Patents by Inventor Jae Kyu Cho

Jae Kyu Cho 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: 20250096142
    Abstract: Structures including an electro-optic bridge chip and methods of forming such structures. The structure comprises a photonics chip and an electro-optic bridge chip on a package substrate. The electro-optic bridge chip includes a waveguide core and an electrical trace line. A portion of the waveguide core is coupled to an optical coupler of the photonics chip.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 20, 2025
    Inventor: Jae Kyu Cho
  • Publication number: 20250076575
    Abstract: Structures for a co-packaged photonics chip and electronic chip, and associated methods. The structure comprises a layer comprising a molding compound, an electronic chip and a photonics chip affixed in the layer, and a waveguiding structure including a waveguide core adjacent to the photonics chip. The photonics chip includes an optical coupler, the waveguide core includes a portion that overlaps with the optical coupler, and the waveguide core comprises a polymer.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 6, 2025
    Inventors: Jae Kyu Cho, Norman Robson
  • Patent number: 11804452
    Abstract: A photonic integrated circuit (PIC) structure includes an active region in at least an active layer over a substrate, the active region including a plurality of transistors therein. A plurality of dielectric interconnect layers are over the active region, and an opening is defined through the plurality of dielectric interconnect layers. The opening extends to at least the active layer. A barrier is within the plurality of dielectric interconnect layers and surrounding the opening. An optical element is positioned in the opening. The barrier prevents stress damage, such as cracks and/or delaminations, from propagating from or to the opening, and maintains the hermetic seal of the PIC structure.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: October 31, 2023
    Assignee: GLOBALFOUNDRIES U.S. Inc.
    Inventors: Nicholas A Polomoff, Jae Kyu Cho, Mohamed Rabie, Yunyao Jiang, Koushik Ramachandran, Pallabi Das
  • Patent number: 11740418
    Abstract: Embodiments of the disclosure provide a photonic integrated circuit (PIC) structure with a passage for a waveguide through a barrier structure. The PIC structure includes a barrier structure on a substrate, having a first sidewall and a second sidewall opposite the first sidewall. A passage is within the barrier structure, and extends from a first end at the first sidewall of the barrier structure to a second end at the second sidewall of the barrier structure. A shape of the passage includes a reversal segment between the first end and the second end. A waveguide within the passage and extends from the first end to the second end of the barrier structure.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: August 29, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Nicholas A. Polomoff, John J. Ellis-Monaghan, Frank G. Kuechenmeister, Jae Kyu Cho, Michal Rakowski
  • Publication number: 20230030723
    Abstract: A photonic integrated circuit (PIC) structure includes an active region in at least an active layer over a substrate, the active region including a plurality of transistors therein. A plurality of dielectric interconnect layers are over the active region, and an opening is defined through the plurality of dielectric interconnect layers. The opening extends to at least the active layer. A barrier is within the plurality of dielectric interconnect layers and surrounding the opening. An optical element is positioned in the opening. The barrier prevents stress damage, such as cracks and/or delaminations, from propagating from or to the opening, and maintains the hermetic seal of the PIC structure.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Mohamed Rabie, Yunyao Jiang, Koushik Ramachandran, Pallabi Das
  • Patent number: 11569180
    Abstract: Structures for an optical fiber groove and methods of forming a structure for an optical fiber groove. A photonics chip includes a substrate and an interconnect structure over the substrate. The photonics chip has a first exterior corner, a second exterior corner, and a side edge extending from the first exterior corner to the second exterior corner. The substrate includes a groove positioned along the side edge between the first exterior corner and the second exterior corner. The groove is arranged to intersect the side edge at a groove corner, and the interconnect structure includes metal structures adjacent to the first groove corner. The metal structures extend diagonally in the interconnect structure relative to the side edge of the photonics chip.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: January 31, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Mohamed A. Rabie, Andreas D. Stricker
  • Patent number: 11543606
    Abstract: Structures including an edge coupler and a crackstop, as well as methods of forming a structure including an edge coupler and a crackstop. A waveguide core and a crackstop are located over a top surface of a dielectric layer. A communication passageway is either optically coupled or electrically coupled to the waveguide core. The communication passageway, which may include an electric conductor or a buried waveguide core, extends laterally beneath the crackstop.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: January 3, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Frank Kuechenmeister, John J. Ellis-Monaghan, Michal Rakowski
  • Publication number: 20220308297
