Patents by Inventor Barbara S. DEWITT

Barbara S. DEWITT 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: 10832989
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 10, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
  • Patent number: 10586752
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 10, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
  • Publication number: 20200020612
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
  • Publication number: 20180286785
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
  • Patent number: 10037931
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: July 31, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
  • Publication number: 20170330821
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Application
    Filed: August 4, 2017
    Publication date: November 16, 2017
    Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
  • Patent number: 9780429
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: October 3, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
  • Publication number: 20170110778
    Abstract: The disclosure is directed to semiconductor structures and, more particularly, to a three dimensional microstrip branchline coupler and methods of manufacture. The structure includes a plurality of through silicon vias and conductive lines electrically connected to a first end and a second end of respective ones of the plurality of through silicon vias. A first through silicon via of the plurality of through silicon vias forms a first port of a three dimensional (3D) branchline coupler. A second through silicon via of the plurality of through silicon vias forms a second port of the 3D branchline coupler. A third through silicon via of the plurality of through silicon vias forms a third port of the 3D branchline coupler. A fourth through silicon via of the plurality of through silicon vias forms a fourth port of the 3D branchline coupler.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 20, 2017
    Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
  • Patent number: 9553348
    Abstract: A vertical three dimensional (3D) microstrip line structure for improved tunable characteristic impedance, methods of manufacturing the same and design structures are provided. More specifically, a method is provided that includes forming a first microstrip line structure within a back end of the line (BEOL) stack. The method further includes forming a second microstrip line structure separated from the BEOL stack by a predetermined horizontal distance.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 24, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. Dewitt, Essam Mina, BM Farid Rahman, Guoan Wang
  • Publication number: 20160226123
    Abstract: A vertical three dimensional (3D) microstrip line structure for improved tunable characteristic impedance, methods of manufacturing the same and design structures are provided. More specifically, a method is provided that includes forming a first microstrip line structure within a back end of the line (BEOL) stack. The method further includes forming a second microstrip line structure separated from the BEOL stack by a predetermined horizontal distance.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 4, 2016
    Applicant: University of South Carolina
    Inventors: Barbara S. DEWITT, Essam MINA, BM Farid RAHMAN, Guoan WANG
  • Patent number: 9362606
    Abstract: A vertical three dimensional (3D) microstrip line structure for improved tunable characteristic impedance, methods of manufacturing the same and design structures are provided. More specifically, a method is provided that includes forming a first microstrip line structure within a back end of the line (BEOL) stack. The method further includes forming a second microstrip line structure separated from the BEOL stack by a predetermined horizontal distance.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: June 7, 2016
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, UNIVERISTY OF SOUTH CAROLINA
    Inventors: Barbara S. Dewitt, Essam Mina, B M Farid Rahman, Guoan Wang
  • Patent number: 9035719
    Abstract: A three dimensional (3D) branchline coupler using through silicon vias (TSV), methods of manufacturing the same and design structures are disclosed. The method includes forming a first waveguide structure in a first dielectric material. The method further includes forming a second waveguide structure in a second dielectric material. The method further includes forming through silicon vias through a substrate formed between the first dielectric material and the second dielectric material, which connects the first waveguide structure to the second waveguide structure.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: May 19, 2015
    Assignee: International Business Machines Corporation
    Inventors: Barbara S. Dewitt, Essam Mina, BM Farid Rahman, Guoan Wang, Wayne H. Woods, Jr.
  • Publication number: 20150054592
    Abstract: A vertical three dimensional (3D) microstrip line structure for improved tunable characteristic impedance, methods of manufacturing the same and design structures are provided. More specifically, a method is provided that includes forming a first microstrip line structure within a back end of the line (BEOL) stack. The method further includes forming a second microstrip line structure separated from the BEOL stack by a predetermined horizontal distance.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicants: University of South Carolina, INTERNATIIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DEWITT, Essam MINA, BM Farid RAHMAN, Guoan WANG
  • Publication number: 20150054595
    Abstract: A three dimensional (3D) branchline coupler using through silicon vias (TSV), methods of manufacturing the same and design structures are disclosed. The method includes forming a first waveguide structure in a first dielectric material. The method further includes forming a second waveguide structure in a second dielectric material. The method further includes forming through silicon vias through a substrate formed between the first dielectric material and the second dielectric material, which connects the first waveguide structure to the second waveguide structure.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicants: University of South Carolina, INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Barbara S. DEWITT, Essam MINA, BM Farid RAHMAN, Guoan WANG, Wayne H. WOODS, JR.