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).

  • Patent number: 9653383
    Abstract: A semiconductor device with thick bottom metal comprises a semiconductor chip covered with a top plastic package layer at its front surface and a back metal layer at its back surface, the top plastic package layer surrounds sidewalls of the metal bumps with a top surface of the metal bumps exposing from the top plastic package layer, a die paddle for the semiconductor chip to mount thereon and a plastic package body.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 16, 2017
    Assignee: Alpha & Omega Semiconductor (Cayman), Ltd.
    Inventors: Hamza Yilmaz, Yan Xun Xue, Jun Lu, Ming-Chen Lu, Yan Huo, Aihua Lu
  • Patent number: 9646044
    Abstract: Technology for applying locks to memory pages. More specifically, a sticky lock is chosen by matching observed usage patterns with predetermined patterns associated with various sticky locks and/or types of stick locks increase database performance by reducing required communications and information transfers.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 9, 2017
    Assignee: International Business Machines Corporation
    Inventors: Ronen Grosman, Matthew A. Huras, Bret R. Olszewski, Keriley K. Romanufa, Aamer U. Sachedina, Xun Xue
  • Patent number: 9633070
    Abstract: According to embodiments of the present invention, one or more computer processors determine that a predetermined workload threshold associated with an invalidated object is not exceeded and transmits an invalidation command associated with the invalidated object to the owner of the invalidated object. The one or more computer processors instruct the modifier of the invalidated object to retain possession of a first lock on the object beyond the transaction. The one or more computer processors determine that a usage pattern associated with the invalidated object matches a predetermined usage pattern for selecting a lock that can be retained beyond an associated transaction and transmits a second lock a requestor. The one or more computer processors instruct the modifier to release possession of the first lock to the owner and transmit a first image of the current version of the invalidated object to the owner for subsequent transmission to the requestor.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: April 25, 2017
    Assignee: International Business Machines Corporation
    Inventors: Ronen Grosman, Matthew A. Huras, Bret R. Olszewski, Keriley K. Romanufa, Aamer U. Sachedina, Xun Xue
  • Publication number: 20170098626
    Abstract: The present invention discloses small-size battery protection packages and provides a process of fabricating small-size battery protection packages. A battery protection package includes a first common-drain metal oxide semiconductor field effect transistor (MOSFET), a second common-drain MOSFET, a power control integrated circuit (IC), a plurality of solder balls, a plurality of conductive bumps, and a packaging layer. The power control IC is vertically stacked on top of the first and second common-drain MOSFETs. At least a majority portion of the power control IC and at least majority portions of the plurality of solder balls are embedded into the packaging layer.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 6, 2017
    Applicant: Alpha and Omega Semiconductor Incorporated
    Inventors: Zhiqiang Niu, Yan Xun Xue, Man Sheng Hu, Jun Lu, Yueh-Se Ho, Hamza Yilmaz
  • Publication number: 20170075951
    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: Application
    Filed: December 1, 2016
    Publication date: March 16, 2017
    Inventors: Ronald J. Barber, Bishwaranjan Bhattacharjee, Guy M. Lohman, Chandrasekaran Mohan, Vijayshankar Raman, Mohammad Sadoghi Hamedani, Richard S. Sidle, Adam J. Storm, Xun Xue
  • Publication number: 20170075950
    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: Application
    Filed: December 1, 2016
    Publication date: March 16, 2017
    Inventors: Ronald J. Barber, Bishwaranjan Bhattacharjee, Guy M. Lohman, Chandrasekaran Mohan, Vijayshankar Raman, Mohammad Sadoghi Hamedani, Richard S. Sidle, Adam J. Storm, Xun Xue
  • Publication number: 20170046377
    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: Application
    Filed: August 11, 2015
    Publication date: February 16, 2017
    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: 9564406
    Abstract: The present invention discloses small-size battery protection packages and provides a process of fabricating small-size battery protection packages. A battery protection package includes a first common-drain metal oxide semiconductor field effect transistor (MOSFET), a second common-drain MOSFET, a power control integrated circuit (IC), a plurality of solder balls, a plurality of conductive bumps, and a packaging layer. The power control IC is vertically stacked on top of the first and second common-drain MOSFETs. At least a majority portion of the power control IC and at least majority portions of the plurality of solder balls are embedded into the packaging layer.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 7, 2017
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventors: Zhiqiang Niu, Yan Xun Xue, Man Sheng Hu, Jun Lu, Yueh-Se Ho, Hamza Yilmaz
  • Publication number: 20170033060
    Abstract: The present invention discloses small-size battery protection packages and provides a process of fabricating small-size battery protection packages. A battery protection package includes a first common-drain metal oxide semiconductor field effect transistor (MOSFET), a second common-drain MOSFET, a power control integrated circuit (IC), a plurality of solder balls, a plurality of conductive bumps, and a packaging layer. The power control IC is vertically stacked on top of the first and second common-drain MOSFETs. At least a majority portion of the power control IC and at least majority portions of the plurality of solder balls are embedded into the packaging layer.
