Patents by Inventor John Knickerbocker

John Knickerbocker 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: 20260150629
    Abstract: A semiconductor structure includes a back-end-of-line region including a first level of metal interconnects and a second level of metal interconnects separated by at least one interlayer dielectric layer, and a laser debonding test structure disposed in the back-end-of-line region. The laser debonding test structure includes a testable metal plate layer disposed within the at least one interlayer dielectric layer between the first level of metal interconnects and the second level of metal interconnects, a set of test pads, and a set of vias, at least a subset of the set of vias extending from at least one test pad in the set of test pads to the testable metal plate layer disposed within the at least one interlayer dielectric layer between the first level of metal interconnects and the second level of metal interconnects.
    Type: Application
    Filed: November 22, 2024
    Publication date: May 28, 2026
    Inventors: Qianwen Chen, Joshua Mark Rubin, Nicholas Alexander Polomoff, John Knickerbocker
  • Publication number: 20260147169
    Abstract: A co-package optics structure is provided including a channel waveguide located in a glass substrate in which gradient period grating structures are located around the waveguide. Notably, the gradient period grating structures are located above, below and adjacent to each side of the waveguide. The waveguide and the gradient period grating structures are formed in the glass substrate using a laser which causes a change of the refractive index of the glass substrate in the areas in which laser exposure occurs.
    Type: Application
    Filed: November 22, 2024
    Publication date: May 28, 2026
    Inventors: Neng Liu, Hsianghan Hsu, Qianwen Chen, John Knickerbocker
  • Publication number: 20260147170
    Abstract: Co-packaged optical modules having high bandwidth density, low insertion loss, and solder reflow and reliability stress compatibility are provided. In one aspect, an optical module includes: a photonic integrated circuit attached to a substrate; a lid in direct contact with the substrate such that the photonic integrated circuit is present in between the substrate and the lid; optical waveguides attached to the photonic integrated circuit; and a ferrule attached to the optical waveguides. The lid can be present over the photonic integrated circuit, and directly contacts a top of the substrate. Conversely, the lid can be present below the photonic integrated circuit, and directly contacts a bottom of the substrate.
    Type: Application
    Filed: November 28, 2024
    Publication date: May 28, 2026
    Inventors: John Knickerbocker, Akihiro Horibe, Hsianghan Hsu, Neng Liu, Adrian Paz Ramos, Jean Benoit Heroux, Qianwen Chen, Sayuri Hada, CHINAMI ISHIKAWA, Yoichi Taira
  • Publication number: 20260140307
    Abstract: A semiconductor structure includes a substrate, one or more electrical interconnects disposed in through-substrate vias extending vertically from an upper surface of the substrate to a lower surface of the substrate, one or more optical interconnects embedded in the substrate between the upper surface of the substrate and the lower surface of the substrate, and one or more optical connector pin holes extending from at least one side of the substrate between the upper surface of the substrate and the lower surface of the substrate.
    Type: Application
    Filed: November 19, 2024
    Publication date: May 21, 2026
    Inventors: John Lucas Darling, Qianwen Chen, Hsianghan Hsu, Neng Liu, John Knickerbocker
  • Publication number: 20260140322
    Abstract: A semiconductor device includes a micro-ring resonator including a semiconductor ring having a heater portion and a modulator portion integrally formed therein, wherein the semiconductor ring includes a central portion and extended portions radially inside and radially outside the central portion, the extended portions being thinner than the central portion. Contacts connect to the extended portions of the heater portion and the modulator portion on a top and a bottom of the extended portions.
    Type: Application
    Filed: November 20, 2024
    Publication date: May 21, 2026
    Inventors: Neng Liu, Hsianghan Hsu, Qianwen Chen, John Knickerbocker
  • Publication number: 20260140318
    Abstract: A semiconductor device includes a first doped region of a first conductivity type and a second doped region of a second conductivity type different from the first conductivity type. A fusion bonded insulating layer is disposed between the first doped region and the second doped region, wherein the fusion bonded insulating layer forms a tuned depletion layer disposed between the first doped region and the second doped region to form a P-I-N junction.
    Type: Application
    Filed: November 21, 2024
    Publication date: May 21, 2026
    Inventors: Qianwen Chen, Neng Liu, Hsianghan Hsu, John Knickerbocker
  • Publication number: 20260114272
    Abstract: An apparatus including a substrate having a first surface, and a silicon interposer including a first surface and a second surface, wherein the first surface is connected to the first surface of the substrate. The apparatus also includes at least one stack including an artificial intelligence (AI) chiplet and a plurality of static random-access memories (SRAMs) stacked below the AI chiplet, wherein the at least one stack includes a top surface, a bottom surface, a first side surface and a second side surface, and the at least one stack is orthogonally attached by the first side surface to the second surface of the silicon interposer. The apparatus additionally includes a heat spreader surrounding the top surface, the bottom surface and the second side surface of the at least one stack.
