Patents by Inventor Sanjay Dabral

Sanjay Dabral 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: 11101732
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 24, 2021
    Assignee: Apple Inc.
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Publication number: 20210242170
    Abstract: Electronic package structures and systems are described in which a 3D interconnect structure is integrated into a package redistribution layer and/or chiplet for power and signal delivery to a die. Such structures may significantly improve input output (TO) density and routing quality for signals, while keeping power delivery feasible.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 5, 2021
    Inventors: Sanjay Dabral, Zhitao Cao, Kunzhong Hu, Jun Zhai
  • Publication number: 20210217702
    Abstract: Stitched die structures, and methods for interconnecting die are described. In an embodiment, a stitched die structure includes a semiconductor substrate that includes a first die first die area of a first die and a second die area of a second die separate from the first die area. A back-end-of-the-line (BEOL) build-up structure spans over the first die area and the second die area, and includes a first metallic seal directly over a first peripheral area of the first die area, a second metallic seal directly over a second peripheral area of the second die area, and a die-to-die routing extending through the first metallic seal and the second metallic seal to electrically connect the first die to the second die.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Inventors: Sanjay Dabral, Jun Zhai
  • Patent number: 10985107
    Abstract: Stitched die structures, and methods for interconnecting die are described. In an embodiment, a stitched die structure includes a semiconductor substrate that includes a first die area of a first die and a second die area of a second die separate from the first die area. A back-end-of-the-line (BEOL) build-up structure spans over the first die area and the second die area, and includes a first metallic seal directly over a first peripheral area of the first die area, a second metallic seal directly over a second peripheral area of the second die area, and a die-to-die routing extending through the first metallic seal and the second metallic seal to electrically connect the first die to the second die.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 20, 2021
    Assignee: Apple Inc.
    Inventors: Sanjay Dabral, Jun Zhai
  • Publication number: 20200389172
    Abstract: Multi-chip systems and structures for modular scaling are described. In some embodiments an interfacing bar is utilized to couple adjacent chips. For example, a communication bar may utilized to coupled logic chips, and memory bar may be utilized to couple multiple memory chips to a logic chip.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 10, 2020
    Inventors: Sanjay Dabral, Bahattin Kilic, Jie-Hua Zhao, Kunzhong Hu, Suk-Kyu Ryu
  • Publication number: 20200358351
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 12, 2020
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Patent number: 10756622
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: August 25, 2020
    Assignee: Apple Inc
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Patent number: 10742217
    Abstract: Multi-chip systems and structures for modular scaling are described. In some embodiments an interfacing bar is utilized to couple adjacent chips. For example, a communication bar may utilized to coupled logic chips, and memory bar may be utilized to couple multiple memory chips to a logic chip.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: August 11, 2020
    Assignee: Apple Inc.
    Inventors: Sanjay Dabral, Bahattin Kilic, Jie-Hua Zhao, Kunzhong Hu, Suk-Kyu Ryu
  • Patent number: 10714425
    Abstract: In an embodiment, an interposer includes multiple integrated circuits coupled thereto. The integrated circuits may include processors and non-processor functionality that may have previously been integrated with the processors on an SOC. By separating the functionality into multiple integrated circuits, the integrated circuits may be arranged on the interposer to spread out the potentially high power ICs and lower power ICs, interleaving them. In other embodiments, instances of the integrated circuits (e.g. processors) from different manufacturing process conditions may be selected to allow a mix of high performance, high power density integrated circuits and lower performance, low power density integrated circuits. In an embodiment, a phase change material may be in contact with the integrated circuits, providing a local reservoir to absorb heat. In an embodiment, a battery or display components may increase thermal mass and allow longer optimal performance state operation.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: July 14, 2020
    Assignee: Apple Inc.
    Inventor: Sanjay Dabral
  • Patent number: 10712809
    Abstract: Methods and apparatus relating to link power savings with state retention are described. In one embodiment, one or more components of two agents coupled via a serial link are turned off during idle periods while retaining link state in each agent. Other embodiments are also disclosed.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: July 14, 2020
    Assignee: Intel Corporation
    Inventors: Naveen Cherukuri, Jeffrey Wilcox, Venkatraman Iyer, Selim Bilgin, David S. Dunning, Robin Tim Frodsham, Theodore Z. Schoenborn, Sanjay Dabral
  • Publication number: 20200204067
    Abstract: Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.
    Type: Application
    Filed: December 24, 2018
    Publication date: June 25, 2020
    Inventors: Sanjay Dabral, David A. Secker, Jun Zhai, Ralf M. Schmitt, Vidhya Ramachandran, Wenjie Mao
  • Publication number: 20200176419
    Abstract: Stitched die packaging techniques and structures are described in which reconstituted chips are formed using wafer reconstitution and die-stitching techniques. In an embodiment, a chip including a reconstituted chip-level back endo of the line (BEOL) build-up structure to connect a die set embedded in an inorganic gap fill material.