    Abstract: Embodiments of the disclosure provide a photonic integrated circuit (PIC) structure with a passage for a waveguide through a barrier structure. The PIC structure includes a barrier structure on a substrate, having a first sidewall and a second sidewall opposite the first sidewall. A passage is within the barrier structure, and extends from a first end at the first sidewall of the barrier structure to a second end at the second sidewall of the barrier structure. A shape of the passage includes a reversal segment between the first end and the second end. A waveguide within the passage and extends from the first end to the second end of the barrier structure.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 29, 2022
    Inventors: Nicholas A. Polomoff, John J. Ellis-Monaghan, Frank G. Kuechenmeister, Jae Kyu Cho, Michal Rakowski
  • Publication number: 20220291464
    Abstract: Structures including an edge coupler and a crackstop, as well as methods of forming a structure including an edge coupler and a crackstop. A waveguide core and a crackstop are located over a top surface of a dielectric layer. A communication passageway is either optically coupled or electrically coupled to the waveguide core. The communication passageway, which may include an electric conductor or a buried waveguide core, extends laterally beneath the crackstop.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 15, 2022
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Frank Kuechenmeister, John J. Ellis-Monaghan, Michal Rakowski
  • Publication number: 20210375788
    Abstract: Structures for an optical fiber groove and methods of forming a structure for an optical fiber groove. A photonics chip includes a substrate and an interconnect structure over the substrate. The photonics chip has a first exterior corner, a second exterior corner, and a side edge extending from the first exterior corner to the second exterior corner. The substrate includes a groove positioned along the side edge between the first exterior corner and the second exterior corner. The groove is arranged to intersect the side edge at a groove corner, and the interconnect structure includes metal structures adjacent to the first groove corner. The metal structures extend diagonally in the interconnect structure relative to the side edge of the photonics chip.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 2, 2021
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Mohamed A. Rabie, Andreas D. Stricker
  • Patent number: 11145606
    Abstract: Structures for an optical fiber groove and methods of forming a structure for an optical fiber groove. A photonics chip includes a substrate and an interconnect structure over the substrate. The photonics chip has a first exterior corner, a second exterior corner, and a side edge extending from the first exterior corner to the second exterior corner. The substrate includes a groove positioned along the side edge between the first exterior corner and the second exterior corner. The groove is arranged to intersect the side edge at a groove corner, and the interconnect structure includes metal structures adjacent to the first groove corner. The metal structures extend diagonally in the interconnect structure relative to the side edge of the photonics chip.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 12, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Mohamed A. Rabie, Andreas D. Stricker
  • Publication number: 20210305172
    Abstract: Structures for an optical fiber groove and methods of forming a structure for an optical fiber groove. A photonics chip includes a substrate and an interconnect structure over the substrate. The photonics chip has a first exterior corner, a second exterior corner, and a side edge extending from the first exterior corner to the second exterior corner. The substrate includes a groove positioned along the side edge between the first exterior corner and the second exterior corner. The groove is arranged to intersect the side edge at a groove corner, and the interconnect structure includes metal structures adjacent to the first groove corner. The metal structures extend diagonally in the interconnect structure relative to the side edge of the photonics chip.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Mohamed A. Rabie, Andreas D. Stricker
  • Patent number: 9903727
    Abstract: A method for providing a geo-fence service using a map provided via a navigation device includes: searching for at least one critical route from a current position of a vehicle or an origin to a destination mapped onto the map; displaying a first critical route onto the map along the vehicle can travel to the destination, the first critical route corresponding to a shortest route among the at least one searched critical route; and determining whether the vehicle deviates from a geo-fence area including the at least one searched critical route.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: February 27, 2018
    Assignee: Hyundai Motor Company
    Inventors: Jae Kyu Cho, Nam Joon Kim
  • Publication number: 20170108346
    Abstract: A method for providing a geo-fence service using a map provided via a navigation device includes: searching for at least one critical route from a current position of a vehicle or an origin to a destination mapped onto the map; displaying a first critical route onto the map along the vehicle can travel to the destination, the first critical route corresponding to a shortest route among the at least one searched critical route; and determining whether the vehicle deviates from a geo-fence area including the at least one searched critical route.
