Patents by Inventor Junru Ruan

Junru Ruan 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).

  • Publication number: 20210333785
    Abstract: A method for configuring a semiconductor manufacturing process, the method including: obtaining a first value of a first parameter based on measurements associated with a first operation of a process step in the semiconductor manufacturing process and a first sampling scheme; using a recurrent neural network to determine a predicted value of the first parameter based on the first value; and using the predicted value of the first parameter in configuring a subsequent operation of the process step in the semiconductor manufacturing process.
    Type: Application
    Filed: July 6, 2021
    Publication date: October 28, 2021
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Sarathi ROY, Edo Maria HULSEBOS, Roy WERKMAN, Junru RUAN
  • Patent number: 11086305
    Abstract: A method for configuring a semiconductor manufacturing process, the method including: obtaining a first value of a first parameter based on measurements associated with a first operation of a process step in the semiconductor manufacturing process and a first sampling scheme; using a recurrent neural network to determine a predicted value of the first parameter based on the first value; and using the predicted value of the first parameter in configuring a subsequent operation of the process step in the semiconductor manufacturing process.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 10, 2021
    Assignee: ASML Netherlands B.V.
    Inventors: Sarathi Roy, Edo Maria Hulsebos, Roy Werkman, Junru Ruan
  • Publication number: 20210165399
    Abstract: A method for configuring a semiconductor manufacturing process, the method including: obtaining a first value of a first parameter based on measurements associated with a first operation of a process step in the semiconductor manufacturing process and a first sampling scheme; using a recurrent neural network to determine a predicted value of the first parameter based on the first value; and using the predicted value of the first parameter in configuring a subsequent operation of the process step in the semiconductor manufacturing process.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Sarathi ROY, Edo Maria HULSEBOS, Roy WERKMAN, Junru RUAN
  • Patent number: 8729492
    Abstract: A multiple-deflection blanker for charged particle beam lithography includes a support structure, a first pair of electrodes mounted to the support structure and providing a first electric field, a second pair of electrodes mounted to the support structure and providing a second electric field, at least a third pair of electrodes mounted to the support structure and providing a third electric field, and a surface, such as, an aperture or knife edge, positioned to obstruct a charged particle beam passed through the electric fields. The blanker may include at least a fourth pair of electrodes providing a fourth electric field and apparatus for regulating the time of the excitation of the electric fields. Methods for exposing media to charged particles and aperture holders are also provided.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: May 20, 2014
    Assignee: The Research Foundation for The State University of New York
    Inventors: Junru Ruan, John G. Hartley, Gregory Denbeaux
  • Publication number: 20130193341
    Abstract: A multiple-deflection blanker for charged particle beam lithography includes a support structure, a first pair of electrodes mounted to the support structure and providing a first electric field, a second pair of electrodes mounted to the support structure and providing a second electric field, at least a third pair of electrodes mounted to the support structure and providing a third electric field, and a surface, such as, an aperture or knife edge, positioned to obstruct a charged particle beam passed through the electric fields. The blanker may include at least a fourth pair of electrodes providing a fourth electric field and apparatus for regulating the time of the excitation of the electric fields. Methods for exposing media to charged particles and aperture holders are also provided.
    Type: Application
    Filed: July 20, 2011
    Publication date: August 1, 2013
    Inventors: Junru Ruan, John G. Hartley, Gregory Denbeaux
  • Patent number: 8111379
    Abstract: Method and apparatus are provided for automated determination and adjustment of height and tilt of a substrate surface within a lithography system. The method includes: directing a beam of light onto the substrate surface, which reflects off the substrate surface as a reflected beam; optically splitting the reflected beam into a first reflected beam portion and a second reflected beam portion; impinging the first reflected beam portion onto a first detector plane of a first optical detector to generate intensity data, and impinging the second reflected beam portion onto a second detector plane of a second optical detector to generate intensity data, and utilizing the generated data in determining height and tilt of the substrate surface relative to a nominal writing plane of the lithography system. Responsive to the determination, focus or tilt of the system's writing beam, or position of the substrate surface within the system, is adjusted.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: February 7, 2012
    Assignee: The Research Foundation of State University of New York
    Inventor: Junru Ruan
  • Publication number: 20090296057
    Abstract: Method and apparatus are provided for automated determination and adjustment of height and tilt of a substrate surface within a lithography system. The method includes: directing a beam of light onto the substrate surface, which reflects off the substrate surface as a reflected beam; optically splitting the reflected beam into a first reflected beam portion and a second reflected beam portion; impinging the first reflected beam portion onto a first detector plane of a first optical detector to generate intensity data, and impinging the second reflected beam portion onto a second detector plane of a second optical detector to generate intensity data, and utilizing the generated data in determining height and tilt of the substrate surface relative to a nominal writing plane of the lithography system. Responsive to the determination, focus or tilt of the system's writing beam, or position of the substrate surface within the system, is adjusted.
    Type: Application
    Filed: May 27, 2008
    Publication date: December 3, 2009
    Applicant: THE RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK
    Inventor: Junru RUAN