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: 20210398926
    Abstract: A semiconductor package fabrication method comprises the steps of providing a wafer, applying a seed layer, forming a photo resist layer, plating a copper layer, removing the photo resist layer, removing the seed layer, applying a grinding process, forming metallization, and applying a singulation process. A semiconductor package comprises a silicon layer, an aluminum layer, a passivation layer, a polyimide layer, a copper layer, and metallization. In one example, an area of a contact area of a gate clip is smaller than an area of a gate copper surface. The area of the contact area of the gate clip is larger than a gate aluminum surface. In another example, an area of a contact area of a gate pin is larger than an area of a gate copper surface. The area of the contact area of the gate pin is larger than a gate aluminum surface.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 23, 2021
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventors: Yan Xun Xue, Yueh-Se Ho, Long-Ching Wang, Xiaotian Zhang, Zhiqiang Niu
  • Publication number: 20210343630
    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: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LP
    Inventor: Yan Xun Xue
  • Patent number: 11094617
    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: June 27, 2019
    Date of Patent: August 17, 2021
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN), LTD.
    Inventor: Yan Xun Xue
  • Patent number: 11069604
    Abstract: A semiconductor package has a plurality of pillars or portions of a plurality of lead strips, a plurality of semiconductor devices, one or two molding encapsulations and a plurality of electrical interconnections. The semiconductor package excludes a wire. The semiconductor package excludes a clip. A method is applied to fabricate semiconductor packages. The method includes providing a removable carrier; forming a plurality of pillars or a plurality of lead strips; attaching a plurality of semiconductor devices; forming one or two molding encapsulations; forming a plurality of electrical interconnections and removing the removable carrier. The method may further include a singulation process.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 20, 2021
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD. GRAND
    Inventors: Xiaotian Zhang, Yan Xun Xue, Long-Ching Wang, Yueh-Se Ho, Zhiqiang Niu
  • Patent number: 10991680
    Abstract: A semiconductor package comprises a land grid array substrate, a first VDMOSFET, a second VDMOSFET, and a molding encapsulation. The land grid array substrate comprises a first metal layer, a second metal layer, a third metal layer, a plurality of vias, and a resin. A series of drain pads at a bottom surface of the semiconductor package follow a “drain 1, drain 2, drain 1, and drain 2” pattern. A method for fabricating a semiconductor package. The method comprises the steps of providing a land grid array substrate; mounting a first VDMOSFET and a second VDMOSFET on the land grid array substrate; applying a wire bonding process; forming a molding encapsulation; and applying a singulation process.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: April 27, 2021
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN), LTD.
    Inventors: Yan Xun Xue, Yueh-Se Ho, Long-Ching Wang, Madhur Bobde, Xiaobin Wang, Lin Chen
  • Publication number: 20210097035
    Abstract: The disclosed computing node comprises a processor and a non-transitory storage medium storing instructions executable by the processor. A method and a system are also disclosed. A subset of a plurality of conventional redo records, corresponding to received write requests, is selected based on an identical data location identifier. The conventional redo records of such selected subset are combined into a consolidated redo record. The consolidated redo record is then transmitted to a target node for processing.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 1, 2021
    Inventors: Xun XUE, Huaxin ZHANG, Yuk Kuen CHAN, Wenbin MA
  • Publication number: 20210083088
    Abstract: A semiconductor package comprises a land grid array substrate, a first VDMOSFET, a second VDMOSFET, and a molding encapsulation. The land grid array substrate comprises a first metal layer, a second metal layer, a third metal layer, a plurality of vias, and a resin. A series of drain pads at a bottom surface of the semiconductor package follow a “drain 1, drain 2, drain 1, and drain 2” pattern. A method for fabricating a semiconductor package. The method comprises the steps of providing a land grid array substrate; mounting a first VDMOSFET and a second VDMOSFET on the land grid array substrate; applying a wire bonding process; forming a molding encapsulation; and applying a singulation process.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Yan Xun Xue, Yueh-Se Ho, Long-Ching Wang, Madhur Bobde, Xiaobin Wang, Lin Chen
  • Publication number: 20200411422
    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: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Applicant: Alpha and Omega Semiconductor (Cayman), Ltd
    Inventor: Yan Xun Xue
  • Patent number: 10831741
    Abstract: Techniques for data replication from a primary system to a standby system. A first buffer portion of a transaction log buffer is allocated to a first transaction at a primary system. Upon determining that the first buffer portion is fully formed, before the log data is written to the storage on the primary system, and before the transaction log buffer is entirely full, the log data in the first buffer portion is transmitted to the standby system, from the primary system. Upon writing the log data to the storage on the primary system and after the log data in the first buffer portion is transmitted to the standby system, a notification is transmitted to the standby system, from the primary system, where the standby system is configured to process the received log data responsive to receiving the notification from the primary system.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: November 10, 2020
    Assignee: International Business Machines Corporation
    Inventors: Xun Xue, Steven R. Pearson, Roger L. Q. Zheng, Kevin J. Cherkauer
  • Publication number: 20200348851
    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: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Inventors: Robin GROSMAN, Xun XUE, Yuk Kuen CHAN, Wenbin MA
  • Publication number: 20200194395
    Abstract: A semiconductor package has a plurality of pillars or portions of a plurality of lead strips, a plurality of semiconductor devices, one or two molding encapsulations and a plurality of electrical interconnections. The semiconductor package excludes a wire. The semiconductor package excludes a clip. A method is applied to fabricate semiconductor packages. The method includes providing a removable carrier; forming a plurality of pillars or a plurality of lead strips; attaching a plurality of semiconductor devices; forming one or two molding encapsulations; forming a plurality of electrical interconnections and removing the removable carrier. The method may further include a singulation process.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 18, 2020
    Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Xiaotian Zhang, Yan Xun Xue, Long-Ching Wang, Yueh-Se Ho, Zhiqiang Niu
  • Publication number: 20200194347
    Abstract: A semiconductor package has a plurality of pillars or portions of a plurality of lead strips, a plurality of semiconductor devices, one or two molding encapsulations and a plurality of electrical interconnections. The semiconductor package excludes a wire. The semiconductor package excludes a clip. A method is applied to fabricate semiconductor packages. The method includes providing a removable carrier; forming a plurality of pillars or a plurality of lead strips; attaching a plurality of semiconductor devices; forming one or two molding encapsulations; forming a plurality of electrical interconnections and removing the removable carrier. The method may further include a singulation process.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 18, 2020
    Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Yan Xun Xue, Xiaotian Zhang, Long-Ching Wang, Yueh-Se Ho, Zhiqiang Niu
  • Publication number: 20200159845
    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: Application
    Filed: November 15, 2018
    Publication date: May 21, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xun XUE, Chong CHEN, Per-Ake LARSON, Robin GROSMAN
  • Publication number: 20190384754
    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: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    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: 10489374
    Abstract: A method includes setting, by an update processor, a write latch in a first data structure associated with an object. The first data structure is copied to a storage structure. A history tuple sequence number (TSN) of the first data structure is set to point to a TSN of the copied first data structure. The version identifier is set to point to a transaction identification for the object. Data portions are updated for the first data structure. The version identifier is read from the first data structure. It is determined whether the version identifier of the first data structure is visible for a transaction including isolation requirements. If version identifier of the first data structure is visible, the first data structure is accessed and it is determined whether the version identifier of the first data structure changed since starting the transaction.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: November 26, 2019
    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: 10141264
    Abstract: A method to provide a wafer level package with increasing contact pad area comprising the steps of forming a first packaging layer on wafer top surface, grinding the wafer back surface and etch through holes, depositing a metal to fill the through holes and covering wafer backside, cutting through the wafer from wafer backside forming a plurality of grooves separating each chip then depositing a second packaging layer filling the grooves and covering the wafer back metal, reducing the first packaging layer thickness to expose the second packaging layer filling the grooves and forming a plurality of contact pads overlaying the first packaging layer thereafter cutting through the second packaging layer in the grooves to form individual package.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: November 27, 2018
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventor: Yan Xun Xue
  • Patent number: 10083203
    Abstract: A first request may be received to update a first set of values. The first set of values may be stored at a first location within a first data page of a database. The first location may be read-only. In response to the receiving of the first request, a first set of records may be inserted into a second data page. The first set of records may include the update of the first set of values. In response to the inserting, a forward pointer may be stored in the first data page that points to the first set of records on the second data page. One or more committed values may be identified on the second data page. In response to the identifying, the one or more committed values may be merged from the second data page to a third data page.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: September 25, 2018
    Assignee: International Business Machines Corporation
    Inventors: Ronald J. Barber, Bishwaranjan Bhattacharjee, Guy M. Lohman, Chandrasekaran Mohan, Vijayshankar Raman, Mohammad Sadoghi Hamedani, Richard S. Sidle, Adam J. Storm, Xun Xue
  • Patent number: 10043736
    Abstract: A hybrid packaging multi-chip semiconductor device comprises a lead frame unit, a first semiconductor chip, a second semiconductor chip, a first interconnecting structure and a second interconnecting structure, wherein the first semiconductor chip is attached on a first die paddle and the second semiconductor chip is flipped and attached on a third pin and a second die paddle, the first interconnecting structure electrically connecting a first electrode at a front surface of the first semiconductor chip and a third electrode at a back surface of the second semiconductor chip and a second electrode at the front surface of the first semiconductor chip is electrically connected by second interconnecting structure.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 7, 2018
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventors: Hamza Yilmaz, Yan Xun Xue, Jun Lu, Peter Wilson, Yan Huo, Zhiqiang Niu, Ming-Chen Lu
  • Publication number: 20180211916
    Abstract: A method to provide a wafer level package with increasing contact pad area comprising the steps of forming a first packaging layer on wafer top surface, grinding the wafer back surface and etch through holes, depositing a metal to fill the through holes and covering wafer backside, cutting through the wafer from wafer backside forming a plurality of grooves separating each chip then depositing a second packaging layer filling the grooves and covering the wafer back metal, reducing the first packaging layer thickness to expose the second packaging layer filling the grooves and forming a plurality of contact pads overlaying the first packaging layer thereafter cutting through the second packaging layer in the grooves to form individual package.
    Type: Application
    Filed: March 21, 2018
    Publication date: July 26, 2018
    Inventor: Yan Xun Xue
  • Patent number: 9966328
    Abstract: A semiconductor power device is disclosed. The semiconductor power device comprises a lead frame unit, two or more pluralities of single in-line leads, two or more semiconductor chip stacks, and a molding encapsulation. Each semiconductor chip stack includes a high-side semiconductor chip, a low-side semiconductor chip and a clip connecting a top surface of the high-side semiconductor chip to a bottom surface of the low-side semiconductor chip. This invention further discloses a method for fabricating semiconductor power devices.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 8, 2018
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Yan Xun Xue, Zhiqiang Niu