Patents by Inventor Kaladhar Radhakrishnan

Kaladhar Radhakrishnan 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: 11955426
    Abstract: A microelectronics package comprising a substrate, the substrate comprising a dielectric and at least first and second conductor level within the dielectric, where the first and second conductor levels are separated by at least one dielectric layer. The microelectronics package comprises an inductor structure that comprises a magnetic core. The magnetic core is at least partially embedded within the dielectric. The inductor structure comprises a first trace in the first conductor level, a second trace in the second conductor level, and a via interconnect connecting the first and second traces. The first trace and the second trace extend at least partially within the magnetic core.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 9, 2024
    Assignee: Intel Corporation
    Inventors: Huong Do, Kaladhar Radhakrishnan, Krishna Bharath, Yikang Deng, Amruthavalli P. Alur
  • Patent number: 11916006
    Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a package substrate having a surface; a die having a first surface and an opposing second surface; and a chiplet having a first surface and an opposing second surface, wherein the chiplet is between the surface of the package substrate and the first surface of the die, wherein the first surface of the chiplet is coupled to the surface of the package substrate and the second surface of the chiplet is coupled to the first surface of the die, and wherein the chiplet includes: a capacitor at the first surface; and an element at the second surface, wherein the element includes a switching transistor or a diode.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 27, 2024
    Assignee: Intel Corporation
    Inventors: Adel A. Elsherbini, Kaladhar Radhakrishnan, Krishna Bharath, Shawna M. Liff, Johanna M. Swan
  • Publication number: 20240063183
    Abstract: Embodiments of a microelectronic assembly comprise: a plurality of layers of monolithic wafers and disaggregated integrated circuit (IC) dies, adjacent layers being coupled together by first interconnects having a pitch less than 10 micrometers between adjacent first interconnects, the disaggregated IC dies arranged with portions of the monolithic wafers into modular sub-assemblies; and a package substrate coupled to the modular sub-assemblies by second interconnects having a pitch greater than 10 micrometers between adjacent second interconnects. The disaggregated IC dies are surrounded laterally by a dielectric material, and the disaggregated IC dies are arranged with portions of the monolithic wafers such that a voltage regulator circuit in a first layer of the plurality of layers, a compute circuit in a second layer of the plurality of layers, and a memory circuit in a third layer of the plurality of layers are conductively coupled together in an intra-modular power delivery circuitry.
    Type: Application
    Filed: August 19, 2022
    Publication date: February 22, 2024
    Applicant: Intel Corporation
    Inventors: Adel A. Elsherbini, Kaladhar Radhakrishnan, Anne Augustine, Beomseok Choi, Kimin Jun, Omkar G. Karhade, Shawna M. Liff, Julien Sebot, Johanna M. Swan, Krishna Vasanth Valavala
  • Publication number: 20240063202
    Abstract: Embodiments of a microelectronic assembly comprise: a plurality of layers of IC dies in a dielectric material, adjacent layers in the plurality of layers being coupled together by first interconnects having a pitch of less than 10 micrometers between adjacent first interconnects; a package substrate coupled to a first side of the plurality of layers by second interconnects; a support structure coupled to a second side of the plurality of layers by third interconnects, the second side being opposite to the first side; and capacitors in at least the plurality of layers or the support structure. The capacitors are selected from at least planar capacitors, deep trench capacitors and via capacitors.