    Type: Application
    Filed: July 5, 2019
    Publication date: June 4, 2020
    Inventors: Sanjay Dabral, Jun Zhai, Kwan-Yu Lai, Kunzhong Hu, Vidhya Ramachandran
  • Publication number: 20200075497
    Abstract: Stitched die structures, and methods for interconnecting die are described. In an embodiment, a stitched die structure includes a semiconductor substrate that includes a first die first die area of a first die and a second die area of a second die separate from the first die area. A back-end-of-the-line (BEOL) build-up structure spans over the first die area and the second die area, and includes a first metallic seal directly over a first peripheral area of the first die area, a second metallic seal directly over a second peripheral area of the second die area, and a die-to-die routing extending through the first metallic seal and the second metallic seal to electrically connect the first die to the second die.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 5, 2020
    Inventors: Sanjay Dabral, Jun Zhai
  • Patent number: 10566286
    Abstract: Routing structures including signal routing between die areas is described. In an embodiment, routing structures include signal lines with a characteristic thickness that is greater than a width. The signal lines may be twisted, and run directly underneath pads.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: February 18, 2020
    Assignee: APPLE INC.
    Inventors: Sanjay Dabral, David A. Secker, Huabo Chen, Zhenggang Cheng
  • Publication number: 20190346909
    Abstract: Methods and apparatus relating to link power savings with state retention are described. In one embodiment, one or more components of two agents coupled via a serial link are turned off during idle periods while retaining link state in each agent. Other embodiments are also disclosed.
    Type: Application
    Filed: January 7, 2019
    Publication date: November 14, 2019
    Applicant: Intel Corporation
    Inventors: Naveen Cherukuri, Jeffrey Wilcox, Venkatraman Iyer, Selim Bilgin, David S. Dunning, Robin Tim Frodsham, Theodore Z. Schoenborn, Sanjay Dabral
  • Publication number: 20190319626
    Abstract: Multi-chip systems and structures for modular scaling are described. In some embodiments an interfacing bar is utilized to couple adjacent chips. For example, a communication bar may utilized to coupled logic chips, and memory bar may be utilized to couple multiple memory chips to a logic chip.
    Type: Application
    Filed: February 4, 2019
    Publication date: October 17, 2019
    Inventors: Sanjay Dabral, Bahattin Kilic, Jie-Hua Zhao, Kunzhong Hu, Suk-Kyu Ryu
  • Patent number: 10438896
    Abstract: Stitched die structures, and methods for interconnecting die are described. In an embodiment, a stitched die structure includes a semiconductor substrate that includes a first die first die area of a first die and a second die area of a second die separate from the first die area. A back-end-of-the-line (BEOL) build-up structure spans over the first die area and the second die area, and includes a first metallic seal directly over a first peripheral area of the first die area, a second metallic seal directly over a second peripheral area of the second die area, and a die-to-die routing extending through the first metallic seal and the second metallic seal to electrically connect the first die to the second die.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: October 8, 2019
    Assignee: Apple Inc.
    Inventors: Sanjay Dabral, Zun Zhai
  • Publication number: 20190189560
    Abstract: Routing structures including signal routing between die areas is described. In an embodiment, routing structures include signal lines with a characteristic thickness that is greater than a width. The signal lines may be twisted, and run directly underneath pads.
    Type: Application
    Filed: January 17, 2019
    Publication date: June 20, 2019
    Inventors: Sanjay Dabral, David A. Secker, Huabo Chen, Zhenggang Cheng
  • Patent number: 10311938
    Abstract: One or more integrated circuits including at least one integrated circuit that is fabricated in a DRAM fabrication process. Capacitors in the DRAM-fabricated integrated circuit can be used for decoupling for logic components of the integrated circuits, and may be used for fine-grain on-chip PMUs. Embedded DRAM memories can be used instead of SRAM memories, with increased density and reduced leakage. More compact systems can be implemented using the integrated circuits.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: June 4, 2019
    Assignee: Apple Inc.
    Inventor: Sanjay Dabral
  • Patent number: 10217708
    Abstract: Routing structures including signal routing between die areas is described. In an embodiment, routing structures include signal lines with a characteristic thickness that is greater than a width. The signal lines may be twisted, and run directly underneath pads.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: February 26, 2019
    Assignee: Apple Inc.
    Inventors: Sanjay Dabral, David A. Secker, Huabo Chen, Zhenggang Cheng