Patents by Inventor Lee Chen

Lee Chen 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: 20180226255
    Abstract: A processing system is disclosed, having a power transmission element with an interior cavity that propagates electromagnetic energy proximate to a continuous slit in the interior cavity. The continuous slit forms an opening between the interior cavity and a substrate processing chamber. The electromagnetic energy may generate an alternating charge in the continuous slit that enables the generation of an electric field that may propagate into the processing chamber. The electromagnetic energy may be conditioned prior to entering the interior cavity to improve uniformity or stability of the electric field. The conditioning may include, but is not limited to, phase angle, field angle, and number of feeds into the interior cavity.
    Type: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Merritt Funk, Jianping Zhao, Lee Chen
  • Publication number: 20180212835
    Abstract: A method for web service load balancing may commence with receiving, from a local DNS server, a request for a web service. The local DNS server may be coupled to a web client requesting the web service. The request may include local DNS server information. The method may continue with determining a geographic location of the local DNS server based on the local DNS server information. The method may further include selecting a web server from a plurality of web servers based on the web service. The method may continue with determining a geographic location of the web server and determining that the geographic location of the local DNS server matches the geographic location of the web server. The method may further include selecting the web server based on the match. The method may continue with sending a response to the local DNS server.
    Type: Application
    Filed: March 22, 2018
    Publication date: July 26, 2018
    Inventors: Lee Chen, John Chiong
  • Publication number: 20180213031
    Abstract: Provided are methods and systems for balancing servers based on a server load status. A method for balancing servers based on a server load status may commence with receiving, from a server of a plurality of servers, a service response to a service request. The service response may include a computing load of the server. The method may continue with receiving a next service request from a host. The method may further include determining, based on the computing load of the server, whether the server is available to process the next service request. The method may include selectively sending the next service request to the server based on the determination that the server is available to process the next service request.
    Type: Application
    Filed: March 27, 2018
    Publication date: July 26, 2018
    Inventors: Lalgudi Narayanan Kannan, Ronald Wai Lun Szeto, Lee Chen, Feilong Xu, Rajkumar Jalan
  • Publication number: 20180191688
    Abstract: Systems, methods, and non-transitory computer-readable media can receive a password from a user. A first password hash is generated based on the password and a first salt. A second password hash is generated based on the first password hash and a second salt. The first salt, the second salt, and the second password hash are transmitted to a third party.
    Type: Application
    Filed: January 4, 2017
    Publication date: July 5, 2018
    Inventor: Evan Lee Chen
  • Patent number: 10002744
    Abstract: This disclosure relates to a plasma processing system for controlling plasma density near the edge or perimeter of a substrate that is being processed. The plasma processing system may include a plasma chamber that can receive and process the substrate using plasma for etching the substrate, doping the substrate, or depositing a film on the substrate. This disclosure relates to a plasma processing system that may include a power electrode that may be opposite a bias electrode and a focus ring electrode that surrounds the substrate. In one embodiment, the power electrode may be coupled to a direct current (DC) source. Power applied to the bias electrode may be used to draw ions to the substrate. The plasma density may be made more uniform by applying a focus ring voltage to the focus ring that is disposed around the substrate and/or the bias electrode.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 19, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Lee Chen, Peter L. G. Ventzek, Barton G. Lane
  • Patent number: 9978568
    Abstract: A processing system is disclosed, having an electron beam source chamber that excites plasma to generate an electron beam, and an ion beam source chamber that houses a substrate and also excites plasma to generate an ion beam. The processing system also includes a dielectric injector coupling the electron beam source chamber to the ion beam source chamber that simultaneously injects the electron beam and the ion beam and propels the electron beam and the ion beam in opposite directions. The voltage potential gradient between the electron beam source chamber and the ion beam source chamber generates an energy field that is sufficient to maintain the electron beam and ion beam as a plasma treats the substrate so that radio frequency (RF) power initially applied to the processing system to generate the electron beam can be terminated thus improving the power efficiency of the processing system.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 22, 2018
    Inventors: Zhiying Chen, Lee Chen, Merritt Funk
  • Patent number: 9966239
    Abstract: This disclosure relates to a plasma processing system for controlling plasma density across a substrate and maintaining a tight ion energy distribution within the plasma. In one embodiment, this may include using a dual plasma chamber system including a non-ambipolar plasma chamber and a DC plasma chamber adjacent to the non-ambipolar system. The DC plasma chamber provide power to generate the plasma by rotating the incoming power between four inputs from a VHF power source. In one instance, the power to each of the four inputs are at least 90 degrees out of phase from each other.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: May 8, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Lee Chen, Zhiying Chen
  • Patent number: 9961135
    Abstract: A method, system, and computer program product for balancing servers based on server load status, include: receiving from a server a service response to a service request, the service response including a result from a processing of the service request and a server status indicating a computing load status of the server; obtaining the server status from the service response; receiving a next service request from a host, the next service request comprising a Uniform Resource Locator (URL); determining that the server is configured to process the URL; determining whether the server status indicates that the server is available to process the next service request; and in response to determining that the server status indicates that the server is available to process the next service request, sending the next service request to the server.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: May 1, 2018
    Assignee: A10 NETWORKS, INC.
