Patents by Inventor Kyung Suk Oh

Kyung Suk Oh 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: 20190206458
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Applicant: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Publication number: 20190148337
    Abstract: An electronic device includes a circuit board, a semiconductor device package mounted on the circuit board, the semiconductor device package including a package substrate connected to the circuit board, a first semiconductor device and a second semiconductor device mounted side by side on the package substrate, and a molding surrounding a sidewall of the first semiconductor device and a sidewall of the second semiconductor device, the molding not covering a top surface of the first semiconductor device, and a heat dissipation structure on the semiconductor device package, the top surface of the first semiconductor device being in contact with the heat dissipation structure.
    Type: Application
    Filed: June 7, 2018
    Publication date: May 16, 2019
    Inventors: Yong-hoon KIM, Kil-soo KIM, Kyung-suk OH, Tae-joo HWANG
  • Publication number: 20190130952
    Abstract: A system has a plurality of memory devices arranged in a fly-by topology, each having on-die termination (ODT) circuitry for connecting to an address and control (RQ) bus. The ODT circuitry of each memory device includes a set of one or more control registers for controlling on-die termination of one or more signal lines of the RQ bus. A first memory device includes a first set of one or more control registers storing a first ODT value, for controlling termination of one or more signal lines of the RQ bus by the ODT circuitry of the first memory device, and a second memory device includes a second set of one or more control registers storing a second ODT value different from the first ODT value, for controlling termination of one or more signal lines of the RQ bus by the ODT circuitry of the second memory device.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Ian Shaeffer, Kyung Suk Oh
  • Patent number: 10268252
    Abstract: Disclosed embodiments relate to a system that changes transmitter and/or receiver settings to deal with reliability issues caused by a predetermined event, such as a change in a power state or a clock start event. One embodiment uses a first setting while operating a transmitter during a normal operating mode, and a second setting while operating the transmitter during a transient period following the predetermined event. A second embodiment uses similar first and second settings in a receiver, or in both a transmitter and a receiver employed on one side of a bidirectional link. The first and second settings can be associated with different swing voltages, edge rates, equalizations and/or impedances.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: April 23, 2019
    Assignee: Rambus Inc.
    Inventors: Yu Chang, Lei Luo, Kyung Suk Oh
  • Patent number: 10270442
    Abstract: A memory control component outputs a memory write command to a memory IC and also outputs write data to be received via data inputs of the memory IC. Prior to reception of the write data within the memory IC, the memory control component asserts a termination control signal that causes the memory IC to apply to the data inputs a first on-die termination impedance during reception of the write data followed by a second on-die termination impedance after the write data has been received. The memory control component deasserts the termination control signal to cause the memory IC to apply no termination impedance to the data inputs.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 23, 2019
    Assignee: Rambus Inc.
    Inventors: Kyung Suk Oh, Ian P. Shaeffer
  • Publication number: 20190052269
    Abstract: A memory control component outputs a memory write command to a memory IC and also outputs write data to be received via data inputs of the memory IC. Prior to reception of the write data within the memory IC, the memory control component asserts a termination control signal that causes the memory IC to apply to the data inputs a first on-die termination impedance during reception of the write data followed by a second on-die termination impedance after the write data has been received. The memory control component deasserts the termination control signal to cause the memory IC to apply no termination impedance to the data inputs.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 14, 2019
    Inventors: Kyung Suk Oh, Ian P. Shaeffer
  • Patent number: 10192598
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: January 29, 2019
    Assignee: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Patent number: 10115439
    Abstract: A system has a plurality of memory devices arranged in a fly-by topology, each having on-die termination (ODT) circuitry for connecting to an address and control (RQ) bus. The ODT circuitry of each memory device includes a set of one or more control registers for controlling on-die termination of one or more signal lines of the RQ bus. A first memory device includes a first set of one or more control registers storing a first ODT value, for controlling termination of one or more signal lines of the RQ bus by the ODT circuitry of the first memory device, and a second memory device includes a second set of one or more control registers storing a second ODT value different from the first ODT value, for controlling termination of one or more signal lines of the RQ bus by the ODT circuitry of the second memory device.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 30, 2018
    Assignee: RAMBUS INC.