    Type: Application
    Filed: December 10, 2015
    Publication date: April 20, 2017
    Inventors: Jae Kyu Cho, Nam Joon Kim
  • Patent number: 9472509
    Abstract: Methods for forming a dummy metal structure between dies on a semiconductor wafer and the resulting devices are disclosed. Embodiments may include forming metal interconnection layers extending from a substrate of a semiconductor wafer to a top metal interconnection layer of the semiconductor wafer between a plurality of die regions, each of the metal interconnection layers including a plurality of dummy vertical interconnect accesses (VIAs) and a plurality of dummy metal lines, with the plurality of dummy metal lines laterally connecting the plurality of dummy VIAs within each respective metal interconnection layer, and a plurality of dummy VIAs within a first metal interconnection layer vertically connecting a plurality of dummy metal lines within the first metal interconnection layer to a plurality of dummy metal lines within a second metal interconnection layer, and the second metal interconnection layer being below the first metal interconnection layer.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: October 18, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Jae Kyu Cho, Shan Gao
  • Publication number: 20160254234
    Abstract: Methods for forming a dummy metal structure between dies on a semiconductor wafer and the resulting devices are disclosed. Embodiments may include forming metal interconnection layers extending from a substrate of a semiconductor wafer to a top metal interconnection layer of the semiconductor wafer between a plurality of die regions, each of the metal interconnection layers including a plurality of dummy vertical interconnect accesses (VIAs) and a plurality of dummy metal lines, with the plurality of dummy metal lines laterally connecting the plurality of dummy VIAs within each respective metal interconnection layer, and a plurality of dummy VIAs within a first metal interconnection layer vertically connecting a plurality of dummy metal lines within the first metal interconnection layer to a plurality of dummy metal lines within a second metal interconnection layer, and the second metal interconnection layer being below the first metal interconnection layer.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 1, 2016
    Inventors: Jae Kyu CHO, Shan GAO
  • Patent number: 9406608
    Abstract: Methods for forming a dummy metal structure between dies on a semiconductor wafer and the resulting devices are disclosed. Embodiments may include forming metal interconnection layers extending from a substrate of a semiconductor wafer to a top metal interconnection layer of the semiconductor wafer between a plurality of die regions, each of the metal interconnection layers including a plurality of dummy vertical interconnect accesses (VIAs) and a plurality of dummy metal lines, with the plurality of dummy metal lines laterally connecting the plurality of dummy VIAs within each respective metal interconnection layer, and a plurality of dummy VIAs within a first metal interconnection layer vertically connecting a plurality of dummy metal lines within the first metal interconnection layer to a plurality of dummy metal lines within a second metal interconnection layer, and the second metal interconnection layer being below the first metal interconnection layer.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 2, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Jae Kyu Cho, Shan Gao
  • Publication number: 20160111360
    Abstract: Methods for forming a dummy metal structure between dies on a semiconductor wafer and the resulting devices are disclosed. Embodiments may include forming metal interconnection layers extending from a substrate of a semiconductor wafer to a top metal interconnection layer of the semiconductor wafer between a plurality of die regions, each of the metal interconnection layers including a plurality of dummy vertical interconnect accesses (VIAs) and a plurality of dummy metal lines, with the plurality of dummy metal lines laterally connecting the plurality of dummy VIAs within each respective metal interconnection layer, and a plurality of dummy VIAs within a first metal interconnection layer vertically connecting a plurality of dummy metal lines within the first metal interconnection layer to a plurality of dummy metal lines within a second metal interconnection layer, and the second metal interconnection layer being below the first metal interconnection layer.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 21, 2016
    Inventors: Jae Kyu CHO, Shan GAO
  • Publication number: 20150221527
    Abstract: Compositions that have relatively high Tg, relatively low CTE, and relatively low modulus are suitable for use as encapsulants with stress-sensitive electronic assemblies, such as those containing low k dielectrics. These compositions are used in methods of die attachment, encapsulation, and solder bump reinforcement.
    Type: Application
    Filed: January 26, 2015
    Publication date: August 6, 2015
    Inventors: Paul L. MORGANELLI, Jae-Kyu CHO, Jenna M. CORDERO
  • Publication number: 20100146577
    Abstract: The present invention relates to a digital multimedia broadcasting reception system and method, and in particular to, a technology for transmitting a digital multimedia broadcasting signal received in a tuner to a head unit without a compression process.
    Type: Application
    Filed: August 4, 2009
    Publication date: June 10, 2010
    Applicant: HYUNDAI MOTOR COMPANY
    Inventor: Jae Kyu Cho