    Type: Application
    Filed: July 30, 2015
    Publication date: February 2, 2017
    Applicant: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventors: Zhiqiang Niu, Yan Xun Xue, Man Sheng Hu, Jun Lu, Yueh-Se Ho, Hamza Yilmaz
  • Publication number: 20170025356
    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: October 6, 2016
    Publication date: January 26, 2017
    Applicant: Alpha and Omega Semiconductor Incorporated
    Inventor: Yan Xun Xue
  • Patent number: 9547659
    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: December 18, 2015
    Date of Patent: January 17, 2017
    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
  • Publication number: 20160379918
    Abstract: A method of manufacturing a semiconductor package having a small gate clip is disclosed. A first and second semiconductor chips, each of which includes a source electrode and a gate electrode at a top surface, are attached on two adjacent lead frame units of a lead frame such that the lead frame unit with the first chip formed thereon is rotated 180 degrees in relation to the other lead frame unit with the second semiconductor chip formed thereon. A first and second clip sets are mounted on the first and second semiconductor chips, wherein the first clip set is connected to the gate electrode of the first chip, the source electrode of the second chip, and their corresponding leads and the second clip set is connected to the gate electrode of the second chip, the source electrode of the first chip and their corresponding leads.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Applicant: Alpha and Omega Semiconductor Incorporated
    Inventors: Yan Xun Xue, Hamza Yilmaz, Yueh-Se Ho, Jun Lu, Ming-Chen Lu, Hongtao Gao
  • Publication number: 20160379917
    Abstract: A power semiconductor package device and a method of preparation the device are disclosed. The package device includes a die paddle, a first pin, a second pin, and a semiconductor chip attached to the die paddle. A first electrode, a second electrode and a third electrode of the semiconductor chip are connected to the first pin, the second pin and the die paddle respectively. A plastic package body covers the semiconductor chip, the die paddle, the first pin and the second pin. The first pin and the second pin are located near two adjacent corners of the plastic package body. The bottom surface and two side surfaces of each of the first pin and the second pin are exposed from the plastic package body. Locking mechanisms are constructed to prevent the first pin and the second pin from falling off the power semiconductor package device during a manufacturing cutting process. Portions of the first pin, portions of the second pin, and portions of the plastic package body can be cut off.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 29, 2016
    Applicant: Alpha and Omega Semiconductor Incorporated
    Inventors: Yan Xun Xue, Hamza Yilmaz, Yueh-Se Ho, Jun Lu, De Mei Gong
  • Patent number: 9520380
    Abstract: A wafer process for molded chip scale package (MCSP) comprises: depositing metal bumps on bonding pads of chips on a wafer; forming a first packaging layer at a front surface of the wafer to cover the metal bumps; forming an un-covered ring at an edge of the wafer to expose two ends of each scribe line of a plurality of scribe lines; thinning the first packaging layer to expose metal bumps; forming cutting grooves; grinding a back surface of the wafer to form a recessed space and a support ring at the edge of the wafer; depositing a metal seed layer at a bottom surface of the wafer in the recessed space; cutting off an edge portion of the wafer; flipping and mounting the wafer on a substrate; depositing a metal layer covering the metal seed layer; removing the substrate from the wafer; and separating individual chips from the wafer by cutting through the first packaging layer, the wafer, the metal seed layers and the metal layers along the scribe lines.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: December 13, 2016
    Assignee: Alpha and Omega Semiconductor Incorporated
    Inventors: Yan Xun Xue, Hamza Yilmaz, Yueh-Se Ho, Jun Lu, Zhiqiang Niu, Guo Feng Lian
  • Publication number: 20160350351
    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: Application
    Filed: June 1, 2015
    Publication date: December 1, 2016
    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: 9502268
    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: November 5, 2015
    Date of Patent: November 22, 2016
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventor: Yan Xun Xue
  • Publication number: 20160315039
    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: Application
    Filed: July 7, 2016
    Publication date: October 27, 2016
    Applicant: Alpha and Omega Semiconductor Incorporated
    Inventors: Hamza Yilmaz, Yan Xun Xue, Jun Lu, Peter Wilson, Yan Huo, Zhiqiang Niu, Ming-Chen Lu
  • Patent number: 9472491
    Abstract: A method of manufacturing a semiconductor package having a small gate clip is disclosed. A first and second semiconductor chips, each of which includes a source electrode and a gate electrode at a top surface, are attached on two adjacent lead frame units of a lead frame such that the lead frame unit with the first chip formed thereon is rotated 180 degrees in relation to the other lead frame unit with the second semiconductor chip formed thereon. A first and second clip sets are mounted on the first and second semiconductor chips, wherein the first clip set is connected to the gate electrode of the first chip, the source electrode of the second chip, and their corresponding leads and the second clip set is connected to the gate electrode of the second chip, the source electrode of the first chip and their corresponding leads.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 18, 2016
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventors: Yan Xun Xue, Hamza Yilmaz, Yueh-Se Ho, Jun Lu, Ming-Chen Lu, Hongtao Gao
  • Patent number: 9431328
    Abstract: A power semiconductor package and a method of preparation are disclosed. The power semiconductor package includes a pair of first and second die paddles arranged side by side, a first semiconductor chip attached to the first die paddle, a second semiconductor chip attached to the second die paddle, a metal clip electrically connecting a first electrode at the top surface of the first semiconductor chip and a first electrode at the top surface of the second semiconductor chip to a second pin, a first conductive structure connecting a second electrode at the top surface of a first semiconductor chip to a first pin, and a second conductive structure connecting a second electrode at the top surface of the second semiconductor chip to a third pin. In examples of the present disclosure, double-chip common source technique for the source electrodes of two power MOSFETs is achieved by applying a T-shape metal clip.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: August 30, 2016
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventors: Hamza Yilmaz, Yan Xun Xue, Jun Lu
  • Patent number: 9425181
    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: May 2, 2015
    Date of Patent: August 23, 2016
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED
    Inventors: Hamza Yilmaz, Yan Xun Xue, Jun Lu, Peter Wilson, Yan Huo, Zhiqiang Niu, Ming-Chen Lu