    Inventors: Lalgudi Narayanan Kannan, Ronald Wai Lun Szeto, Lee Chen, Feilong Xu, Rajkumar Jalan
  • Patent number: 9960967
    Abstract: A method and system to determine a web server based on geo-location information is disclosed. The system includes: a local DNS server coupled to a web client; a plurality of web servers; and a global load balancer coupled to the local DNS server. The global load balancer: receives a request for a web service sent by the web client, the request comprising local DNS server information; determines a geographic location for the local DNS server based on the local DNS server information; determines a web server from the plurality of web servers based on the requested web service; determines a geographic location for the determined web server; determines that the geographic location for the local DNS server matches the geographic location for the determined web server; selects the determined web server; and sends a response comprising information on the selected web server to the local DNS server.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: May 1, 2018
    Assignee: A10 NETWORKS, INC.
    Inventors: Lee Chen, John Chiong
  • Patent number: 9954899
    Abstract: Embodiments of the present technology relate to a method for applying a security policy to an application session, comprising: determining, by a security gateway, a first user identity and a second user identity from a data packet for an application session; obtaining, by the security gateway, a security policy for the application session; and applying the security policy to the application session by the security gateway. The user identity may be a network user identity or an application user identity recognized from packets of the application session. The security policy may comprise a network traffic policy mapped and/or a document access policy mapped to the user identity, where the network traffic policy is applied to the application session. The security gateway may further generate a security report concerning the application of the security policy to the application session.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: April 24, 2018
    Assignee: A10 NETWORKS, INC.
    Inventors: Lee Chen, Dennis Oshiba, John Chiong
  • Patent number: 9954868
    Abstract: The system includes a host, a network including a security gateway, and a public application. Established are an access session between the network and the host and an application session between the public application and the network. An application session record is created for the application session, and includes the user's public user identity used to access the public application, the user's private user identity used to access the network, a host identity, and an application session time. To determine the private user identity for the application session, the security gateway sends a query with the host identity and the application session time. These are compared with the host identity and access session time in an access session record, if they match, then the private user identity in the access session record is returned, and it is stored as the private user identity in the application session record.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 24, 2018
    Assignee: A10 NETWORKS, INC.
    Inventors: Xin Wang, Lee Chen, John Chiong
  • Patent number: 9947515
    Abstract: A processing system is disclosed, having a power transmission element with an interior cavity that propagates electromagnetic energy proximate to a continuous slit in the interior cavity. The continuous slit forms an opening between the interior cavity and a substrate processing chamber. The electromagnetic energy may generate an alternating charge in the continuous slit that enables the generation of an electric field that may propagate into the processing chamber. The electric field may interact with process gas in the processing chamber to generate plasma for treating the substrate. The interior cavity may be isolated from the process chamber by a dielectric component that covers the continuous slit. The power transmission element may be used to control plasma density within the process chamber, either by itself or in combination with other plasma sources.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 17, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Merritt Funk, Jianping Zhao, Lee Chen, Toshihiko Iwao, Toshihisa Nozawa, Zhiying Chen, Peter Ventzek
  • Patent number: 9941126
    Abstract: A processing system is disclosed, having a power transmission element with an interior cavity that propagates electromagnetic energy proximate to a continuous slit in the interior cavity. The continuous slit forms an opening between the interior cavity and a substrate processing chamber. The electromagnetic energy may generate an alternating charge in the continuous slit that enables the generation of an electric field that may propagate into the processing chamber. The electromagnetic energy may be conditioned prior to entering the interior cavity to improve uniformity or stability of the electric field. The conditioning may include, but is not limited to, phase angle, field angle, and number of feeds into the interior cavity.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: April 10, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Merritt Funk, Jianping Zhao, Lee Chen
  • Patent number: 9934974
    Abstract: A processing system is disclosed, having a power transmission element with an interior cavity that propagates electromagnetic energy proximate to a continuous slit in the interior cavity. The continuous slit forms an opening between the interior cavity and a substrate processing chamber. The electromagnetic energy may generate an alternating charge in the continuous slit that enables the generation of an electric field that may propagate into the processing chamber. The electromagnetic energy may be conditioned prior to entering the interior cavity to improve uniformity or stability of the electric field. The conditioning may include, but is not limited to, phase angle, field angle, and number of feeds into the interior cavity.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: April 3, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Jianping Zhao, Merritt Funk, Lee Chen
  • Publication number: 20180042889
    Abstract: A method for treating tau-associated disease by administering a pharmaceutical composition comprising a tetrahydropyranol derivative to a subject in need is disclosed. Particularly, a method for treating Alzheimer's disease by administering a pharmaceutical composition comprising a tetrahydropyranol derivative to a subject in need is disclosed. The tetrahydropyranol derivatives have demonstrated their abilities for reducing tau aggregation.
