Patents by Inventor Xun Xue

Xun Xue 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: 20250118638
    Abstract: A semiconductor package comprises a first device and a second device. The structure of the first semiconductor device is similar to that of the second semiconductor device. The first semiconductor device comprises a lead frame strip, a first plurality of field effect transistors (FETs), a first plurality of clips, a second plurality of FETs, a second plurality of clips, and a first molding encapsulation. A method is applied to fabricate a plurality of semiconductor packages. The method comprises the steps of providing a lead frame strip, attaching a first plurality of FETs, attaching a first plurality of clips, attaching a second plurality of FETs, attaching a second plurality of clips, and forming a molding encapsulation.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 10, 2025
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Madhur Bobde, Long-Ching Wang, Jian Yin, Lin Chen, Ziwei Yu, Xiaobin Wang, Zhiqiang Niu, Kuan-Hung Li
  • Publication number: 20250112132
    Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises a top plate, a plurality of drain pads, a plurality of slanted sections, a gate pad, and a plurality of source pads. The top plate of the lead frame comprises a thicker region and a thinner region. Each slanted section of the plurality of slanted sections connects a respective drain pad of the plurality of drain pads to the top plate. A respective side surface of each drain pad of the plurality of drain pads is exposed from a side surface of the molding encapsulation. A respective bottom surface of each drain pad of the plurality of drain pads is exposed from a bottom surface of the molding encapsulation. A top surface of the thicker region is exposed from a top surface of the molding encapsulation.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 3, 2025
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Zhiqiang Niu, Xiao Zhang, Long-Ching Wang, Guobing Shen, Yan Xun Xue
  • Patent number: 12261101
    Abstract: A semiconductor package includes a lead frame, a chip, and a molding encapsulation. The lead frame comprises a die paddle, a first plurality of leads, additional one or more leads, a second plurality of leads, a first tie bar, a second tie bar, a third tie bar, and a fourth tie bar. A respective end surface of each lead of the first plurality of leads, the additional one or more leads, and the second plurality of leads is plated with a metal. A respective end surface of the first tie bar, the second tie bar, the third tie bar, and the fourth tie bar is not plated with the metal. A method for fabricating a semiconductor package includes the steps of providing a lead frame array, mounting a chip, forming a molding encapsulation, applying a trimming process, applying a plating process, and applying a singulation process.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: March 25, 2025
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Madhur Bobde, Long-Ching Wang, Xiaoguang Zeng
  • Publication number: 20250096081
    Abstract: A semiconductor package comprising a lead frame, a low side field-effect transistor (FET), a high side FET, a metal clip, an interposer, an integrated circuit (IC) controller, and a molding encapsulation. A method, for fabricating a semiconductor package, comprises the steps of: providing a lead frame; attaching a low side FET and a high side FET; mounting a metal clip; attaching an interposer; mounting an IC controller, forming a molding encapsulation; and applying a singulation process.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 20, 2025
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Madhur Bobde, Yan Xun Xue, Long-Ching Wang, Jian Yin, Sitthipong Angkititrakul
  • Publication number: 20250069973
    Abstract: A chip scale semiconductor package comprises a silicon layer, a back side metal layer, and a plurality of front side pads. Each of the plurality of front side pads comprises a respective copper member and a respective solder member. A method comprises the steps of: providing a wafer; grinding the back side of the wafer forming a peripheral ring; applying a metallization process to a grinded surface; removing the peripheral ring; forming a front side seed layer; forming a front side photoresist layer; applying a photolithography process; applying a front side copper plating process; applying a front side solder plating process; stripping the front side photoresist layer; etching the front side seed layer; and applying a singulation process.
    Type: Application
    Filed: August 22, 2023
    Publication date: February 27, 2025
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Madhur Bobde, Long-Ching Wang, Zhiqiang Niu, Lin Lv
  • Publication number: 20240429140
    Abstract: A semiconductor package comprises two or more chips, a first molding layer, a second molding layer, a third molding layer, a fourth molding layer, a bottom redistribution layer (RDL), a middle RDL, and a top RDL. The two or more chips comprise a first chip and a second chip. The top RDL comprises a first copper plate and a second copper plate. A plurality of vias electrically connect the second copper plate to the second chip. A method comprises the steps of preparing two or more chips; forming a chip-level molding layer; forming a middle RDL; forming a lower-level molding layer; forming a bottom RDL; forming a lowest-level molding layer; forming a top RDL; and forming a top-level molding layer so as to fabricate a semiconductor package.
