Patents by Inventor Seyed Omid Reza Moheimani

Seyed Omid Reza Moheimani 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: 11973441
    Abstract: A microelectromechanical (MEMS) device is provided. The MEMS device comprises a substrate and a movable structure flexurally connected to the substrate, capable of moving in relation to the substrate, wherein the movable structure further comprising two or more segments having at least one mechanical connection between said segments to provide structural integrity of the moving structure; and wherein the at least one mechanical connection electrically isolates at least two segments.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 30, 2024
    Assignee: Board of Regents, The University of Texas System
    Inventors: Seyed Omid Reza Moheimani, Afshin Alipour, Mustafa Bulut Coskun
  • Patent number: 11852654
    Abstract: Illustrative embodiments provide an apparatus comprising a substrate comprising a cantilever, a bottom electrode on the substrate, a bottom piezoelectric transducer on the bottom electrode such that the bottom electrode is between the substrate and the bottom piezoelectric transducer, a middle electrode on the bottom piezoelectric transducer such that the bottom piezoelectric transducer is between the bottom electrode and the middle electrode, a top piezoelectric transducer on the middle electrode such that the middle electrode is between the bottom piezoelectric transducer and the top piezoelectric transducer, and a top electrode on the top piezoelectric transducer, such that the top piezoelectric transducer is between the middle electrode and the top electrode. Illustrative embodiments also provide a method of making the apparatus and a method of using the apparatus for atomic force microscopy.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 26, 2023
    Assignee: Board of Regents, The University of Texas System
    Inventors: Seyed Omid Reza Moheimani, Mohammad Mahdavi
  • Patent number: 11650222
    Abstract: In the system and method disclosed, an ultrahigh vacuum (UHV) scanning tunneling microscope (STM) tip is used to selectively desorb hydrogen atoms from the Si(100)-2X1:H surface by injecting electrons at a negative sample bias voltage. A new lithography method is disclosed that allows the STM to operate under imaging conditions and simultaneously desorb H atoms as required. A high frequency signal is added to the negative sample bias voltage to deliver the required energy for hydrogen removal. The resulted current at this frequency and its harmonics are filtered to minimize their effect on the operation of the STM's feedback loop. This approach offers a significant potential for controlled and precise removal of hydrogen atoms from a hydrogen-terminated silicon surface and thus may be used for the fabrication of practical silicon-based atomic-scale devices.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: May 16, 2023
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Seyed Omid Reza Moheimani, Hamed Alemansour
  • Publication number: 20220368249
    Abstract: A microelectromechanical (MEMS) device is provided.
    Type: Application
    Filed: December 20, 2021
    Publication date: November 17, 2022
    Inventors: Seyed Omid Reza Moheimani, Afshin Alipour, Mustafa Bulut Coskun
  • Publication number: 20220082582
    Abstract: In the system and method disclosed, an ultrahigh vacuum (UHV) scanning tunneling microscope (STM) tip is used to selectively desorb hydrogen atoms from the Si(100)-2X1:H surface by injecting electrons at a negative sample bias voltage. A new lithography method is disclosed that allows the STM to operate under imaging conditions and simultaneously desorb H atoms as required. A high frequency signal is added to the negative sample bias voltage to deliver the required energy for hydrogen removal. The resulted current at this frequency and its harmonics are filtered to minimize their effect on the operation of the STM's feedback loop. This approach offers a significant potential for controlled and precise removal of hydrogen atoms from a hydrogen-terminated silicon surface and thus may be used for the fabrication of practical silicon-based atomic-scale devices.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 17, 2022
    Inventors: Seyed Omid Reza Moheimani, Hamed Alemansour
  • Patent number: 11143671