    Type: Application
    Filed: February 16, 2017
    Publication date: February 15, 2018
    Inventors: Guey-Jen LEE-CHEN, Kwun-Min CHEN
  • Publication number: 20180042864
    Abstract: The present invention provides a use of a compound to prepare a pharmaceutical composition for treating abnormal ?-amyloid aggregation mediated diseases. The compound is represented by the following formula (I): wherein A, B, R1, R2, R3, R4, R5 and R6 are defined in the specification.
    Type: Application
    Filed: July 21, 2017
    Publication date: February 15, 2018
    Inventors: Guey-Jen LEE-CHEN, Wenwei LIN
  • Patent number: 9852893
    Abstract: A method and apparatus is provided for obtaining a low average electron energy flux onto a substrate in a processing chamber. A processing chamber includes a substrate support therein for chemical processing. An energy source induced plasma, and ion propelling means, directs energetic plasma electrons toward the substrate support. A dipole ring magnet field is applied perpendicular to the direction of ion travel, to effectively prevent electrons above an acceptable maximum energy level from reaching the substrate holder. Rotation of the dipole magnetic field reduces electron non-uniformities.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: December 26, 2017
    Assignees: Tokyo Electron Limited, University of Houston System
    Inventors: Lee Chen, Demetre J. Economou, Jianping Zhao, Merritt Funk
  • Patent number: 9795600
    Abstract: A method for treating abnormal ?-amyloid mediated diseases is disclosed, comprising administering a pharmaceutical composition to a subject in need, wherein the pharmaceutical composition comprises an indolylquinoline derivative represented by the following formula 1:
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: October 24, 2017
    Assignee: NATIONAL TAIWAN NORMAL UNIVERSITY
    Inventors: Guey-Jen Lee-Chen, Hsiu-Mei Hsieh, Ching-Fa Yao
  • Patent number: 9799494
    Abstract: A processing method and system are provided for processing a substrate with a plasma in the presence of an electro-negative gas. A processing gas is injected into a processing chamber. The gas includes a high electron affinity gas species. A surface is provided in the plasma chamber onto which the gas species has a tendency to chemisorb. The gas species is exposed to the surface, chemisorbed onto it, and the surface is exposed to energy that causes negative ions of the chemisorbed gas species, that interact in the plasma to release secondary electrons. A neutralizer grid may be provided to separate from the chamber a second chamber in which forms a low energy secondary plasma for processing the substrate that is dense in electrons and contains high energy neutrals of the gas species and high energy positive ions of processing gas. Pulsed energy may be used to excite plasma or bias the substrate. A hollow cathode source is also provided.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: October 24, 2017
    Assignee: Tokyo Electron Limited
    Inventors: Lee Chen, Merritt Funk
  • Patent number: 9793095
    Abstract: A processing system is disclosed, having a power transmission element with an interior cavity that propagates electromagnetic energy proximate to a continuous slit in the interior cavity. The continuous slit forms an opening between the interior cavity and a substrate processing chamber. The electromagnetic energy may generate an alternating charge in the continuous slit that enables the generation of an electric field that may propagate into the processing chamber. The electric field may interact with process gas in the processing chamber to generate plasma for treating the substrate. The interior cavity may be isolated from the process chamber by a dielectric component that covers the continuous slit. The power transmission element may be used to control plasma density within the process chamber, either by itself or in combination with other plasma sources.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 17, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Merritt Funk, Jianping Zhao, Lee Chen, Toshihiko Iwao, Toshihisa Nozawa, Zhiying Chen, Peter Ventzek