Patents by Inventor Gregory D. ROSDAHL

Gregory D. ROSDAHL 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: 8967453
    Abstract: Methods of bonding components for fabricating electronic assemblies and electronic assemblies including bonded components are provided herein. In one example, a method of bonding components for fabricating an electronic assembly comprises the steps of disposing a first layer of a first high temperature metal-containing paste adjacent to a first component. A second layer of a second high temperature metal-containing paste is disposed adjacent to a second component. A nanostructured multilayer reactive foil is disposed between the first and second layers. The nanostructured multilayer reactive foil is activated to sinter the first and second layers and bond the first and second components.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Khiet Le, Vicentiu Grosu, Gregory S. Smith, Yunqi Zheng, Gregory D. Rosdahl
  • Patent number: 8847427
    Abstract: A power module system for a vehicle includes a circuit board, a power transistor mounted to the circuit board, and a temperature sensor mounted to the circuit board in a sensing location remote from the power transistor. The temperature sensor is configured to measure a real-time temperature at the sensing location. The system also includes a processor coupled to the temperature sensor to generate a predicted real-time silicon temperature for the power transistor from the measured real-time temperature at the sensing location. The predicted real-time silicon temperature is generated using a selected calibration curve that corresponds to a current operating state of the vehicle.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: September 30, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Khiet Le, Gregory D. Rosdahl, David Tang, Seok-Joo Jang, Song He
  • Publication number: 20130250538
    Abstract: Methods of bonding components for fabricating electronic assemblies and electronic assemblies including bonded components are provided herein. In one example, a method of bonding components for fabricating an electronic assembly comprises the steps of disposing a first layer of a first high temperature metal-containing paste adjacent to a first component. A second layer of a second high temperature metal-containing paste is disposed adjacent to a second component. A nanostructured multilayer reactive foil is disposed between the first and second layers. The nanostructured multilayer reactive foil is activated to sinter the first and second layers and bond the first and second components.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: KHIET LE, VICENTIU GROSU, GREGORY S. SMITH, YUNQI ZHENG, GREGORY D. ROSDAHL
  • Publication number: 20130049454
    Abstract: A power module system for a vehicle includes a circuit board, a power transistor mounted to the circuit board, and a temperature sensor mounted to the circuit board in a sensing location remote from the power transistor. The temperature sensor is configured to measure a real-time temperature at the sensing location. The system also includes a processor coupled to the temperature sensor to generate a predicted real-time silicon temperature for the power transistor from the measured real-time temperature at the sensing location. The predicted real-time silicon temperature is generated using a selected calibration curve that corresponds to a current operating state of the vehicle.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: KHIET LE, GREGORY D. ROSDAHL, David TANG, SEOK-JOO JANG, SONG HE
  • Publication number: 20090032229
    Abstract: A method for cooling an inverter of a vehicle system includes the steps of providing a flow of cooling fluid to the inverter, determining a value of a variable that is influenced at least in part by the flow of cooling fluid to the inverter, and regulating the flow of cooling fluid to the inverter based at least in part on the value of the variable.
    Type: Application
    Filed: July 11, 2008
    Publication date: February 5, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Gabriel GALLEGOS-LOPEZ, Khiet LE, David F. NELSON, George JOHN, Gregory S. SMITH, Gregory D. ROSDAHL