Patents by Inventor Xiao Tian Zhang

Xiao Tian Zhang 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: 20240134852
    Abstract: An example operation may include one or more of storing an index that comprises identifiers of role-based access privileges for a plurality of users with respect to a database, receiving a database query associated with a user from a software program, identifying data records within the database that the user has permission to access based on database accessibility rights of the user stored within the index, prior to execution of the database query, loading the identified data records into the memory and filtering out other data records from the database which the user does not have permission to access, and executing the database query on the identified data records loaded from the database and returning query results from the execution to the software program.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 25, 2024
    Inventors: Jia Tian Zhong, Peng Hui Jiang, Ming Lei Zhang, Ting Ting Zhan, Le Chang, Zhen Liu, Xiao Yan Tian
  • Publication number: 20150102425
    Abstract: A power device package for containing, protecting and providing electrical contacts for a power transistor includes a top and bottom lead frames for directly no-bump attaching to the power transistor. The power transistor is attached to the bottom lead frame as a flip-chip with a source contact and a gate contact directly no-bumping attaching to the bottom lead frame. The power transistor has a bottom drain contact attaching to the top lead frame. The top lead frame further includes an extension for providing a bottom drain electrode substantially on a same side with the bottom lead frame. In a preferred embodiment, the power device package further includes a joint layer between device metal of source, gate or drain and top or bottom lead frame, through applying ultrasonic energy.
    Type: Application
    Filed: October 12, 2013
    Publication date: April 16, 2015
    Inventors: Ming Sun, Kai Liu, Xiao Tian Zhang, Yueh Se Ho, Leeshawn Luo
  • Patent number: 8564049
    Abstract: This invention discloses a power device package for containing, protecting and providing electrical contacts for a power transistor. The power device package includes a top and bottom lead frames for directly no-bump attaching to the power transistor. The power transistor is attached to the bottom lead frame as a flip-chip with a source contact and a gate contact directly no-bumping attaching to the bottom lead frame. The power transistor has a bottom drain contact attaching to the top lead frame. The top lead frame further includes an extension for providing a bottom drain electrode substantially on a same side with the bottom lead frame. In a preferred embodiment, the power device package further includes a joint layer between device metal of source, gate or drain and top or bottom lead frame, through applying ultrasonic energy.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: October 22, 2013
    Assignee: Alpha & Omega Semiconductor Incorporated
    Inventors: Ming Sun, Kai Liu, Xiao Tian Zhang, Yueh Se Ho, Leeshawn Luo
  • Patent number: 7897438
    Abstract: A semiconductor package and method for making a semiconductor package are disclosed. The semiconductor package has a top surface and a mounting surface and includes a die, a conducting connecting material, a plating material and an insulating material. The die has a processed surface facing towards the mounting surface of the semiconductor package. Exposed metal connections are at the processed surface of the die. The conducting connecting material is disposed on the exposed metal connections. The plating material is in contact with the conducting connecting material. The insulating material is formed around the conducting connecting material, and the plating material extends to the exterior of the insulating material.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: March 1, 2011
    Assignee: Alpha and Omega Semiconductor Incorporated
    Inventors: Leeshawn Luo, Kai Liu, Ming Sun, Xiao Tian Zhang
  • Publication number: 20080233679
    Abstract: A semiconductor package and method for making a semiconductor package are disclosed. The semiconductor package has a top surface and a mounting surface and includes a die, a conducting connecting material, a plating material and an insulating material. The die has a processed surface facing towards the mounting surface of the semiconductor package. Exposed metal connections are at the processed surface of the die. The conducting connecting material is disposed on the exposed metal connections. The plating material is in contact with the conducting connecting material. The insulating material is formed around the conducting connecting material, and the plating material extends to the exterior of the insulating material.
    Type: Application
    Filed: May 22, 2008
    Publication date: September 25, 2008
    Inventors: Leeshawn Luo, Kai Liu, Ming Sun, Xiao Tian Zhang
  • Publication number: 20080211070
    Abstract: This invention discloses a power device package for containing, protecting and providing electrical contacts for a power transistor. The power device package includes a top and bottom lead frames for directly no-bump attaching to the power transistor. The power transistor is attached to the bottom lead frame as a flip-chip with a source contact and a gate contact directly no-bumping attaching to the bottom lead frame. The power transistor has a bottom drain contact attaching to the top lead frame. The top lead frame further includes an extension for providing a bottom drain electrode substantially on a same side with the bottom lead frame. In a preferred embodiment, the power device package further includes a joint layer between device metal of source, gate or drain and top or bottom lead frame, through applying ultrasonic energy.
    Type: Application
    Filed: March 31, 2008
    Publication date: September 4, 2008
    Inventors: Ming Sun, Kai Liu, Xiao Tian Zhang, Yueh Se Ho, Leeshawn Luo
  • Patent number: 7394151
    Abstract: A semiconductor package and method for making a semiconductor package are disclosed. The semiconductor package has a top surface and a mounting surface and includes a die, a conducting connecting material, a plating material and an insulating material. The die has a processed surface facing towards the mounting surface of the semiconductor package. Exposed metal connections are at the processed surface of the die. The conducting connecting material is disposed on the exposed metal connections. The plating material is in contact with the conducting connecting material. The insulating material is formed around the conducting connecting material, and the plating material extends to the exterior of the insulating material.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: July 1, 2008
    Assignee: Alpha & Omega Semiconductor Limited
    Inventors: Leeshawn Luo, Kai Liu, Ming Sun, Xiao Tian Zhang
  • Patent number: 7208818
    Abstract: A semiconductor package including a relatively thick lead frame having a plurality of leads and a first lead frame pad, the first lead frame pad including a die coupled thereto, bonding wires connecting the die to the plurality of leads, the bonding wires being aluminum, and a resin body encapsulating the die, bonding wires and at least a portion of the lead frame.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: April 24, 2007
    Assignee: Alpha and Omega Semiconductor Ltd.
    Inventors: Leeshawn Luo, Anup Bhalla, Sik K. Lui, Yueh-Se Ho, Mike F. Chang, Xiao Tian Zhang