    Inventors: Ian Shaeffer, Kyung Suk Oh
  • Publication number: 20180240778
    Abstract: Integrated circuit packages with multiple integrated circuit dies are provided. A multichip package may include at least two integrated circuit dies that communicate using an embedded multi-die interconnect bridge (EMIB) in a substrate of the multi-chip package. The EMIB may receive power at contact pads formed at a back side of the EMIB that are coupled to a back side conductor on which the EMIB is mounted. The back side conductor may be separated into multiple regions that are electrically isolated from one another and that each receive a different power supply voltage signal or data signal from a printed circuit board. These power supply voltage signals and data signals may be provided to the two integrated circuit dies through internal microvias or through-silicon vias formed in the EMIB.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Applicant: Intel Corporation
    Inventors: Hui Liu, Kyung Suk Oh
  • Patent number: 10056902
    Abstract: A memory control component outputs a memory write command to a memory IC and also outputs write data to be received via data inputs of the memory IC. Prior to reception of the write data within the memory IC, the memory control component asserts a termination control signal that causes the memory IC to apply to the data inputs a first on-die termination impedance during reception of the write data followed by a second on-die termination impedance after the write data has been received. The memory control component deasserts the termination control signal to cause the memory IC to apply no termination impedance to the data inputs.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 21, 2018
    Assignee: Rambus Inc.
    Inventors: Kyung Suk Oh, Ian P. Shaeffer
  • Publication number: 20180235077
    Abstract: A structure for delivering power is described. In some embodiments, the structure can include conductors disposed on two or more layers. Specifically, the structure can include a first set of interdigitated conductors disposed on a first layer and oriented substantially along an expected direction of current flow. At least one conductor in the first set of interdigitated conductors may be maintained at a first voltage, and at least one conductor in the first set of interdigitated conductors may be maintained at a second voltage, wherein the second voltage is different from the first voltage. The structure may further include a conducting structure disposed on a second layer, wherein the second layer is different from the first layer, and wherein at least one conductor in the conducting structure is maintained at the first voltage.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 16, 2018
    Applicant: Rambus Inc.
    Inventors: Kyung Suk Oh, Ralf M. Schmitt, Yijiong Feng
  • Publication number: 20180196489
    Abstract: Disclosed embodiments relate to a system that changes transmitter and/or receiver settings to deal with reliability issues caused by a predetermined event, such as a change in a power state or a clock start event. One embodiment uses a first setting while operating a transmitter during a normal operating mode, and a second setting while operating the transmitter during a transient period following the predetermined event. A second embodiment uses similar first and second settings in a receiver, or in both a transmitter and a receiver employed on one side of a bidirectional link. The first and second settings can be associated with different swing voltages, edge rates, equalizations and/or impedances.
    Type: Application
    Filed: January 5, 2018
    Publication date: July 12, 2018
    Inventors: Yu Chang, Lei Luo, Kyung Suk Oh
  • Patent number: 9941201
    Abstract: In one embodiment, an integrated circuit die includes first and second inductor structures, a first ground conductor, a second ground conductor and a conductive trace. The first ground conductor provides a first ground pathway for the first inductor structure. The second ground conductor provides a second ground pathway for the second inductor structure. The conductive trace coupled between the first and second ground conductors may magnetically decouple the first and second inductor structures. In addition, the integrated circuit die may also include conductive guard ring structures that surround the first and second inductor structures. One of the conductive guard ring structures may be connected to the first grounding pathway and the other conductive guard ring structure may be connected to the second grounding pathway. The conductive guard ring structures may further magnetically decouple the first and second inductor structures.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: April 10, 2018
    Assignee: Altera Corporation
    Inventors: Xiaohong Jiang, Nathaniel Wright Unger, Kyung Suk Oh
  • Patent number: 9935052
    Abstract: Circuitry having power lines with comparable path resistances may include input-output blocks in an integrated circuit (IC) that are coupled to respective sets of bumps on the IC. The circuitry may have a core region and a periphery region. Groups of input-output blocks may be formed in the periphery region. A first set of power lines in the circuitry extends from the core region to the first group of input-output blocks whereas a second set of power lines in the circuitry extends from the core region to the second group of input-output blocks. The first and second sets of power lines are physically separate from each other.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: April 3, 2018
    Assignee: Altera Corporation
    Inventors: Hui Liu, Karthik Chandrasekar, Kyung Suk Oh, Kaushik Chanda, Arifur Rahman
  • Publication number: 20180083091
    Abstract: An on-die-capacitor structure includes a first capacitor and a second capacitor. The first capacitor may have first and second terminals. The first and second terminals are directly connected to first and second power supply rail structures, respectively. The first power supply rail structure is different from the second power supply rail structure. The second capacitor may have third and fourth terminals. The second capacitor is connected in series between the second power supply rail structure and a third power supply rail structure. The third power supply rail structure is different from the first and second power supply rail structures. The third and fourth terminals are directly connected to the second and third power supply rail structures, respectively. The first capacitor may have a first capacitance and the second capacitor structure may have a second capacitance that is greater than the first capacitance.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventors: Kyung Suk Oh, Charu Sardana, Yanzhong Xu, Guang Chen
  • Patent number: 9913363
    Abstract: A structure for delivering power is described. In some embodiments, the structure can include conductors disposed on two or more layers. Specifically, the structure can include a first set of interdigitated conductors disposed on a first layer and oriented substantially along an expected direction of current flow. At least one conductor in the first set of interdigitated conductors may be maintained at a first voltage, and at least one conductor in the first set of interdigitated conductors may be maintained at a second voltage, wherein the second voltage is different from the first voltage. The structure may further include a conducting structure disposed on a second layer, wherein the second layer is different from the first layer, and wherein at least one conductor in the conducting structure is maintained at the first voltage.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: March 6, 2018
    Assignee: Rambus Inc.
