Patents by Inventor Erwin Cohen

Erwin Cohen 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: 12315836
    Abstract: A semiconductor chip comprises a substrate, a die attach material, and a die. The substrate comprises an upper surface and a lower surface opposing the upper surface. The die attach material is on the upper surface of the substrate. The die comprises a bottom surface bonded to the upper surface of the substrate by the die attach material, a top surface opposing the bottom surface, and a side wall adjacent to the top surface and the bottom surface. A shortest distance across an exterior of the side wall from the bottom surface to the top surface defines an exterior surface distance. The die further comprises a die height measured from where the side wall meets the bottom surface to where the side wall meets the top surface. The exterior surface distance is longer than the die height.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: May 27, 2025
    Assignee: Wolfspeed, Inc.
    Inventors: Dan Namishia, Mitch Flowers, Eng Wah Woo, Erwin Cohen
  • Publication number: 20240079320
    Abstract: A package includes a circuit that includes at least one active area and at least one secondary device area, a support configured to support the circuit, and a die attach material. The circuit being mounted on the support using the die attach material and the die attach material including at least one channel configured to allow gases generated during curing of the die attach material to be released from the die attach material.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 7, 2024
    Inventors: Mitch FLOWERS, Erwin COHEN, Alexander KOMPOSCH, Larry Christopher WALL
  • Patent number: 11830810
    Abstract: A package includes a circuit that includes at least one active area and at least one secondary device area, a support configured to support the circuit, and a die attach material. The circuit being mounted on the support using the die attach material and the die attach material including at least one channel configured to allow gases generated during curing of the die attach material to be released from the die attach material.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 28, 2023
    Assignee: WOLFSPEED, INC.
    Inventors: Mitch Flowers, Erwin Cohen, Alexander Komposch, Larry Christopher Wall
  • Publication number: 20230215833
    Abstract: A semiconductor chip comprises a substrate, a die attach material, and a die. The substrate comprises an upper surface and a lower surface opposing the upper surface. The die attach material is on the upper surface of the substrate. The die comprises a bottom surface bonded to the upper surface of the substrate by the die attach material, a top surface opposing the bottom surface, and a side wall adjacent to the top surface and the bottom surface. A shortest distance across an exterior of the side wall from the bottom surface to the top surface defines an exterior surface distance. The die further comprises a die height measured from where the side wall meets the bottom surface to where the side wall meets the top surface. The exterior surface distance is longer than the die height.
    Type: Application
    Filed: January 3, 2022
    Publication date: July 6, 2023
    Inventors: Dan Namishia, Mitch Flowers, Eng Wah Woo, Erwin Cohen
  • Patent number: 11424177
    Abstract: A package includes an integrated circuit that includes at least one active area and at least one secondary device area, a support configured to support the integrated circuit, and a die attach material. The integrated circuit being mounted on the support using the die attach material and the die attach material including at least one channel configured to allow gases generated during curing of the die attach material to be released from the die attach material.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: August 23, 2022
    Assignee: WOLFSPEED, INC.
    Inventors: Mitch Flowers, Erwin Cohen, Alexander Komposch
  • Publication number: 20210351121
    Abstract: A package includes a circuit that includes at least one active area and at least one secondary device area, a support configured to support the circuit, and a die attach material. The circuit being mounted on the support using the die attach material and the die attach material including at least one channel configured to allow gases generated during curing of the die attach material to be released from the die attach material.
    Type: Application
    Filed: October 30, 2020
    Publication date: November 11, 2021
    Inventors: Mitch Flowers, Erwin Cohen, Alexander Komposch, Larry Christopher Wall
  • Publication number: 20210351113
    Abstract: A package includes an integrated circuit that includes at least one active area and at least one secondary device area, a support configured to support the integrated circuit, and a die attach material. The integrated circuit being mounted on the support using the die attach material and the die attach material including at least one channel configured to allow gases generated during curing of the die attach material to be released from the die attach material.