    Type: Application
    Filed: June 22, 2023
    Publication date: December 26, 2024
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Zhiqiang Niu, Rhys Philbrick, Long-Ching Wang, Chunya Wen, Yan Xun Xue
  • Patent number: 12175282
    Abstract: The disclosed systems and methods for intelligent heterogeneous computation directed to receiving monitoring data and a set of training data, wherein the monitoring data includes an occupancy rate of a preprocessed data queue and a utilization factor of accelerating devices, generating a resource computation job list in accordance with the monitoring data, forwarding jobs, in the resource computation job list to be executed on a central processing unit (CPU), to a CPU worker queue, forwarding control messages to the CPU worker queue, wherein the control messages are associated with jobs in the resource computation job list to be executed on the accelerating devices, and executing, by the accelerating devices, jobs in the resource computation job list to be executed on the accelerating devices.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: December 24, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anthony Anthony, Junhan Hu, Xun Xue, Robin Dawn Grosman, Nattavut Sutyanyong
  • Patent number: 12142548
    Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises one or more die paddles comprising a first die paddle. The first die paddle comprises one or more through holes, one or more protrusions with grooves on top surfaces of the one or more protrusions, or one or more squeezed extensions. Each of the one or more through holes is filled with a respective portion of the molding encapsulation. Each of the one or more through holes may be of a rectangular shape, a rectangular shape with four filleted corners, a circular shape, or an oval shape. Each of the grooves is filled with a respective portion of the molding encapsulation. A respective side wall of each of the one or more squeezed extensions is of a swallowtail shape. The swallowtail shape directly contacts the molding encapsulation.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: November 12, 2024
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Long-Ching Wang, Xiaoguang Zeng, Mary Jane R. Alin, Hailin Zhou, Guobing Shen
  • Publication number: 20240096768
    Abstract: A semiconductor package includes a lead frame, a low side field-effect transistor (FET), a high side FET, a metal clip, and a molding encapsulation. The low side FET is flipped and is attached to a first die paddle of the lead frame. The lead frame comprises one or more voltage input (Vin) leads; a gate lead; one or more switching node (Lx) leads; a first die paddle; a second die paddle; and an end paddle. Each of an exposed bottom surface of the one or more Lx leads is directly connected to an exposed bottom surface of the end paddle. A longitudinal direction of an exposed bottom surface of the gate lead is perpendicular to a longitudinal direction of each of the exposed bottom surface of the one or more Lx leads. An entirely of each of the one or more Vin leads is of the full thickness.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 21, 2024
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Lin Chen, Long-Ching Wang, Hui Ye
  • Publication number: 20230420340
    Abstract: A semiconductor package includes a lead frame, a chip, and a molding encapsulation. The lead frame comprises a die paddle, a first plurality of leads, additional one or more leads, a second plurality of leads, a first tie bar, a second tie bar, a third tie bar, and a fourth tie bar. A respective end surface of each lead of the first plurality of leads, the additional one or more leads, and the second plurality of leads is plated with a metal. A respective end surface of the first tie bar, the second tie bar, the third tie bar, and the fourth tie bar is not plated with the metal. A method for fabricating a semiconductor package includes the steps of providing a lead frame array, mounting a chip, forming a molding encapsulation, applying a trimming process, applying a plating process, and applying a singulation process.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 28, 2023
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Madhur Bobde, Long-Ching Wang, Xiaoguang Zeng
  • Patent number: 11853284
    Abstract: A method includes storing an anchor row vector identification for an anchor row to a local memory. It is determined whether the anchor row vector identification is visible based on isolation requirements. The anchor row vector identification is accessed upon a determination that the anchor row vector identification is visible, and the row vector identification is re-read from the local memory. It is determined whether the anchor row vector identification has not changed since a start of the accessing. Upon a determination that the anchor row vector identification has not changed, read anchor row fields are returned. A first check history is performed on an anchor row history tuple sequence number (TSN) for the anchor row.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 26, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ronald J. Barber, Bishwaranjan Bhattacharjee, Mohammad Sadoghi Hamedani, Guy M. Lohman, Chandrasekaran Mohan, Vijayshankar Raman, Richard S. Sidle, Adam J. Storm, Xun Xue
  • Patent number: 11721665
    Abstract: A wafer level chip scale semiconductor package comprises a device semiconductor layer, a backside metallization layer, a film laminate layer, and a metal layer. The device semiconductor layer comprises a plurality of metal electrodes disposed on a front surface of the device semiconductor. Each side surface of the backside metallization layer is coplanar with a corresponding side surface of the device semiconductor layer. Each side surface of the metal layer is coplanar with a corresponding side surface of the film laminate layer. A surface area of a back surface of the backside metallization layer is smaller than a surface area of a front surface of the metal layer.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: August 8, 2023
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Madhur Bobde, Long-Ching Wang, Bo Chen
  • Patent number: 11699627
    Abstract: A method comprises the steps of providing a wafer; applying a redistribution layer, grinding a back side of the wafer; depositing a metal layer; and applying a singulation process. A semiconductor package comprises a metal-oxide-semiconductor field-effect transistor (MOSFET), a redistribution layer, and a metal layer. The MOSFET comprises a source electrode, a gate electrode, a drain electrode and a plurality of partial drain plugs. The source electrode, the gate electrode, and the drain electrode are positioned at a front side of the MOSFET.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: July 11, 2023