    Type: Application
    Filed: August 19, 2022
    Publication date: February 22, 2024
    Applicant: Intel Corporation
    Inventors: Adel A. Elsherbini, Thomas Sounart, Henning Braunisch, William J. Lambert, Kaladhar Radhakrishnan, Shawna M. Liff, Mohammad Enamul Kabir, Omkar G. Karhade, Kimin Jun, Johanna M. Swan
  • Patent number: 11830809
    Abstract: Disclosed herein are magnetic structures in integrated circuit (IC) package supports, as well as related methods and devices. For example, in some embodiments, an IC package support may include a conductive line, a magnetic structure around the conductive line, and material stubs at side faces of the magnetic structure.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 28, 2023
    Assignee: Intel Corporation
    Inventors: Ying Wang, Yikang Deng, Junnan Zhao, Andrew James Brown, Cheng Xu, Kaladhar Radhakrishnan
  • Publication number: 20230317706
    Abstract: Embodiments disclosed herein include electronic packages and methods of forming such electronic packages. In an embodiment, an electronic package comprises a package substrate, and a die on the package substrate. In an embodiment, the electronic package further comprises a voltage regulator on the package substrate adjacent to the die, and a metal printed circuit board (PCB) heat spreader. In an embodiment, a trace on the metal PCB heat spreader couples the die to the voltage regulator.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Kyle ARRINGTON, Kuang LIU, Bohan SHAN, Hongxia FENG, Don Douglas JOSEPHSON, Stephen MOREIN, Kaladhar RADHAKRISHNAN
  • Publication number: 20230307441
    Abstract: Embodiments disclosed herein include a coupled inductor. In an embodiment, the coupled inductor comprises a first inductor and a second inductor. In an embodiment, the first inductor can be coupled to the first inductor. In an embodiment, the coupled inductor further comprises a first switch coupled to the first inductor, where the first switch comprises gallium and nitrogen, and a second switch coupled to the second inductor, where the second switch comprises gallium and nitrogen.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 28, 2023
    Inventors: Ahmed ABOU-ALFOTOUH, Jonathan DOUGLAS, Alan WU, Nachiket Venkappayya DESAI, Han Wui THEN, Harish KRISHNAMURTHY, Kaladhar RADHAKRISHNAN, Sanka GANESAN, Krishnan RAVICHANDRAN
  • Patent number: 11735535
    Abstract: Embodiments include an inductor, a method to form the inductor, and a semiconductor package. An inductor includes a plurality of plated-through-hole (PTH) vias in a substrate layer, and a plurality of magnetic interconnects with a plurality of openings in the substrate layer. The openings of the magnetic interconnects surround the PTH vias. The inductor also includes an insulating layer in the substrate layer, a first conductive layer over the PTH vias, magnetic interconnects, and insulating layer, and a second conductive layer below the PTH vias, magnetic interconnects, and insulating layer. The insulating layer surrounds the PTH vias and magnetic interconnects. The magnetic interconnects may have a thickness substantially equal to a thickness of the PTH vias. The magnetic interconnects may be shaped as hollow cylindrical magnetic cores with magnetic materials. The magnetic materials may include ferroelectric, conductive, or epoxy materials. The hollow cylindrical magnetic cores may be ferroelectric cores.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: August 22, 2023
    Assignee: Intel Corporation
    Inventors: Kaladhar Radhakrishnan, Krishna Bharath, Clive Hendricks
  • Patent number: 11710720
    Abstract: A semiconductor package is provided, which includes a first die and a second die. The first die includes a first section of a power converter, and the second die includes a second section of the power converter. The power converter may include a plurality of switches, and a Power Management (PM) circuitry to control operation of the power converter by controlling switching of the plurality of switches. The PM circuitry may include a first part and a second part. The first section of the power converter in the first die may include the first part of the PM circuitry, and the second section of the power converter in the second die may include the second part of the PM circuitry.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 25, 2023
    Assignee: Intel Corporation
    Inventors: Beomseok Choi, Siddharth Kulasekaran, Kaladhar Radhakrishnan
  • Patent number: 11682613
    Abstract: The present disclosure is directed to systems and methods for improving the impedance matching of semiconductor package substrates by incorporating one or more magnetic build-up layers proximate relatively large diameter, relatively high capacitance, conductive pads formed on the lower surface of the semiconductor package substrate. The one or more magnetic layers may be formed using a magnetic build-up material deposited on the lower surface of the semiconductor package substrate. Vias conductively coupling the conductive pads to bump pads on the upper surface of the semiconductor package substrate pass through and are at least partially surrounded by the magnetic build-up material.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: June 20, 2023
    Assignee: Intel Corporation
    Inventors: Zhiguo Qian, Kaladhar Radhakrishnan, Kemal Aygun
  • Publication number: 20230189442
    Abstract: Embodiments disclosed herein include microelectronic boards and electronic systems. In an embodiment, a microelectronic board comprises aboard substrate, where the board substrate has a first thickness between a first surface and a second surface opposite from the first surface. In an embodiment, a recess is formed into the first surface of the board substrate, where the recess comprises a third surface between the first surface and the second surface. In an embodiment, the board substrate has a second thickness between the third surface and the second surface. In an embodiment, the microelectronic board further comprises a voltage regulator (VR) module attached to the third surface.
