Patents by Inventor William Francis Landers
William Francis Landers 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: 12166260Abstract: Techniques regarding an embedded microstrip transmission line implemented in one more superconducting microwave electronic devices are provided. For example, one or more embodiments described herein can comprise an apparatus, which can include a superconducting material layer positioned on a raised portion of a dielectric substrate. The raised portion can extend from a surface of the dielectric substrate. The apparatus can also comprise a dielectric film that covers at least a portion of the superconducting material layer and the raised portion of the dielectric substrate.Type: GrantFiled: September 7, 2022Date of Patent: December 10, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Isaac Lauer, William Francis Landers, Srikanth Srinivasan, Neereja Sundaresan
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Publication number: 20220416392Abstract: Techniques regarding an embedded microstrip transmission line implemented in one more superconducting microwave electronic devices are provided. For example, one or more embodiments described herein can comprise an apparatus, which can include a superconducting material layer positioned on a raised portion of a dielectric substrate. The raised portion can extend from a surface of the dielectric substrate. The apparatus can also comprise a dielectric film that covers at least a portion of the superconducting material layer and the raised portion of the dielectric substrate.Type: ApplicationFiled: September 7, 2022Publication date: December 29, 2022Inventors: Isaac Lauer, William Francis Landers, Srikanth Srinivasan, Neereja Sundaresan
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Publication number: 20220362774Abstract: Microfluidic chips that can comprise thin substrates and/or a high density of vias are described herein. An apparatus comprises: a silicon device layer comprising a plurality of vias, the plurality of vias comprising greater than or equal to about 100 vias per square centimeter of a surface of the silicon device layer and less than or equal to about 100,000 vias per square centimeter of the surface of the silicon device layer, and the plurality of vias extending through the silicon device layer; and a sealing layer bonded to the silicon device layer, wherein the sealing layer has greater rigidity than the silicon device layer. In some embodiments, the silicon device layer has a thickness between about 7 micrometers and about 500 micrometers while a via of the plurality of vias has a diameter between about 5 micrometers and about 5 millimeters.Type: ApplicationFiled: July 21, 2022Publication date: November 17, 2022Inventors: Joshua T. Smith, William Francis Landers, Kevin Winstel, Teresa Jacqueline Wu
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Patent number: 11469485Abstract: Techniques regarding an embedded microstrip transmission line implemented in one more superconducting microwave electronic devices are provided. For example, one or more embodiments described herein can comprise an apparatus, which can include a superconducting material layer positioned on a raised portion of a dielectric substrate. The raised portion can extend from a surface of the dielectric substrate. The apparatus can also comprise a dielectric film that covers at least a portion of the superconducting material layer and the raised portion of the dielectric substrate.Type: GrantFiled: October 21, 2020Date of Patent: October 11, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Isaac Lauer, William Francis Landers, Srikanth Srinivasan, Neereja Sundaresan
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Patent number: 11458474Abstract: Microfluidic chips that can comprise thin substrates and/or a high density of vias are described herein. An apparatus comprises: a silicon device layer comprising a plurality of vias, the plurality of vias comprising greater than or equal to about 100 vias per square centimeter of a surface of the silicon device layer and less than or equal to about 100,000 vias per square centimeter of the surface of the silicon device layer, and the plurality of vias extending through the silicon device layer; and a sealing layer bonded to the silicon device layer, wherein the sealing layer has greater rigidity than the silicon device layer. In some embodiments, the silicon device layer has a thickness between about 7 micrometers and about 500 micrometers while a via of the plurality of vias has a diameter between about 5 micrometers and about 5 millimeters.Type: GrantFiled: January 19, 2018Date of Patent: October 4, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joshua T. Smith, William Francis Landers, Kevin Winstel, Teresa Jacqueline Wu
