Patents by Inventor Joel K. W. Yang

Joel K. W. Yang 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: 9233393
    Abstract: A method for plasmonic structure manufacture and for protecting a plasmonic nanostructure during annealing is provided. The method includes: lithographically forming a plasmonic nanostructure on a substrate; encapsulating the plasmonic nanostructure in high temperature resistant material; annealing the plasmonic nanostructure; and removing the high temperature resistant material to reveal the annealed plasmonic nanostructure.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: January 12, 2016
    Assignee: Agency for Science, Technology and Research
    Inventors: Joel K. W. Yang, Michel Bosman, Huigao Duan, Karthik Kumar, In Yee Phang
  • Publication number: 20130243947
    Abstract: A method for plasmonic structure manufacture and for protecting a plasmonic nanostructure during annealing is provided. The method includes: lithographically forming a plasmonic nanostructure on a substrate; encapsulating the plasmonic nano structure in high temperature resistant material; annealing the plasmonic nanostructure; and removing the high temperature resistant material to reveal the annealed plasmonic nano structure.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 19, 2013
    Applicant: Agency for Science, Technology and Research
    Inventors: Joel K.W. Yang, Michel Bosman, Huigao Duan, Karthik Kumar, In Yee Phang
  • Patent number: 8309278
    Abstract: Complex self-assembled patterns can be created using a sparse template and local changes to the shape or distribution of the posts of the template to direct pattern generation of block copolymer. The post spacing in the template is formed commensurate with the equilibrium periodicity of the block copolymer, which controls the orientation of the linear features. Further, the posts can be arranged such that the template occupies only a few percent of the area of the final self-assembled patterns. Local aperiodic features can be introduced by changing the period or motif of the lattice or by adding guiding posts. According to one embodiment, an array of carefully spaced and shaped posts, prepared by electron-beam patterning of an inorganic resist, can be used to template complex patterns in a cylindrical-morphology block copolymer. These complex self-assembled patterns can form a mask used in fabrication processes of arbitrary structures such as interconnect layouts.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 13, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Joel K. W. Yang, Karl K. Berggren, Yeon Sik Jung, Caroline A. Ross
  • Publication number: 20120009390
    Abstract: Complex self-assembled patterns can be created using a sparse template and local changes to the shape or distribution of the posts of the template to direct pattern generation of block copolymer. The post spacing in the template is formed commensurate with the equilibrium periodicity of the block copolymer, which controls the orientation of the linear features. Further, the posts can be arranged such that the template occupies only a few percent of the area of the final self-assembled patterns. Local aperiodic features can be introduced by changing the period or motif of the lattice or by adding guiding posts. According to one embodiment, an array of carefully spaced and shaped posts, prepared by electron-beam patterning of an inorganic resist, can be used to template complex patterns in a cylindrical-morphology block copolymer. These complex self-assembled patterns can form a mask used in fabrication processes of arbitrary structures such as interconnect layouts.
    Type: Application
    Filed: September 17, 2010
    Publication date: January 12, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Joel K. W. Yang, Karl K. Berggren, Yeon Sik Jung, Caroline A. Ross
  • Patent number: 7638751
    Abstract: A multi-element optical detector includes a plurality of optical detector elements capable of producing an output signal having information about the state of an incident electromagnetic radiation as a function of time. An active region includes a photosensitive region of one of the optical detector elements separated in part or in whole from the photosensitive region of at least one other optical detector element by a distance less than the wavelength of the electromagnetic radiation that the optical detector elements are being used to detect.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: December 29, 2009
    Assignee: Massachusetts Institute of Technology
    Inventors: Eric A. Dauler, Andrew J. Kerman, Karl K. Berggren, Vikas Anant, Joel K. W. Yang
  • Publication number: 20090050790
    Abstract: A multi-element optical detector includes a plurality of optical detector elements capable of producing an output signal having information about the state of an incident electromagnetic radiation as a function of time. An active region includes a photosensitive region of one of the optical detector elements separated in part or in whole from the photosensitive region of at least one other optical detector element by a distance less than the wavelength of the electromagnetic radiation that the optical detector elements are being used to detect.
    Type: Application
    Filed: May 9, 2008
    Publication date: February 26, 2009
    Inventors: Eric A. Dauler, Andrew J. Kerman, Karl K. Berggren, Vikas Anant, Joel K.W. Yang