    Type: Application
    Filed: October 23, 2024
    Publication date: April 23, 2026
    Inventors: John Knickerbocker, Mukta Ghate Farooq, John W. Golz, Keiji Matsumoto
  • Publication number: 20260107806
    Abstract: A semiconductor device includes a package substrate below a chip, the package substrate including upper build-up layer including a first plurality of power planes (VDD) and ground planes (GND) and a plurality of vias stacked vertically, a core layer, and lower build-up layers including a second plurality of VDD and GND, and a heat spreader layer over the chip. The heat spreader contacts the package substrate on both ends of the package substrate.
    Type: Application
    Filed: October 16, 2024
    Publication date: April 16, 2026
    Inventors: Keiji Matsumoto, John Knickerbocker, Mukta Ghate Farooq, Todd Edward Takken, John W. Golz
  • Patent number: 12568846
    Abstract: A semiconductor structure includes a first back-end-of-line region coupled to a first side of a front-end-of-line region, a second back-end-of-line region coupled to a second side of the front-end-of-line region, and a thermally conducting region at least partially surrounding a perimeter of the front-end-of-line region, the first back-end-of-line region and the second back-end-of-line region.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: March 3, 2026
    Assignee: International Business Machines Corporation
    Inventors: Mukta Ghate Farooq, Keiji Matsumoto, John Knickerbocker
  • Publication number: 20260047484
    Abstract: An exemplary interconnect structure includes a first substrate, a second substrate vertically below the first substrate; and an underlayer structure between and in contact with the first and second substrates in which the underlayer structure between and in contact with the first and second substrates, a conductive connector between and electrically connecting the first and second substrates. The underlayer structure comprises an electromagnetic curable layer and a high thermal conductive layer and the underlayer structure laterally surrounds the conductive connector.
    Type: Application
    Filed: August 8, 2024
    Publication date: February 12, 2026
    Inventors: John Knickerbocker, Katsuyuki Sakuma, Qianwen Chen
  • Publication number: 20260005206
    Abstract: An apparatus including a plurality of vertically oriented insulating substrates, each substrate having a planar surface including a looped metal coil structure forming a planar inductor. Each of the substrates and formed planar inductors arranged in parallel and oriented vertically and adjacent each other in a series configuration for increased inductance. The formed inductor and substrate disposed vertically with respect to a horizontal axis and is inclined at an angle with respect to a vertical axis, the angle ranging between less than 90 degrees and greater than 0 degrees. A first magnetic material plate is disposed adjacent the planar inductor at a first planar surface of the substrate, and a second magnetic material plate disposed adjacent a second planar surface having a conductive trace connecting one end of the planar inductor, each first and second plate extending to limit a spatial extent of the magnetic fields created by the inductor.
    Type: Application
    Filed: June 27, 2024
    Publication date: January 1, 2026
    Inventors: John W. Golz, John Knickerbocker, Mukta Ghate Farooq, Todd Edward Takken, Keiji Matsumoto
  • Publication number: 20260005139
    Abstract: Structures including semiconductor chips (including chiplets and stacked chips/chiplets) are provided in which thermal heat removal is enhanced. The enhanced thermal heat removal is provided by utilizing interlayer dielectric (ILD) materials in at least one of the frontside back-end-of-the-line (BEOL) structure or the backside BEOL structure that have a high thermal conductivity.
    Type: Application
    Filed: June 27, 2024
    Publication date: January 1, 2026
    Inventors: John Knickerbocker, John W Golz, Keiji Matsumoto, Mukta Ghate Farooq
  • Publication number: 20260005097
    Abstract: Semiconductor structures are provided in which heat spreading and thermal heat removal are improved by providing one or more heat removal paths in which heat spreading and thermal heat removal occurs leveraging horizontal direction and vertical directions and through reduced resistance of heat removal paths. Notably, heat is spread horizontally to the edges of the semiconductor structures and then the heat is removed vertically (up and/or down) from the semiconductor structures.