    Type: Application
    Filed: September 16, 2020
    Publication date: June 15, 2023
    Inventors: Kaladhar RADHAKRISHNAN, Wei SHEN
  • Patent number: 11676950
    Abstract: An apparatus is provided which comprises: a plurality of plated through holes; a material with magnetic properties adjacent to the plurality of plated through holes; and one or more conductors orthogonal to a length of the plurality of plated through holes, the one or more conductors to couple one plated through hole of the plurality with another plated through hole of the plurality such that an inductor is formed.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 13, 2023
    Assignee: Intel Corporation
    Inventors: Krishna Bharath, Sriram Srinivasan, Amruthavalli Alur, Kaladhar Radhakrishnan, Huong Do, William Lambert
  • Publication number: 20230095063
    Abstract: In one embodiment, an apparatus includes a first die with voltage regulator circuitry and a second die with logic circuitry. The apparatus further includes an inductor, a capacitor, and a conformal power delivery structure on the top side of the apparatus, where the voltage regulator circuitry is connected to the logic circuitry through the inductor, the capacitor, and the conformal power delivery structure. The conformal power delivery structure includes a first electrically conductive layer defining one or more recesses, a second electrically conductive layer at least partially within the recesses of the first electrically conductive layer and having a lower surface that generally conforms with the upper surface of the first electrically conductive layer, and a dielectric material between the surfaces of the first electrically conductive layer and the second electrically conductive layer that conform with one another.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Applicant: Intel Corporation
    Inventors: Beomseok Choi, William J. Lambert, Krishna Bharath, Kaladhar Radhakrishnan, Adel Elsherbini, Henning Braunisch, Stephen Morein, Aleksandar Aleksov, Feras Eid
  • Publication number: 20230097714
    Abstract: In one embodiment, a base die apparatus includes a conformal power delivery structure comprising a first electrically conductive layer defining one or more recesses, and a second electrically conductive layer at least partially within the recesses of the first electrically conductive layer and having a lower surface that generally conforms with the upper surface of the first electrically conductive layer. The conformal power delivery structure also includes a dielectric material between the surfaces of the first electrically conductive layer and the second electrically conductive layer that conform with one another. The conformal power delivery structure may be connected to connection pads of the base die apparatus, e.g., to provide power delivery to integrated circuit (IC) chips connected to the base die apparatus. The base die apparatus also includes bridge circuitry to connect IC chips with one another.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Applicant: Intel Corporation
    Inventors: William J. Lambert, Beomseok Choi, Krishna Bharath, Kaladhar Radhakrishnan, Adel Elsherbini
  • Publication number: 20230096368
    Abstract: An inductor structure, a package substrate, an integrated circuit device, an integrated circuit device assembly and a method of fabricating the inductor structure. The inductor structure includes: an electrically conductive body; and a magnetic structure including a non-electrically-conductive magnetic material, wherein: one of the magnetic structure or the electrically conductive body wraps around another one of the magnetic structure or the electrically conductive body to form the inductor structure therewith; and at least one of the electrically conductive body or the magnetic structure has a granular microstructure including randomly distributed particles presenting substantially non-linear particle-to-particle boundaries with one another.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Applicant: Intel Corporation
    Inventors: Aleksandar Aleksov, Adel Elsherbini, Johanna Swan, Feras Eid, Thomas L. Sounart, Henning Braunisch, Beomseok Choi, Krishna Bharath, Kaladhar Radhakrishnan, William J. Lambert
  • Publication number: 20230095608
