Patents by Inventor Toan Trong Tran

Toan Trong Tran 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: 11377740
    Abstract: Methods and systems for direct lithographic pattern definition based upon electron beam induced alteration of the surface chemistry of a substrate are described. The methods involve an initial chemical treatment for global definition of a specified surface chemistry (SC). Electron beam induced surface reactions between a gaseous precursor and the surface are then used to locally alter the SC. High resolution patterning of stable, specified surface chemistries upon a substrate can thus be achieved. The defined patterns can then be utilized for selective material deposition via methods which exploit the specificity of certain SC combinations or by differences in surface energy. It is possible to perform all steps in-situ without breaking vacuum.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: July 5, 2022
    Assignee: FEI Company
    Inventors: James Bishop, Toan Trong Tran, Igor Aharonovich, Charlene Lobo, Milos Toth
  • Publication number: 20200190669
    Abstract: Methods and systems for direct lithographic pattern definition based upon electron beam induced alteration of the surface chemistry of a substrate are described. The methods involve an initial chemical treatment for global definition of a specified surface chemistry (SC). Electron beam induced surface reactions between a gaseous precursor and the surface are then used to locally alter the SC. High resolution patterning of stable, specified surface chemistries upon a substrate can thus be achieved. The defined patterns can then be utilized for selective material deposition via methods which exploit the specificity of certain SC combinations or by differences in surface energy. It is possible to perform all steps in-situ without breaking vacuum.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 18, 2020
    Applicant: FEI Company
    Inventors: James Bishop, Toan Trong Tran, Igor Aharonovich, Charlene Lobo, Milos Toth
  • Patent number: 10538844
    Abstract: Methods and systems for direct lithographic pattern definition based upon electron beam induced alteration of the surface chemistry of a substrate are described. The methods involve an initial chemical treatment for global definition of a specified surface chemistry (SC). Electron beam induced surface reactions between a gaseous precursor and the surface are then used to locally alter the SC. High resolution patterning of stable, specified surface chemistries upon a substrate can thus be achieved. The defined patterns can then be utilized for selective material deposition via methods which exploit the specificity of certain SC combinations or by differences in surface energy. It is possible to perform all steps in-situ without breaking vacuum.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: January 21, 2020
    Assignee: FEI Company
    Inventors: James Bishop, Toan Trong Tran, Igor Aharonovich, Charlene Lobo, Milos Toth
  • Publication number: 20170073814
    Abstract: Methods and systems for direct lithographic pattern definition based upon electron beam induced alteration of the surface chemistry of a substrate are described. The methods involve an initial chemical treatment for global definition of a specified surface chemistry (SC). Electron beam induced surface reactions between a gaseous precursor and the surface are then used to locally alter the SC. High resolution patterning of stable, specified surface chemistries upon a substrate can thus be achieved. The defined patterns can then be utilized for selective material deposition via methods which exploit the specificity of certain SC combinations or by differences in surface energy. It is possible to perform all steps in-situ without breaking vacuum.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 16, 2017
    Applicant: FEI Company
    Inventors: James Bishop, Toan Trong Tran, Igor Aharonovich, Charlene Lobo, Milos Toth