Patents by Inventor David Deen

David Deen 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: 20250166861
    Abstract: A quantum object confinement apparatus is provided comprising one or more electrode sequences and a voltage control circuit for providing analog control signals to at least a first symmetric pair of control electrodes of one of the electrode sequences. The voltage control circuit (i) selectively closes one of a first plurality of switches to complete an electrical connection between the voltage control circuit and a first symmetric control electrode and (ii) simultaneously selectively closes one of a second plurality of switches to complete an electrical connection between the voltage control circuit and a second symmetric control electrode. The voltage control circuit applies a same voltage to an input of the one of the first plurality of switches and to an input of the one of the second plurality of switches prior to selectively closing and as the switches close.
    Type: Application
    Filed: September 9, 2024
    Publication date: May 22, 2025
    Inventors: Leonardo Ascarrunz, David Deen, Timothy Peterson, Christopher E. Langer, Paul M. Werking
  • Publication number: 20250125314
    Abstract: A confinement apparatus package is provided. The confinement apparatus chip includes a confinement apparatus die having a plurality of electrodes formed thereon, wherein the plurality of electrodes defines a confinement apparatus; an application-specific integrated circuit (ASIC) chip comprising an ASIC die having an ASIC formed thereon; and a package substrate. The ASIC die is disposed between the package substrate and the confinement apparatus die. The ASIC defines a plurality of electrical channels and each electrode of the plurality of electrodes is in electrical communication with a respective electrical channel of the plurality of electrical channels.
    Type: Application
    Filed: September 18, 2024
    Publication date: April 17, 2025
    Inventors: David DEEN, Matthew SWALLOWS, Leonardo ASCARRUNZ, Benjamin SPAUN
  • Publication number: 20250112632
    Abstract: A quantum object confinement apparatus comprising one or more high-voltage semiconductor switches is provided. Each switch comprises a transmission gate portion, a gate driver portion, a current distribution portion, and a logic enable portion. The transmission gate portion comprises two transistors connected in series source-to-source or drain-to-drain. The gate driver portion detects a voltage at the switch input terminal and the switch output terminal and applies a bias voltage to the gates of the two transistors of the transmission gate portion that is a predetermined amount above a lesser or a greater of the voltage at the switch input terminal or the voltage at the switch output terminal.
    Type: Application
    Filed: August 28, 2024
    Publication date: April 3, 2025
    Inventors: David Deen, Leonardo Ascarrunz, Paul M. Werking, Garrett Shaffer
  • Publication number: 20240079228
    Abstract: A low loss silicon nitride film is formed by depositing a silicon nitride film on a substrate and annealing the silicon nitride film for at least ten hours at a temperature of at least 400° C. to cause the silicon nitride film to become a low loss silicon nitride film. The low loss silicon nitride film has an optical loss of less than 1 dB per cm at a wavelength of 488 nm.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 7, 2024
    Inventors: Christopher John Carron, Molly Krogstad, Robert Horning, Robert Higashi, David Deen
  • Patent number: 11876092
    Abstract: An ion trap apparatus (e.g., ion trap chip) having a plurality of electrodes is provided. The ion trap apparatus may comprise a plurality of interconnect layers, a substrate, and at least one integrated switching network layer disposed between the plurality of interconnect layers and the substrate. The integrated switching network layer may comprise a plurality of monolithically-integrated controls and/or switches configured to condition a voltage signal applied to at least one of the plurality of electrodes. An example ion trap apparatus may comprise a surface ion trap chip. The ion trap apparatus may be configured to operate within a cryogenic chamber.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: January 16, 2024
    Assignee: Quantinuum LLC
    Inventors: David Deen, Grahame Vittorini, Nathaniel Burdick
  • Publication number: 20220037313
    Abstract: An ion trap apparatus (e.g., ion trap chip) having a plurality of electrodes is provided. The ion trap apparatus may comprise a plurality of interconnect layers, a substrate, and at least one integrated switching network layer disposed between the plurality of interconnect layers and the substrate. The integrated switching network layer may comprise a plurality of monolithically-integrated controls and/or switches configured to condition a voltage signal applied to at least one of the plurality of electrodes. An example ion trap apparatus may comprise a surface ion trap chip. The ion trap apparatus may be configured to operate within a cryogenic chamber.
    Type: Application
    Filed: July 1, 2021
    Publication date: February 3, 2022
    Inventors: David Deen, Grahame Vittorini, Nathaniel Burdick
  • Patent number: 9761279
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: September 12, 2017
    Assignee: Seagate Technology LLC
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Yi
  • Publication number: 20170200479
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Li
  • Patent number: 9607634
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: March 28, 2017
    Assignee: Seagate Technology LLC
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Li
  • Publication number: 20160163337
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammed Patwari, Taras Pokhil, Jae-Young Li
  • Patent number: 9269379
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: February 23, 2016
    Assignee: Seagate Technology LLC
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammend Patwari, Taras Pokhil, Jae-Young Li
  • Publication number: 20150380019
    Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
    Type: Application
    Filed: June 30, 2014
    Publication date: December 31, 2015
    Inventors: David Deen, Eric Singleton, Vasudevan Ramaswamy, Mohammend Patwari, Taras Pokhil, Jae-Young Li