-datasets. The sets of models, the overall weighting of each model and a number of examples provided from the data for each of the datasets are transmitted to a central server over a communication network, wherein the central server is configured to determine the relative weights of each of the sets of models in the overall ensemble model based on the number of examples, combine the sets of models, receive new application data, and predict at least one of outcome variables, an uncertainty factor for the variables, and drivers of the outcome variables based on the new application data.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 18, 2016
    Inventors: Andrew McMahon, Lawrence Wong, Erin Culek, Matthew Burriesci, Martin Lee, Bo Han
  • Publication number: 20160027616
    Abstract: Spatial distribution of RF power delivered to plasma in a processing chamber is controlled using an arrangement of primary and secondary inductors, wherein the current through the secondary inductors affects the spatial distribution of the plasma. The secondary inductors are configured to resonate at respectively different frequencies. A first secondary inductor is selectively excited to resonance, during a first time period within a duty cycle, by delivering power to a primary inductor at the resonant frequency of the first secondary inductor. A second secondary inductor is selectively excited to resonance, during a second time period within a duty cycle, by delivering power to a primary inductor at the resonant frequency of the second secondary inductor. The secondary inductors are isolated from one another and terminated such that substantially all current that passes through them and into the plasma results from mutual inductance with a primary inductor.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: KARTIK RAMASWAMY, YANG YANG, STEVEN LANE, LAWRENCE WONG, JOSEPH F. AUBUCHON, TRAVIS KOH
  • Publication number: 20150371824
    Abstract: Implementations described herein inject feedstock gases into multiple zones of an inductively coupled plasma processing reactor with minimal or no effect on process skew. In one embodiment, an integrated gas and coil assembly is provided that includes an upper surface and a lower surface, a first RF field applicator coil bounded at the upper surface and the lower surface, a second RF field applicator coil circumscribed by the first RF field applicator coil and bounded at the upper surface and the lower surface and an RF shield disposed between the first and second RF field generator wherein the RF shield extends from the lower surface and past the upper surface. The RF shield may have at least one gas channel disposed therethrough.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 24, 2015
    Inventors: Steven LANE, Yang YANG, Kartik RAMASWAMY, Lawrence WONG
  • Patent number: 9161428
    Abstract: Plasma distribution is controlled in a plasma reactor by controlling the phase differences between different RF coil antennas, in accordance with a desired or user-selected phase difference, by a phase-lock feedback control loop.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 13, 2015
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kenneth S. Collins, Satoru Kobayashi, Lawrence Wong, Jonathan Liu, Yang Yang, Kartik Ramaswamy, Shahid Rauf
  • Publication number: 20150193866
    Abstract: The disclosed embodiments include methods and systems for providing account status notifications. The disclosed embodiments include, for example, a device for providing account status notifications including a memory storing software instructions and one or more processors configured to execute the software instructions to perform operations. In one aspect, the operations may include receiving account status notification information for a first account associated with a user. The account status notification information may be generated based on one or more notification rules and account information associated with the first account. The operations may also include generating, based on the received account status notification information, a first account status indicator that provides a status of a first account parameter associated with the first account that is presented via a device component without a user request to receive the status of the first account parameter.
    Type: Application
    Filed: December 29, 2014
    Publication date: July 9, 2015
    Applicant: The Toronto-Dominion Bank
    Inventors: Lauren Van Heerden, Lawrence Wong, Tim Thompson, Mike Stephenson, Nigel Lall, Orin Del Vecchio, Gunalan Nadarajah
  • Publication number: 20150075716
    Abstract: An RF plasma source has a resonator with its shorted end joined to the processing chamber ceiling and inductively coupled to two arrays of radial toroidal channels in the ceiling, the resonator having two radial zones and the two arrays of toroidal channels lying in respective ones of the radial zones.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Kartik Ramaswamy, Kenneth S. Collins, Shahid Rauf, Steven Lane, Yang Yang, Lawrence Wong
  • Publication number: 20150075717
    Abstract: An RF plasma source has a resonator with its shorted end joined to the processing chamber ceiling and inductively coupled to an array of radial toroidal channels in the ceiling.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Kartik Ramaswamy, Kenneth S. Collins, Shahid Rauf, Steven Lane, Yang Yang, Lawrence Wong
  • Publication number: 20140330185
