Patents by Inventor Yuncheng Song

Yuncheng Song 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: 10475677
    Abstract: An exemplary apparatus includes a testing module connected to, and providing a test voltage to, an integrated circuit containing devices under test. The testing module performs a time-dependent dielectric breakdown (TDDB) test on the devices under test. A decoder is connected to the devices under test and the testing module. The decoder selectively connects each device being tested to the testing module. Efuses are connected to a different one of the devices under test. The efuses separately electrically disconnect each of the devices under test from the test voltage upon failure of a corresponding device under test. Protection circuits are connected between the efuses and a ground voltage. Each protection circuit provides a shunt around the decoder upon failure of the device under test.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 12, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Tian Shen, Anil Kumar, Yuncheng Song, Kong Boon Yeap, Ronald G. Filippi, Jr., Linjun Cao, Seungman Choi, Cathryn J. Christiansen, Patrick R. Justison
  • Publication number: 20190067056
    Abstract: An exemplary apparatus includes a testing module connected to, and providing a test voltage to, an integrated circuit containing devices under test. The testing module performs a time-dependent dielectric breakdown (TDDB) test on the devices under test. A decoder is connected to the devices under test and the testing module. The decoder selectively connects each device being tested to the testing module. Efuses are connected to a different one of the devices under test. The efuses separately electrically disconnect each of the devices under test from the test voltage upon failure of a corresponding device under test. Protection circuits are connected between the efuses and a ground voltage. Each protection circuit provides a shunt around the decoder upon failure of the device under test.
    Type: Application
    Filed: August 22, 2017
    Publication date: February 28, 2019
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Tian Shen, Anil Kumar, Yuncheng Song, Kong Boon Yeap, Ronald G. Filippi, JR., Linjun Cao, Seungman Choi, Cathryn J. Christiansen, Patrick R. Justison
  • Patent number: 10068660
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device writeability through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS through the array VCS driver.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: September 4, 2018
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9916212
    Abstract: Method, apparatus, and system for improving semiconductor device writeability at row/bit level through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS, wherein the first array supply voltage and the second array supply voltage are greater than the operational array supply voltage. By virtue of BTI, application of the first array supply voltage may lead to improved writeability of one or more cells of the device.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 13, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Publication number: 20170271032
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device writeability through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS through the array VCS driver.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Publication number: 20170242759
    Abstract: Method, apparatus, and system for improving semiconductor device writeability at row/bit level through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS, wherein the first array supply voltage and the second array supply voltage are greater than the operational array supply voltage. By virtue of BTI, application of the first array supply voltage may lead to improved writeability of one or more cells of the device.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 24, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9704600
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device writeability through bias temperature instability. Such a device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line comprises a supply voltage line (VCS) which supplies voltage to each latch of a first number of cells; an array VCS driver electrically connected to each VCS; and a control line configured to provide an operational array supply voltage, a first array supply voltage, or a second array supply voltage to each VCS through the array VCS driver.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 11, 2017
    Assignee: GLOBAL FOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9601188
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device yield and/or reliability through bias temperature instability (BTI). One device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line controls access to each pass gate of a first number of cells; a word line driver electrically connected to each word line; a row decoder configured to authorize or deauthorize a write voltage to each word line through the word line driver, wherein the write voltage is selected from an operational write voltage or a first write voltage; and a control line configured to provide an operational write voltage or a first write voltage to each word line authorized by the row decoder, wherein the first write voltage is greater than an operational write voltage.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 21, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song
  • Patent number: 9601187
    Abstract: We disclose methods, apparatus, and systems for improving semiconductor device yield and/or reliability through bias temperature instability (BTI). One device may comprise a plurality of cells of an array, wherein each of the cells comprises a pass gate and a latch; a plurality of word lines, wherein each word line controls access to each pass gate of a first number of cells; a word line driver electrically connected to each word line; and a control line configured to provide an operational write voltage or a first write voltage to each word line through the word line driver. By virtue of BTI, application of the first write voltage may lead to improved stability of data desired to be read from one or more cells of the device.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 21, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Akhilesh Gautam, Randy W. Mann, William McMahon, Yoann Mamy Randriamihaja, Yuncheng Song