Patents by Inventor Varun B. Verma

Varun B. Verma 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).

  • Porous device for optical and electronic applications and method of fabricating the porous device
    Patent number: 8222988
    Abstract: A porous device for optical and electronic applications comprises a single crystal substrate and a porous single crystal structure epitaxially disposed on the substrate, where the porous single crystal structure includes a three-dimensional arrangement of pores. The three-dimensional arrangement may also be a periodic arrangement. A method of fabricating such a device includes forming a scaffold comprising interconnected elements on a single crystal substrate, where the interconnected elements are separated by voids. A first material is grown epitaxially on the substrate and into the voids. The scaffold is then removed to obtain a porous single crystal structure epitaxially disposed on the substrate, where the single crystal structure comprises the first material and includes pores defined by the interconnected elements of the scaffold.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 17, 2012
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Paul V. Braun, James J. Coleman, Victor C. Elarde, Erik C. Nelson, Varun B. Verma
  • Porous device for optical and electronic applications and method of fabricating the porous device
    Publication number: 20100065889
    Abstract: A porous device for optical and electronic applications comprises a single crystal substrate and a porous single crystal structure epitaxially disposed on the substrate, where the porous single crystal structure includes a three-dimensional arrangement of pores. The three-dimensional arrangement may also be a periodic arrangement. A method of fabricating such a device includes forming a scaffold comprising interconnected elements on a single crystal substrate, where the interconnected elements are separated by voids. A first material is grown epitaxially on the substrate and into the voids. The scaffold is then removed to obtain a porous single crystal structure epitaxially disposed on the substrate, where the single crystal structure comprises the first material and includes pores defined by the interconnected elements of the scaffold.
    Type: Application
    Filed: July 30, 2009
    Publication date: March 18, 2010
    Inventors: Paul V. Braun, James J. Coleman, Victor C. Elarde, Erik C. Nelson, Varun B. Verma