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Publication number: 20220123449Abstract: Techniques regarding an embedded microstrip transmission line implemented in one more superconducting microwave electronic devices are provided. For example, one or more embodiments described herein can comprise an apparatus, which can include a superconducting material layer positioned on a raised portion of a dielectric substrate. The raised portion can extend from a surface of the dielectric substrate. The apparatus can also comprise a dielectric film that covers at least a portion of the superconducting material layer and the raised portion of the dielectric substrate.Type: ApplicationFiled: October 21, 2020Publication date: April 21, 2022Inventors: Isaac Lauer, William Francis Landers, Srikanth Srinivasan, Neereja Sundaresan
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Publication number: 20190224679Abstract: Microfluidic chips that can comprise thin substrates and/or a high density of vias are described herein. An apparatus comprises: a silicon device layer comprising a plurality of vias, the plurality of vias comprising greater than or equal to about 100 vias per square centimeter of a surface of the silicon device layer and less than or equal to about 100,000 vias per square centimeter of the surface of the silicon device layer, and the plurality of vias extending through the silicon device layer; and a sealing layer bonded to the silicon device layer, wherein the sealing layer has greater rigidity than the silicon device layer. In some embodiments, the silicon device layer has a thickness between about 7 micrometers and about 500 micrometers while a via of the plurality of vias has a diameter between about 5 micrometers and about 5 millimeters.Type: ApplicationFiled: January 19, 2018Publication date: July 25, 2019Inventors: Joshua T. Smith, William Francis Landers, Kevin Winstel, Teresa Jacqueline Wu
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Publication number: 20150097274Abstract: An improved through-silicon via (TSV) is disclosed. A semiconductor substrate has a a back-end-of-line (BEOL) stack formed thereon. The BEOL stack and semiconductor substrate has a TSV cavity formed thereon. A conformal protective layer is disposed on the interior surface of the TSV cavity, along the BEOL stack and partway into the semiconductor substrate. The conformal protective layer serves to protect the dielectric layers within the BEOL stack during subsequent processing, improving the integrated circuit quality and product yield.Type: ApplicationFiled: December 16, 2014Publication date: April 9, 2015Applicant: International Business Machines CorporationInventors: Christopher Collins, Mukta G. Farooq, Troy Lawrence Graves-Abe, Tze-Man Ko, William Francis Landers, Youbo Lin, Son Van Nguyen, Jennifer Ann Oakley, Deepika Priyadarshini
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Publication number: 20150069608Abstract: An improved through-silicon via (TSV) and method of fabrication are disclosed. A back-end-of-line (BEOL) stack is formed on a semiconductor substrate. A TSV cavity is formed in the BEOL stack and semiconductor substrate. A conformal protective layer is disposed on the interior surface of the TSV cavity, along the BEOL stack and partway into the semiconductor substrate. The conformal protective layer serves to protect the dielectric layers within the BEOL stack during subsequent processing, improving the integrated circuit quality and product yield.Type: ApplicationFiled: September 11, 2013Publication date: March 12, 2015Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Christopher Collins, Troy Lawrence Graves-Abe, Mukta G. Farooq, Tze-man Ko, William Francis Landers, Youbo Lin, Son Van Nguyen, Jennifer Ann Oakley, Deepika Priyadarshini
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Patent number: 8386977Abstract: A tool that allows three dimensional chip circuit designs to be checked subsequent to 3D design layer mirroring. The 3D chip design is converted to a corresponding 2D chip design by mirroring one or more design layers from the mirrored side of a 3D design and merging those design layers with unmirrored design layers from the unmirrored side of a 3D design. The converted circuit design can be processed by standard verification checks. The tool may also receive design layers corresponding to an integrated circuit that will pass through multiple semiconductor chips. Each design cell is examined to determine if it corresponds to a mirrored or unmirrored side of its respective semiconductor chip. If the respective design cell corresponds to the mirrored side, the design cell is mirrored. All mirrored cells are then merged with the unmirrored design cells in the correct order. The merged design is processed by standard verification checks.Type: GrantFiled: May 23, 2011Date of Patent: February 26, 2013Assignee: International Business Machines CorporationInventors: Mukta G. Farooq, John A. Griesemer, William Francis Landers, Kevin S. Petrarca, Richard Paul Volant