    Abstract: The present invention is generally directed to an orthopedic device for use with an orthopedic cast, which can alleviate the itching sensation that can develop when a patient wears a cast, among other advantages, such as cooling the skin below the cast, reducing the moisture in the region between the skin and the cast, as well as in some cases reducing the risk of infection. As discussed in more detail below, the orthopedic device can include a sleeve that can be mounted onto a body part, e.g., a broken limb, between the skin and a surgical cast. The sleeve is sufficiently flexible so as to substantially conform to the contour of the body part. The sleeve includes a plurality of internal channels for receiving a gas from an external source, e.g., a canister of pressurized gas, and for delivering at least a portion of the received gas via a plurality of openings onto the skin below the cast. The sleeve can include a two opposed layers between which the internal channels are formed.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 6, 2014
    Inventors: Mohammad Taslim, Benjamin Hall, Zubin Joy, Bhavik Raval, Justin Tufariello, Lawrence Wong, Melissa Davis
  • Patent number: 8734664
    Abstract: A method of controlling distribution of a plasma parameter in a plasma reactor having an RF-driven electrode and two (or more) counter electrodes opposite the RF driven electrode and facing different portions of the process zones. The method includes providing two (or more) variable reactances connected between respective ones of the counter electrodes and ground, and governing the variable reactances to change distribution of a plasma parameter such as plasma ion density or ion energy.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: May 27, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Yang Yang, Kartik Ramaswamy, Kenneth S. Collins, Steven Lane, Douglas A. Buchberger, Jr., Lawrence Wong, Nipun Misra
  • Publication number: 20140069584
    Abstract: A plasma reactor includes an RF-driven ceiling electrode overlying a process zone and two (or more) counter electrodes underlying the process zone and facing different portions of the process zones, two (or more) variable reactances connected between respective ones of the counter electrodes and ground, and a controller governing the variable reactances to control distribution of a plasma parameter such as plasma ion density or ion energy.
    Type: Application
    Filed: August 5, 2013
    Publication date: March 13, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Yang Yang, Kartik Ramaswamy, Kenneth S. Collins, Steven Lane, Douglas A. Buchberger, JR., Lawrence Wong, Nipun Misra
  • Publication number: 20140034239
    Abstract: A plasma reactor includes an RF-driven wafer support electrode underlying a process zone and two (or more) counter electrodes overlying the process zone and facing different portions of the process zones, two (or more) variable reactances connected between respective ones of the counter electrodes and ground, and a controller governing the variable reactances to control distribution of a plasma parameter such as plasma ion density or ion energy.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Yang Yang, Kartik Ramaswamy, Kenneth S. Collins, Steven Lane, Douglas A. Buchberger, JR., Lawrence Wong, Nipun Misra
  • Publication number: 20140034612
    Abstract: A method of controlling distribution of a plasma parameter in a plasma reactor having an RF-driven electrode and two (or more) counter electrodes opposite the RF driven electrode and facing different portions of the process zones. The method includes providing two (or more) variable reactances connected between respective ones of the counter electrodes and ground, and governing the variable reactances to change distribution of a plasma parameter such as plasma ion density or ion energy.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Yang Yang, Kartik Ramaswamy, Kenneth S. Collins, Steven Lane, Douglas A. Buchberger, JR., Lawrence Wong, Nipun Misra
  • Patent number: 8578879
    Abstract: Embodiments of impedance matching networks are provided herein. In some embodiments, an impedance matching network may include a coaxial resonator having an inner and an outer conductor. A tuning capacitor may be provided for variably controlling a resonance frequency of the coaxial resonator. The tuning capacitor may be formed by a first tuning electrode and a second tuning electrode and an intervening dielectric, wherein the first tuning electrode is formed by a portion of the inner conductor. A load capacitor may be provided for variably coupling energy from the inner conductor to a load. The load capacitor may be formed by the inner conductor, an adjustable load electrode, and an intervening dielectric.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 12, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Kenneth S. Collins, Lawrence Wong, Samer Banna, Andrew Nguyen
  • Publication number: 20130284369
    Abstract: Plasma distribution is controlled in a plasma reactor by controlling the phase difference between opposing RF electrodes, in accordance with a desired or user-selected phase difference, by a phase-lock feedback control loop.
    Type: Application
    Filed: October 1, 2012
    Publication date: October 31, 2013
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Satoru Kobayashi, Lawrence Wong, Jonathan Liu, Yang Yang, Kartik Ramaswamy, Shahid Rauf, Shane C. Nevil, Kallol Bera, Kenneth S. Collins
  • Publication number: 20130284370
    Abstract: Plasma distribution is controlled in a plasma reactor by controlling the phase differences between different RF coil antennas, in accordance with a desired or user-selected phase difference, by a phase-lock feedback control loop.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 31, 2013
    Inventors: Kenneth S. Collins, Satoru Kobayashi, Lawrence Wong, Jonathan Liu, Yang Yang, Kartik Ramaswamy, Shahid Rauf