Patents by Inventor Rodrigo A. Bernal Montoya

Rodrigo A. Bernal Montoya 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: 9279753
    Abstract: A microelectromechanical device for electromechanical testing a specimen having a nano-scale dimension is formed on a multi-layered semiconductor substrate (chip) and includes an electrothermal or electrostatic actuator for applying a displacement load (force) to the specimen, a load sensor for sensing the load (force) experienced by the specimen. The specimen is disposed between first and second movable shuttles of the actuator and load sensor, which shuttles comprise electrically insulating layers so as to electrically isolate the shuttles and specimen from the actuator and the load sensor on the substrate. A four-terminal Kelvin array is provided to provide specimen electrical characterization measurements and includes first and second outer terminals connected to a current source and to opposite end locations of the specimen and first and second inner terminals connected to a high input impedance voltage meter and to the specimen at other locations between the first and second outer terminals.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 8, 2016
    Assignee: Northwestern University
    Inventors: Horacio Dante Espinosa, Rodrigo A. Bernal Montoya
  • Publication number: 20120297897
    Abstract: A microelectromechanical device for electromechanical testing a specimen having a nano-scale dimension is formed on a multi-layered semiconductor substrate (chip) and includes an electrothermal or electrostatic actuator for applying a displacement load (force) to the specimen, a load sensor for sensing the load (force) experienced by the specimen. The specimen is disposed between first and second movable shuttles of the actuator and load sensor, which shuttles comprise electrically insulating layers so as to electrically isolate the shuttles and specimen from the actuator and the load sensor on the substrate. A four-terminal Kelvin array is provided to provide specimen electrical characterization measurements and includes first and second outer terminals connected to a current source and to opposite end locations of the specimen and first and second inner terminals connected to a high input impedance voltage meter and to the specimen at other locations between the first and second outer terminals.
    Type: Application
    Filed: March 27, 2012
    Publication date: November 29, 2012
    Inventors: Horacio Dante Espinosa, Rodrigo A. Bernal Montoya