    Abstract: A embedded passive structure, a microelectronic system, and an integrated circuit device assembly, and a method of forming the embedded passive structure. The embedded passive structure includes a base layer; a passive device attached to the base layer; a first power plane comprising metal and adjacent an upper surface of the base layer, the first power plane having a portion electrically coupled to a terminal of the passive device, wherein an upper surface of a combination of the first power plane and the passive device defines a recess; a second power plane comprising metal, the second power plane at least partially within the recess and having a lower surface that conforms with the upper surface of the combination; and a liner including a dielectric layer between the first power plane and the second power plane.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Applicant: Intel Corporation
    Inventors: Adel Elsherbini, Aleksandar Aleksov, Feras Eid, Henning Braunisch, Thomas L. Sounart, Johanna Swan, Beomseok Choi, Krishna Bharath, William J. Lambert, Kaladhar Radhakrishnan
  • Publication number: 20230089093
    Abstract: Embodiments disclosed herein include electronic packages and methods of assembling such electronic packages. In an embodiment, an electronic package comprises a core, where the core comprises glass. In an embodiment, a plug is formed through the core, where the plug comprises a magnetic material. In an embodiment, an inductor is around the plug. In an embodiment, first layers are over the core, wherein where the first layers comprise a dielectric material; and second layers are under the core, where the second layers comprise the dielectric material.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: Srinivas V. PIETAMBARAM, Tarek A. IBRAHIM, Krishna BHARATH, Bharat PENMECHA, Anderw COLLINS, Kaladhar RADHAKRISHNAN, Sriram SRINIVASAN
  • Publication number: 20230068300
    Abstract: A microelectronic assembly is provided, comprising a first IC die having an electrical load circuit, a second IC die having a portion of a voltage regulator (VR) electrically coupled to the first IC die, a package substrate having inductors of the VR electrically coupled to the first IC die and the second IC die, and a mold compound between the first IC die and the package substrate. The VR receives power at a first voltage from the package substrate and provides power at a second voltage to the electrical load circuit, the second voltage being lower than the first voltage. In various embodiments, the second IC die is in the mold compound. In some embodiments, the mold compound and the second IC die are comprised in a discrete interposer electrically coupled to the first IC die with die-to-die interconnects and to the package substrate with die-to-package substrate interconnects.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Applicant: INTEL CORPORATION
    Inventors: Krishna Bharath, William J. Lambert, Christopher Schaef, Alexander Lyakhov, Kaladhar Radhakrishnan, Sriram Srinivasan
  • Publication number: 20230060727
    Abstract: A microelectronic assembly is provided comprising a first integrated circuit (IC) die having an electrical load circuit, a second IC die having a portion of a voltage regulator (VR), and a third IC die comprising inductors of the VR. The third IC die is between the first IC die and the second IC die, and the VR receives power at a first voltage and provides power at a second voltage to the electrical load circuit, the second voltage being lower than the first voltage. In various embodiments, the inductors in the third IC die comprise magnetic thin films. The third IC die may be a passive die without any active elements in some embodiments. In some embodiments, the microelectronic assembly further comprises a package substrate having conductive pathways, and the second IC die is between the third IC die and the package substrate.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Applicant: Intel Corporation
    Inventors: Kaladhar Radhakrishnan, Krishna Bharath, William J. Lambert, Adel A. Elsherbini, Sriram Srinivasan, Christopher Schaef
  • Publication number: 20220406701
    Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a package substrate having a surface; a die having a first surface and an opposing second surface; and a chiplet having a first surface and an opposing second surface, wherein the chiplet is between the surface of the package substrate and the first surface of the die, wherein the first surface of the chiplet is coupled to the surface of the package substrate and the second surface of the chiplet is coupled to the first surface of the die, and wherein the chiplet includes: a capacitor at the first surface; and an element at the second surface, wherein the element includes a switching transistor or a diode.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 22, 2022
    Applicant: Intel Corporation
    Inventors: Adel A. Elsherbini, Kaladhar Radhakrishnan, Krishna Bharath, Shawna M. Liff, Johanna M. Swan