    Type: Application
    Filed: May 7, 2020
    Publication date: November 11, 2021
    Inventors: Mitch Flowers, Erwin Cohen, Alexander Komposch
  • Patent number: 10886198
    Abstract: A device comprises a base, a die, leads, and an electrically-insulating die housing covering the die. The base comprises a die mounting section in which the die is mounted. The leads extend away from the die mounting section and are electrically connected to the die. The base further comprises a base mounting section and a recessed section. The recessed section comprises a recess between the die mounting section and the base mounting section. The base further comprises a first side, a second side opposing the first side, and a thickness measured between the first and second sides. The thickness of the base throughout the recessed section is less than the thickness of the base throughout the base mounting section. The base further comprises an opening extending at least through the base mounting section from the first side to the second side.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: January 5, 2021
    Assignee: CREE, INC.
    Inventors: Sung Chul Joo, Bradley Millon, Erwin Cohen
  • Publication number: 20200321268
    Abstract: A device comprises a base, a die, leads, and an electrically-insulating die housing covering the die. The base comprises a die mounting section in which the die is mounted. The leads extend away from the die mounting section and are electrically connected to the die. The base further comprises a base mounting section and a recessed section. The recessed section comprises a recess between the die mounting section and the base mounting section. The base further comprises a first side, a second side opposing the first side, and a thickness measured between the first and second sides. The thickness of the base throughout the recessed section is less than the thickness of the base throughout the base mounting section. The base further comprises an opening extending at least through the base mounting section from the first side to the second side.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Inventors: Sung Chul Joo, Bradley Millon, Erwin Cohen
  • Patent number: 10720379
    Abstract: The base of an integrated circuit package comprises a first side, and a second side opposing the first side. The base further comprises, a base mounting section, a die mounting section, and a recessed section. The recessed section comprises a recess between the die mounting section and the base mounting section. The base further comprises an opening extending through the base from the first side to the second side. At least a portion of the recess intersects with the opening.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: July 21, 2020
    Assignee: CREE, INC.
    Inventors: Sung Chul Joo, Bradley Millon, Erwin Cohen
  • Publication number: 20200203260
    Abstract: The base of an integrated circuit package comprises a first side, and a second side opposing the first side. The base further comprises, a base mounting section, a die mounting section, and a recessed section. The recessed section comprises a recess between the die mounting section and the base mounting section. The base further comprises an opening extending through the base from the first side to the second side. At least a portion of the recess intersects with the opening.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 25, 2020
    Inventors: Sung Chul Joo, Bradley Millon, Erwin Cohen
  • Publication number: 20060022723
    Abstract: A system and method of shifting a clock frequency of an integrated circuit device from a first frequency to a second frequency, including alternating between the first frequency and the second frequency according to a dithering pattern, the alternating occurring for a predetermined number of cycles; and setting the clock frequency to the second frequency after the predetermined number of cycles.
    Type: Application
    Filed: July 28, 2004
    Publication date: February 2, 2006
    Applicant: International Business Machines Corporation
    Inventors: Miles Canada, Erwin Cohen, Jay Heaslip, Cedric Lichtenau, Thomas Pflueger, Mathew Ringler
  • Publication number: 20050080994
    Abstract: A power saving cache and a method of operating a power saving cache. The power saving cache includes circuitry to dynamically reduce the logical size of the cache in order to save power. Preferably, a method is used to determine optimal cache size for balancing power and performance, using a variety of combinable hardware and software techniques. Also, in a preferred embodiment, steps are used for maintaining coherency during cache resizing, including the handling of modified (“dirty”) data in the cache, and steps are provided for partitioning a cache in one of several way to provide an appropriate configuration and granularity when resizing.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Erwin Cohen, Thomas Cook, Ian Govett, Paul Kartschoke, Stephen Kosonocky, Peter Sandon, Keith Williams