Patents by Inventor Alexander Lostetter

Alexander Lostetter 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: 11696417
    Abstract: A power module including at least one substrate, a housing arranged on the at least one power substrate, a first terminal electrically connected to the at least one power substrate, a second terminal including a contact surface, a third terminal electrically connected to the at least one power substrate, a plurality of power devices arranged on and connected to the at least one power substrate, and the third terminal being electrically connected to at least one of the plurality of power devices. The power module further including a base plate and a plurality of pin fins arranged on the base plate and the plurality of pin fins configured to provide direct cooling for the power module.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: July 4, 2023
    Assignee: WOLFSPEED, INC.
    Inventors: Matthew Feurtado, Brice McPherson, Daniel Martin, Alexander Lostetter
  • Publication number: 20220354014
    Abstract: A power module including at least one substrate, a housing arranged on the at least one power substrate, a first terminal electrically connected to the at least one power substrate, a second terminal including a contact surface, a third terminal electrically connected to the at least one power substrate, a plurality of power devices arranged on and connected to the at least one power substrate, and the third terminal being electrically connected to at least one of the plurality of power devices. The power module further including a base plate and a plurality of pin fins arranged on the base plate and the plurality of pin fins configured to provide direct cooling for the power module.
    Type: Application
    Filed: July 7, 2022
    Publication date: November 3, 2022
    Inventors: Matthew FEURTADO, Brice MCPHERSON, Daniel MARTIN, Alexander LOSTETTER
  • Patent number: 11445630
    Abstract: A power module including at least one substrate, a housing arranged on the at least one power substrate, a first terminal electrically connected to the at least one power substrate, a second terminal including a contact surface, a third terminal electrically connected to the at least one power substrate, a plurality of power devices arranged on and connected to the at least one power substrate, and the third terminal being electrically connected to at least one of the plurality of power devices. The power module further including a base plate and a plurality of pin fins arranged on the base plate and the plurality of pin fins configured to provide direct cooling for the power module.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: September 13, 2022
    Assignee: WOLFSPEED, INC.
    Inventors: Matthew Feurtado, Brice McPherson, Daniel Martin, Alexander Lostetter
  • Publication number: 20210136947
    Abstract: A power module including at least one substrate, a housing arranged on the at least one power substrate, a first terminal electrically connected to the at least one power substrate, a second terminal including a contact surface, a third terminal electrically connected to the at least one power substrate, a plurality of power devices arranged on and connected to the at least one power substrate, and the third terminal being electrically connected to at least one of the plurality of power devices. The power module further including a base plate and a plurality of pin fins arranged on the base plate and the plurality of pin fins configured to provide direct cooling for the power module.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 6, 2021
    Inventors: Matthew Feurtado, Brice McPherson, Daniel Martin, Alexander Lostetter
  • Patent number: 10917992
    Abstract: A power module including at least one substrate, a housing arranged on the at least one power substrate, a first terminal electrically connected to the at least one power substrate, a second terminal including a contact surface, a third terminal electrically connected to the at least one power substrate, a plurality of power devices arranged on and connected to the at least one power substrate, and the third terminal being electrically connected to at least one of the plurality of power devices. The power module further including a base plate and a plurality of pin fins arranged on the base plate and the plurality of pin fins configured to provide direct cooling for the power module.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 9, 2021
    Assignee: CREE FAYETTEVILLE, INC.
    Inventors: Matthew Feurtado, Brice McPherson, Daniel Martin, Alexander Lostetter
  • Publication number: 20200304037
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 24, 2020
    Inventors: Daniel Martin, Brice McPherson, Alexander Lostetter
  • Patent number: 10749443
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: August 18, 2020
    Assignee: Cree Fayetteville, Inc.
    Inventors: Daniel Martin, Brice McPherson, Alexander Lostetter
  • Publication number: 20200053900
    Abstract: A power module including at least one substrate, a housing arranged on the at least one power substrate, a first terminal electrically connected to the at least one power substrate, a second terminal including a contact surface, a third terminal electrically connected to the at least one power substrate, a plurality of power devices arranged on and connected to the at least one power substrate, and the third terminal being electrically connected to at least one of the plurality of power devices. The power module further including a base plate and a plurality of pin fins arranged on the base plate and the plurality of pin fins configured to provide direct cooling for the power module.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Inventors: Matthew Feurtado, Brice McPherson, Daniel Martin, Alexander Lostetter
  • Publication number: 20190191585
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 20, 2019
    Inventors: Brice McPherson, Alexander Lostetter
  • Publication number: 20190181770
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 13, 2019
    Inventors: Daniel Martin, Brice McPherson, Alexander Lostetter
  • Patent number: 10212838
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: February 19, 2019
    Assignee: Cree Fayetteville, Inc.
    Inventors: Brice McPherson, Alexander Lostetter
  • Publication number: 20180206359
    Abstract: The disclosure is directed to a power module that includes at least one power substrate, a housing arranged on the at least one power substrate, and a first terminal electrically connected to the at least one power substrate. The first terminal includes a contact surface located above the housing at a first elevation. The power module includes a second terminal including a contact surface located above the housing at a second elevation different from the first elevation, a third terminal electrically connected to the at least one power substrate, and a plurality of power devices electrically connected to the at least one power substrate.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 19, 2018
    Inventors: Brice McPherson, Alexander Lostetter
  • Patent number: 9728868
    Abstract: The present invention is directed to a liquid and solid phase power connect for packaging of an electrical device using a using a phase changing metal. The phase changing metal transitions back and forth between a liquid phase and a solid phase while constantly maintaining connection to the electrical device. The packaging uses a substrate, a restraining housing, and a lid to encase an electrical contact on the electrical device and restrain the phase changing metal. In one embodiment, the entire electrical device is encased and a voltage isolator is utilized to limit the contact areas between the phase changing metal and the electrical device. A method for relieving contact stress by transitioning the phase changing metal from a solid to a liquid is also taught.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: August 8, 2017
    Assignee: Cree Fayetteville, Inc.
    Inventor: Alexander Lostetter
  • Patent number: 9407251
    Abstract: A multichip power module directly connecting the busboard to a printed-circuit board that is attached to the power substrate enabling extremely low loop inductance for extreme environments such as high temperature operation. Wire bond interconnections are taught from the power die directly to the busboard further enabling enable low parasitic interconnections. Integration of on-board high frequency bus capacitors provide extremely low loop inductance. An extreme environment gate driver board allows close physical proximity of gate driver and power stage to reduce overall volume and reduce impedance in the control circuit. Parallel spring-loaded pin gate driver PCB connections allows a reliable and reworkable power module to gate driver interconnections.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: August 2, 2016
    Assignee: Cree Fayetteville, Inc.
    Inventors: Brandon Passmore, Zach Cole, Bret Whitaker, Adam Barkley, Ty McNutt, Alexander Lostetter
  • Patent number: D903590
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 1, 2020
    Assignee: Cree Fayetteville, Inc.
    Inventors: Brice McPherson, Alexander Lostetter
  • Patent number: D954667
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 14, 2022
    Assignee: WOLFSPEED, INC.
    Inventors: Brice McPherson, Alexander Lostetter
  • Patent number: D954668
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: June 14, 2022
    Assignee: WOLFSPEED, INC.
    Inventors: Matthew Feurtado, Daniel Martin, Ty McNutt, Brice McPherson, Alexander Lostetter
  • Patent number: D969740
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: November 15, 2022
    Assignee: WOLFSPEED, INC.
    Inventors: Brice McPherson, Alexander Lostetter