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).
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Patent number: 10832989Abstract: 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: GrantFiled: September 26, 2019Date of Patent: November 10, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Patent number: 10586752Abstract: 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: GrantFiled: June 5, 2018Date of Patent: March 10, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Publication number: 20200020612Abstract: 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: ApplicationFiled: September 26, 2019Publication date: January 16, 2020Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Publication number: 20180286785Abstract: 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: ApplicationFiled: June 5, 2018Publication date: October 4, 2018Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Patent number: 10037931Abstract: 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: GrantFiled: August 4, 2017Date of Patent: July 31, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Publication number: 20170330821Abstract: 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: ApplicationFiled: August 4, 2017Publication date: November 16, 2017Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Patent number: 9780429Abstract: 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: GrantFiled: October 16, 2015Date of Patent: October 3, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DeWitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Publication number: 20170110778Abstract: 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: ApplicationFiled: October 16, 2015Publication date: April 20, 2017Inventors: Barbara S. DeWITT, Essam MINA, B M Farid RAHMAN, Guoan WANG
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Patent number: 9553348Abstract: 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: GrantFiled: April 13, 2016Date of Patent: January 24, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. Dewitt, Essam Mina, BM Farid Rahman, Guoan Wang
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Publication number: 20160226123Abstract: 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: ApplicationFiled: April 13, 2016Publication date: August 4, 2016Applicant: University of South CarolinaInventors: Barbara S. DEWITT, Essam MINA, BM Farid RAHMAN, Guoan WANG
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Patent number: 9362606Abstract: 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: GrantFiled: August 23, 2013Date of Patent: June 7, 2016Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, UNIVERISTY OF SOUTH CAROLINAInventors: Barbara S. Dewitt, Essam Mina, B M Farid Rahman, Guoan Wang
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Patent number: 9035719Abstract: 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: GrantFiled: August 23, 2013Date of Patent: May 19, 2015Assignee: International Business Machines CorporationInventors: Barbara S. Dewitt, Essam Mina, BM Farid Rahman, Guoan Wang, Wayne H. Woods, Jr.
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Publication number: 20150054592Abstract: 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: ApplicationFiled: August 23, 2013Publication date: February 26, 2015Applicants: University of South Carolina, INTERNATIIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DEWITT, Essam MINA, BM Farid RAHMAN, Guoan WANG
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Publication number: 20150054595Abstract: 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: ApplicationFiled: August 23, 2013Publication date: February 26, 2015Applicants: University of South Carolina, INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Barbara S. DEWITT, Essam MINA, BM Farid RAHMAN, Guoan WANG, Wayne H. WOODS, JR.