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Patent number: 8367543Abstract: A system and method comprises depositing a dielectric layer on a substrate and depositing a metal layer on the dielectric layer. The system and method further includes depositing a high temperature diffusion barrier metal cap on the metal layer. The system and method further includes depositing a second dielectric layer on the high temperature diffusion barrier metal cap and the first dielectric layer, and etching a via into the second dielectric layer, such that the high temperature diffusion barrier metal cap is exposed. The system and method further includes depositing an under bump metallurgy in the via, and forming a C4 ball on the under bump metallurgy layer.Type: GrantFiled: March 21, 2006Date of Patent: February 5, 2013Assignee: International Business Machines CorporationInventors: Mukta Ghate Farooq, Jasvir Singh Jaspal, William Francis Landers, Thomas E. Lombardi, Hai Pham Longworth, H. Bernhard Pogge, Roger A. Quon
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Publication number: 20120304138Abstract: A tool that allows three dimensional chip circuit designs to be checked subsequent to 3D design layer mirroring. The 3D chip design is converted to a corresponding 2D chip design by mirroring one or more design layers from the mirrored side of a 3D design and merging those design layers with unmirrored design layers from the unmirrored side of a 3D design. The converted circuit design can be processed by standard verification checks. The tool may also receive design layers corresponding to an integrated circuit that will pass through multiple semiconductor chips. Each design cell is examined to determine if it corresponds to a mirrored or unmirrored side of its respective semiconductor chip. If the respective design cell corresponds to the mirrored side, the design cell is mirrored. All mirrored cells are then merged with the unmirrored design cells in the correct order. The merged design is processed by standard verification checks.Type: ApplicationFiled: May 23, 2011Publication date: November 29, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Mukta G. Farooq, John A. Griesemer, William Francis Landers, Kevin S. Petrarca, Richard Paul Volant
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Patent number: 8288270Abstract: The embodiments provide a method for reducing electromigration in a circuit containing a through-silicon via (TSV) and the resulting novel structure for the TSV. A TSV is formed through a semiconductor substrate. A first end of the TSV connects to a first metallization layer on a device side of the semiconductor substrate. A second end of the TSV connects to a second metallization layer on a grind side of the semiconductor substrate. A first flat edge is created on the first end of the TSV at the intersection of the first end of the TSV and the first metallization layer. A second flat edge is created on the second end of the TSV at the intersection of the second end of the TSV and the second metallization layer. On top of the first end a metal contact grid is placed, having less than eighty percent metal coverage.Type: GrantFiled: February 15, 2012Date of Patent: October 16, 2012Assignee: International Business Machines CorporationInventors: Mukta G Farooq, John A Griesemer, Gary LaFontant, William Francis Landers, Timothy Dooling Sullivan
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Publication number: 20120199975Abstract: The embodiments provide a method for reducing electromigration in a circuit containing a through-silicon via (TSV) and the resulting novel structure for the TSV. A TSV is formed through a semiconductor substrate. A first end of the TSV connects to a first metallization layer on a device side of the semiconductor substrate. A second end of the TSV connects to a second metallization layer on a grind side of the semiconductor substrate. A first flat edge is created on the first end of the TSV at the intersection of the first end of the TSV and the first metallization layer. A second flat edge is created on the second end of the TSV at the intersection of the second end of the TSV and the second metallization layer. On top of the first end a metal contact grid is placed, having less than eighty percent metal coverage.Type: ApplicationFiled: February 9, 2011Publication date: August 9, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Mukta G. Farooq, John A. Griesemer, Gary LaFontant, William Francis Landers, Timothy Dooling Sullivan
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Publication number: 20120199983Abstract: The embodiments provide a method for reducing electromigration in a circuit containing a through-silicon via (TSV) and the resulting novel structure for the TSV. A TSV is formed through a semiconductor substrate. A first end of the TSV connects to a first metallization layer on a device side of the semiconductor substrate. A second end of the TSV connects to a second metallization layer on a grind side of the semiconductor substrate. A first flat edge is created on the first end of the TSV at the intersection of the first end of the TSV and the first metallization layer. A second flat edge is created on the second end of the TSV at the intersection of the second end of the TSV and the second metallization layer. On top of the first end a metal contact grid is placed, having less than eighty percent metal coverage.Type: ApplicationFiled: February 15, 2012Publication date: August 9, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Mukta G. Farooq, John A. Griesemer, Gary LaFontant, William Francis Landers, Timothy Dooling Sullivan