    Abstract: In the system and method disclosed, an ultrahigh vacuum (UHV) scanning tunneling microscope (STM) tip is used to selectively desorb hydrogen atoms from the Si(100)-2X1:H surface by injecting electrons at a negative sample bias voltage. A new lithography method is disclosed that allows the STM to operate under imaging conditions and simultaneously desorb H atoms as required. A high frequency signal is added to the negative sample bias voltage to deliver the required energy for hydrogen removal. The resulted current at this frequency and its harmonics are filtered to minimize their effect on the operation of the STM's feedback loop. This approach offers a significant potential for controlled and precise removal of hydrogen atoms from a hydrogen-terminated silicon surface and thus may be used for the fabrication of practical silicon-based atomic-scale devices.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: October 12, 2021
    Assignee: Board of Regents, The University of Texas System
    Inventors: Seyed Omid Reza Moheimani, Hamed Alemansour
  • Publication number: 20210132109
    Abstract: In the system and method disclosed, an ultrahigh vacuum (UHV) scanning tunneling microscope (STM) tip is used to selectively desorb hydrogen atoms from the Si(100)-2X1:H surface by injecting electrons at a negative sample bias voltage. A new lithography method is disclosed that allows the STM to operate under imaging conditions and simultaneously desorb H atoms as required. A high frequency signal is added to the negative sample bias voltage to deliver the required energy for hydrogen removal. The resulted current at this frequency and its harmonics are filtered to minimize their effect on the operation of the STM's feedback loop. This approach offers a significant potential for controlled and precise removal of hydrogen atoms from a hydrogen-terminated silicon surface and thus may be used for the fabrication of practical silicon-based atomic-scale devices.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 6, 2021
    Inventors: Seyed Omid Reza Moheimani, Hamed Alemansour
  • Publication number: 20210020825
    Abstract: Illustrative embodiments provide an apparatus comprising a substrate comprising a cantilever, a bottom electrode on the substrate, a bottom piezoelectric transducer on the bottom electrode such that the bottom electrode is between the substrate and the bottom piezoelectric transducer, a middle electrode on the bottom piezoelectric transducer such that the bottom piezoelectric transducer is between the bottom electrode and the middle electrode, a top piezoelectric transducer on the middle electrode such that the middle electrode is between the bottom piezoelectric transducer and the top piezoelectric transducer, and a top electrode on the top piezoelectric transducer, such that the top piezoelectric transducer is between the middle electrode and the top electrode. Illustrative embodiments also provide a method of making the apparatus and a method of using the apparatus for atomic force microscopy.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 21, 2021
    Inventors: Seyed Omid Reza Moheimani, Mohammad Mahdavi
  • Patent number: 10495665
    Abstract: Methods, devices, and systems for controlling a scanning tunneling microscope system are provided. In some embodiments, the methods, devices, and systems of the present disclosure utilize a control system included in or added to a scanning tunneling microscope (STM) to receive data characterizing a tunneling current between a tip of the scanning tunneling microscope system and a sample, to estimate, in real-time, a work function associated with the scanning tunneling microscope system, and to adjust, by a control system, a position of the tip based on an estimated work function. Associated systems are described herein.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 3, 2019
    Assignees: Zyvex Labs, LLC, Texas and Board of Regents, The University of Texas System
    Inventors: Seyed Omid Reza Moheimani, Farid Tajaddodianfar, Ehud Fuchs, John Randall, Joshua Ballard, James Owen
  • Publication number: 20180100875
    Abstract: Methods, devices, and systems for controlling a scanning tunneling microscope system are provided. In some embodiments, the methods, devices, and systems of the present disclosure utilize a control system included in or added to a scanning tunneling microscope (STM) to receive data characterizing a tunneling current between a tip of the scanning tunneling microscope system and a sample, to estimate, in real-time, a work function associated with the scanning tunneling microscope system, and to adjust, by a control system, a position of the tip based on an estimated work function. Associated systems are described herein.
    Type: Application
    Filed: September 18, 2017
    Publication date: April 12, 2018
    Applicants: ZYVEX LABS, LLC, Board of Regents, The University of Texas System
    Inventors: Seyed Omid Reza Moheimani, Farid Tajaddodianfar, Ehud Fuchs, John Randall, Joshua Ballard, James Owen