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Long-Ching Wang, Hongyong Xue, Madhur Bobde, Zhiqiang Niu, Jun Lu
  • Publication number: 20230215783
    Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises one or more die paddles comprising a first die paddle. The first die paddle comprises one or more through holes, one or more protrusions with grooves on top surfaces of the one or more protrusions, or one or more squeezed extensions. Each of the one or more through holes is filled with a respective portion of the molding encapsulation. Each of the one or more through holes may be of a rectangular shape, a rectangular shape with four filleted corners, a circular shape, or an oval shape. Each of the grooves is filled with a respective portion of the molding encapsulation. A respective side wall of each of the one or more squeezed extensions is of a swallowtail shape. The swallowtail shape directly contacts the molding encapsulation.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Long-Ching Wang, Xiaoguang Zeng, Mary Jane R. Alin, Hailin Zhou, Guobing Shen
  • Patent number: 11688671
    Abstract: A semiconductor package comprises a lead frame, a first field-effect transistor (FET), a second low side FET, a first high side FET, a second high side FET, a first metal clip, a second metal clip, and a molding encapsulation. The semiconductor package further comprises an optional integrated circuit (IC) controller or an optional inductor. A method for fabricating a semiconductor package. The method comprises the steps of providing a lead frame; attaching a first low side FET, a second low side FET, a first high side FET, and a second high side FET to the lead frame; mounting a first metal clip and a second metal clip; forming a molding encapsulation; and applying a singulation process.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: June 27, 2023
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL, LP
    Inventor: Yan Xun Xue
  • Patent number: 11640383
    Abstract: Methods and systems are described for managing a shared database. One or more processing nodes may access a shared database. A common log node may manage the shared database. The common log node may validate database operations requested by the one or more processing nodes. During validation, the common log node may detect conflicts that occur between database operations requested by the one or more processing nodes.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 2, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xun Xue, Chong Chen, Per-Ake Larson, Robin Grosman
  • Patent number: 11604597
    Abstract: This application provides a data processing method and apparatus. The method includes: receiving, by a master storage node, information that is about a first transaction and that is sent by a read-write node, where the information about the first transaction is used to request to perform a write operation on first data stored on the master storage node; determining, by the master storage node, the first data based on the information about the first transaction, and executing the first transaction; generating, by the master storage node, first transaction status metadata when the first transaction ends, where the first transaction status metadata includes identification information of expired data and identification information of the first transaction; and sending, by the master storage node, the first transaction status metadata to at least one read-only node. According to the data processing method and apparatus, a read delay of a read-only node can be eliminated.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: March 14, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Robin Grosman, Xun Xue, Yuk Kuen Chan, Wenbin Ma
  • Patent number: 11581195
    Abstract: A semiconductor package comprises a lead frame, a chip, and a molding encapsulation. The lead frame comprises one or more die paddles, a first plurality of leads, and a second plurality of leads. A respective end surface of each lead of the first plurality of leads and the second plurality of leads is plated with a metal. A first respective window on a first side of each lead of the first plurality of leads and the second plurality of leads is not plated with the metal. A second respective window on a second side of each lead of the first plurality of leads and the second plurality of leads is not plated with the metal. A method for fabricating a semiconductor package comprises the steps of providing a lead frame array, mounting a chip, forming a molding encapsulation, and applying a cutting process or a punching process.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: February 14, 2023
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Long-Ching Wang, Lei Fukuda, Adrian Chee Heong Koh, Peter Wilson, Feng Ye
  • Publication number: 20220278076
    Abstract: A wafer level chip scale semiconductor package comprises a device semiconductor layer, a backside metallization layer, a film laminate layer, and a metal layer. The device semiconductor layer comprises a plurality of metal electrodes disposed on a front surface of the device semiconductor. Each side surface of the backside metallization layer is coplanar with a corresponding side surface of the device semiconductor layer. Each side surface of the metal layer is coplanar with a corresponding side surface of the film laminate layer. A surface area of a back surface of the backside metallization layer is smaller than a surface area of a front surface of the metal layer.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Madhur Bobde, Long-Ching Wang, Bo Chen
  • Publication number: 20220278009
    Abstract: A method comprises the steps of providing a wafer; applying a redistribution layer, grinding a back side of the wafer; depositing a metal layer; and applying a singulation process. A semiconductor package comprises a metal-oxide-semiconductor field-effect transistor (MOSFET), a redistribution layer, and a metal layer. The MOSFET comprises a source electrode, a gate electrode, a drain electrode and a plurality of partial drain plugs. The source electrode, the gate electrode, and the drain electrode are positioned at a front side of the MOSFET.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 1, 2022
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Long-Ching Wang, Hongyong Xue, Madhur Bobde, Zhiqiang Niu, Jun Lu