Patents by Inventor Carl W. Chang

Carl W. Chang 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).

  • Durable bond pad structure for electrical connection to extreme environment microelectronic integrated circuits
    Patent number: 10256202
    Abstract: A durable bond pad structure is described that facilitates highly durable electrical connections to semiconductor microelectronics chips (e.g., silicon carbide (SiC) chips) to enable prolonged operation over very extreme temperature ranges.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 9, 2019
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: David J. Spry, Dorothy Lukco, Philip G. Neudeck, Carl W. Chang, Liangyu Chen, Roger D. Meredith, Kelley M. Moses, Charles A. Blaha, Jose M. Gonzalez, Glenn M. Beheim, Kimala L. Laster
  • MINIATURIZED GAS SENSOR DEVICE AND METHOD
    Publication number: 20180088077
    Abstract: Various embodiments of a gas sensor device and method of fabricating a gas sensor device are provided. In one embodiment a gas sensor device includes a base substrate, an electrolyte layer disposed on the base substrate and a plurality of potentiometric sensor units electrically coupled to the base substrate. Each potentiometric sensor unit includes an electrolyte layer disposed on the base substrate, a sensing electrode comprising tungsten oxide (WO3)and platinum (Pt), a reference electrode comprising Pt, and a plurality of connectors coupled to the plurality of potentiometric sensors to connect the plurality of potentiometric sensors in series.
    Type: Application
    Filed: September 29, 2017
    Publication date: March 29, 2018
    Inventors: Gary W. Hunter, Carl W. Chang, Prabir K. Dutta, Suvra P. Mondal, Azlin M. Biaggi-Labiosa, Daniel Laskowski, Raed Dweik
  • MINIATURIZED GAS SENSOR DEVICE AND METHOD
    Publication number: 20140262835
    Abstract: Various embodiments of a gas sensor device and method of fabricating a gas sensor device are provided. In one embodiment a gas sensor device includes a base substrate, an electrolyte layer disposed on the base substrate and a plurality of potentiometric sensor units electrically coupled to the base substrate. Each potentiometric sensor unit includes an electrolyte layer disposed on the base substrate, a sensing electrode comprising tungsten oxide (WO3) and platinum (Pt), a reference electrode comprising Pt, and a plurality of connectors coupled to the plurality of potentiometric sensors to connect the plurality of potentiometric sensors in series.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: THE CLEVELAND CLINIC FOUNDATION
    Inventors: Gary W. Hunter, Carl W. Chang, Prabir K. Dutta, Suvra P. Mondal, Azlin M. Biaggi-Labiosa