    Inventors: Kyung Suk Oh, Ralf M. Schmitt, Yijiong Feng
  • Publication number: 20180053540
    Abstract: A system has a plurality of memory devices arranged in a fly-by topology, each having on-die termination (ODT) circuitry for connecting to an address and control (RQ) bus. The ODT circuitry of each memory device includes a set of one or more control registers for controlling on-die termination of one or more signal lines of the RQ bus. A first memory device includes a first set of one or more control registers storing a first ODT value, for controlling termination of one or more signal lines of the RQ bus by the ODT circuitry of the first memory device, and a second memory device includes a second set of one or more control registers storing a second ODT value different from the first ODT value, for controlling termination of one or more signal lines of the RQ bus by the ODT circuitry of the second memory device.
    Type: Application
    Filed: July 31, 2017
    Publication date: February 22, 2018
    Inventors: Ian Shaeffer, Kyung Suk Oh
  • Publication number: 20180047436
    Abstract: A memory device comprising a programmable command-and-address (CA) interface and/or a programmable data interface is described. In an operational mode, two or more CA interfaces may be active. In another operational mode, at least one, but not all, CA interfaces may be active. In an operational mode, all of the data interfaces may be active. In another operational mode, at least one, but not all, data interfaces may be active. The memory device can include circuitry to select: an operational mode; a sub-mode within an operational mode; one or more CA interfaces as the active CA interface(s); a main CA interface from multiple active CA interfaces; and/or one or more data interfaces as the active data interfaces. The circuitry may perform these selection(s) based on one or more bits in one or more registers and/or one or more signals received on one or more pins.
    Type: Application
    Filed: June 14, 2017
    Publication date: February 15, 2018
    Applicant: Rambus Inc.
    Inventors: Ian Shaeffer, Lawrence Lai, Fan Ho, David A. Secker, Wayne S. Richardson, Akash Bansal, Brian S. Leibowitz, Kyung Suk Oh
  • Patent number: 9870040
    Abstract: Disclosed embodiments relate to a system that changes transmitter and/or receiver settings to deal with reliability issues caused by a predetermined event, such as a change in a power state or a clock start event. One embodiment uses a first setting while operating a transmitter during a normal operating mode, and a second setting while operating the transmitter during a transient period following the predetermined event. A second embodiment uses similar first and second settings in a receiver, or in both a transmitter and a receiver employed on one side of a bidirectional link. The first and second settings can be associated with different swing voltages, edge rates, equalizations and/or impedances.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 16, 2018
    Assignee: Rambus Inc.
    Inventors: Yu Chang, Lei Luo, Kyung Suk Oh
  • Patent number: 9859358
    Abstract: An on-die-capacitor structure includes a first capacitor and a second capacitor. The first capacitor may have first and second terminals. The first and second terminals are directly connected to first and second power supply rail structures, respectively. The first power supply rail structure is different from the second power supply rail structure. The second capacitor may have third and fourth terminals. The second capacitor is connected in series between the second power supply rail structure and a third power supply rail structure. The third power supply rail structure is different from the first and second power supply rail structures. The third and fourth terminals are directly connected to the second and third power supply rail structures, respectively. The first capacitor may have a first capacitance and the second capacitor structure may have a second capacitance that is greater than the first capacitance.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 2, 2018
    Assignee: Altera Corporation
    Inventors: Kyung Suk Oh, Charu Sardana, Yanzhong Xu, Guang Chen