    Type: Application
    Filed: June 27, 2024
    Publication date: January 1, 2026
    Inventors: John Knickerbocker, Keiji Matsumoto, Aakrati Jain, Prabudhya Roy Chowdhury
  • Publication number: 20250383398
    Abstract: A semiconductor testing device includes a test head including one or more probe heads, and one or more electrical connectors, a heating/cooling unit configured to spread and remove heat within at least one device of one or more devices under test, a handler wafer, and a fixture configured to support the handler wafer. The semiconductor testing device is configured to power up at least one device of the one or more devices under test during testing.
    Type: Application
    Filed: June 17, 2024
    Publication date: December 18, 2025
    Inventors: John Knickerbocker, Mark Christopher Johnson, Pablo Nieves, Ishtiaq Ahsan
  • Publication number: 20250385140
    Abstract: A semiconductor device is provided for executing S-parameter testing. The semiconductor device includes a first layer comprising a device under test (DUT), a second layer including metallization, a third layer including a backside power distribution network (BSPDN), a signal pad and a connecting structure connecting the DUT to the signal pad via the metallization. The connecting structure includes a first connecting section by which the DUT is connected to the metallization and a second connecting section that extends from the metallization, through the first layer and through the third layer to the signal pad and by which the metallization is connected to the signal pad.
    Type: Application
    Filed: June 13, 2024
    Publication date: December 18, 2025
    Inventors: Huimei Zhou, Chen Zhang, Miaomiao Wang, John Knickerbocker, Huiming Bu
  • Publication number: 20250383397
    Abstract: A testing device includes N devices, and N?1 probe heads. N is an integer. An M-th probe head includes devices 1 to N-M electrically connected to each other. The M-th probe head is configured to test the M-th device, and M is an integer between 1 and N?1.
    Type: Application
    Filed: June 17, 2024
    Publication date: December 18, 2025
    Inventors: John Knickerbocker, Pablo Nieves, Ishtiaq Ahsan, Mark Christopher Johnson
  • Publication number: 20250370184
    Abstract: A semiconductor optical waveguide is provided. The semiconductor optical waveguide has a semiconductor substrate. The semiconductor substrate defines opposing top and bottom surfaces, and an optical TSV extending substantially perpendicular to the top and bottom surfaces. The semiconductor waveguide further includes a waveguide optical circuit on the semiconductor substrate and optically connected to the optical TSV.
    Type: Application
    Filed: May 29, 2024
    Publication date: December 4, 2025
    Inventors: Hsianghan Hsu, Qianwen Chen, Neng Liu, John Knickerbocker
  • Publication number: 20250372956
    Abstract: A photonic device is provided and includes a waveguide, a p-n junction disposed on the waveguide, a first contact and a second contact. The p-n junction includes a quantum well between an upper portion doped with a first dopant and a lower portion doped with a second dopant. The first contact is doped with the first dopant and is disposed in contact with the upper portion. The second contact is doped with the second dopant and includes a first lead and a second lead. The first lead extends through a first side of the waveguide and terminates at a corresponding first side of the lower portion. The second lead extends through a second side of the waveguide and terminates at a corresponding second side of the lower portion.
    Type: Application
    Filed: June 4, 2024
    Publication date: December 4, 2025
    Inventors: Neng Liu, Hsianghan Hsu, Qianwen Chen, John Knickerbocker
  • Publication number: 20250372463
    Abstract: A semiconductor test structure includes a first surface comprising a plurality of first conductive contacts spaced apart from each other at a first pitch, and a second surface located opposite the first surface and comprising a plurality of second conductive contacts spaced apart from each other at a second pitch. The second pitch is less than the first pitch, and respective ones of the plurality of first conductive contacts are electrically connected to one or more respective ones of the plurality of second conductive contacts.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 4, 2025
    Inventors: Mark Christopher Johnson, John Knickerbocker, Ishtiaq Ahsan, Pablo Nieves
  • Publication number: 20250372476
    Abstract: A semiconductor package includes a substrate such as an organic laminate substrate having conductors for carrying signals and includes an integrated circuit (IC) chip, e.g., a 3-dimensional flip-chip IC stack mounted thereon. The flip-chip is electrically connected to exposed conductors at the organic laminate substrate for receiving power signals and ground therefrom. A thermally conductive heat spreader with a redistribution layer (RDL) of high thermal conductive material for power delivery and heat spreading is connected to a top surface of the IC chip. In an example, the RDL can electrically connect with the laminate below the chip and at the peripheral of the chip. The thermally conductive heat spreader structure is disposed on top the RDL layer for receiving, distributing and dissipating heat from a top surface of the RDL. The package enables improved power delivery, heat spreading and heat removal from a top side of the IC chip.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 4, 2025
    Inventors: John Knickerbocker, Mukta Ghate Farooq, Keiji Matsumoto, John W. Golz