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Patent number: 8237288Abstract: The embodiments provide a method for reducing electromigration in a circuit containing a through-silicon via (TSV) and the resulting novel structure for the TSV. A TSV is formed through a semiconductor substrate. A first end of the TSV connects to a first metallization layer on a device side of the semiconductor substrate. A second end of the TSV connects to a second metallization layer on a grind side of the semiconductor substrate. A first flat edge is created on the first end of the TSV at the intersection of the first end of the TSV and the first metallization layer. A second flat edge is created on the second end of the TSV at the intersection of the second end of the TSV and the second metallization layer. On top of the first end a metal contact grid is placed, having less than eighty percent metal coverage.Type: GrantFiled: February 9, 2011Date of Patent: August 7, 2012Assignee: International Business Machines CorporationInventors: Mukta G Farooq, John A Griesemer, Gary LaFontant, William Francis Landers, Timothy Dooling Sullivan
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Patent number: 7714452Abstract: An electrical structure and method comprising a first substrate electrically and mechanically connected to a second substrate. The first substrate comprises a first electrically conductive pad and a second electrically conductive pad. The second substrate comprises a third electrically conductive pad, a fourth electrically conductive pad, and a first electrically conductive member. The fourth electrically conductive pad comprises a height that is different than a height of the first electrically conductive member. The electrically conductive member is electrically and mechanically connected to the fourth electrically conductive pad. A first solder ball connects the first electrically conductive pad to the third electrically conductive pad. The first solder ball comprises a first diameter. A second solder ball connects the second electrically conductive pad to the first electrically conductive member. The second solder ball comprises a second diameter. The first diameter is greater than said second diameter.Type: GrantFiled: August 30, 2007Date of Patent: May 11, 2010Assignee: International Business Machines CorporationInventors: Lawrence A. Clevenger, Mukta Ghate Farooq, Louis Lu-Chen Hsu, William Francis Landers, Donna S. Zupanski-Nielson, Carl John Radens, Chih-Chao Yang
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Publication number: 20080160752Abstract: A damascene method of forming a C4 element includes forming a last level metal layer on a substrate, forming a TV ILD layer on the last level metal layer, forming a lithographically patterned UBM adhesion layer including one of Ti, TiW, Cr and Cu, forming a mandrel layer over the UBM adhesion layer, lithographically patterning the mandrel layer to form an aperture, depositing a solder layer by one of sputtering, evaporation, physical vapor deposition, solder wave or injection molding in the aperture, planarizing the solder layer by CMP, removing the mandrel layer, reflowing the solder to ball the solder to form a ball interconnect, and joining a second substrate with an I/O pad to the ball interconnect.Type: ApplicationFiled: January 3, 2007Publication date: July 3, 2008Applicant: International Business Machines CorporationInventors: Lawrence Clevenger, Timothy J. Dalton, Mukta Ghate Farooq, William Francis Landers, Carl Radens, Chih-Chao Yang
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Patent number: 7009280Abstract: An interlevel dielectric layer (ILD) comprises a low-k dielectric layer; and a low-k dielectric film, deposited under compressive stress, atop the dielectric layer. The dielectric layer comprises a low-k material, such as an organosilicon glass (OSG) or a SiCOH material. The dielectric film has a thickness, which is 2%–10% of the thickness of the dielectric layer, has a similar chemical composition to the dielectric layer, but has a different morphology than the dielectric layer. The dielectric film is deposited under compressive stress, in situ, at or near the end of the dielectric layer deposition by altering a process that was used to deposit the low-k dielectric layer.Type: GrantFiled: April 28, 2004Date of Patent: March 7, 2006Assignee: International Business Machines CorporationInventors: Matthew Angyal, Edward Paul Barth, Sanjit Kumar Das, Charles Robert Davis, Habib Hichri, William Francis Landers, Jia Lee
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Patent number: 6291833Abstract: A method and apparatus for detecting scratches on a wafer surface. The method comprises the use of a monitor wafer which has a substrate, a first layer deposited on the substrate, and a second layer deposited on the first layer. The first and second layers have contrasting work functions such that when short wavelength light is directed on the monitor wafer, scratches through the second layer can be detected.Type: GrantFiled: December 15, 1999Date of Patent: September 18, 2001Assignee: International Business Machines CorporationInventors: William Francis Landers, Jyothi Singh