Patents by Inventor Nilay A. Pradhan

Nilay A. Pradhan 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: 20230013095
    Abstract: Techniques for adjusting the shape of an ion beam are described. Characteristics of a desired beam shape may be defined. The ion beam generator may include beam shaping elements associated with tunable parameters that can be set in combination with each other. A search space for the possible combinations is defined. A set of exploratory points in the search space are measured and used to interpolate a large number of interpolated points based on a regression model. Interpolated points that are associated with low confidence values may be measured. Based on the measured and interpolated points, clusters of tunable parameter combinations may be identified for evaluation. The clusters are evaluated for stability and sensitivity, and one of the clusters is selected based on the evaluation. The ion beam generator may be configured based on the selected cluster.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 19, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Richard Allen Sprenkle, Richard White, Eric Donald Wilson, Shane Conley, Ana Samolov, Nilay A. Pradhan
  • Patent number: 9455196
    Abstract: A method of processing a workpiece to create a doped fin structure is disclosed. A portion of the workpiece is subjected to a pre-amorphizing implant to create an amorphized region. This amorphized region is then implanted with dopant species, at an implant energy and dose so that the dopant species are contained within the amorphized region. The doped amorphized region is then subjected to a laser melt anneal which crystallizes the amorphized region. The dopant profile is box-like, and the dopant is confined to the previously amorphized region.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: September 27, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Nilay A. Pradhan, Benjamin Colombeau, Hans-Joachim L. Gossmann
  • Publication number: 20160133523
    Abstract: A method of processing a workpiece to create a doped fin structure is disclosed. A portion of the workpiece is subjected to a pre-amorphizing implant to create an amorphized region. This amorphized region is then implanted with dopant species, at an implant energy and dose so that the dopant species are contained within the amorphized region. The doped amorphized region is then subjected to a laser melt anneal which crystallizes the amorphized region. The dopant profile is box-like, and the dopant is confined to the previously amorphized region.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 12, 2016
    Inventors: Nilay A. Pradhan, Benjamin Colombeau, Hans-Joachim L. Gossmann
  • Patent number: 9337314
    Abstract: A method to selectively process a three dimensional device, comprising providing a substrate having a first surface that extends horizontally, the substrate comprising a structure containing a second surface that extends vertically from the first surface; providing a film on the substrate, the film comprising carbon species; and etching a selected portion of the film by exposing the selected portion of the film to an etchant containing hydrogen species, where the etchant excludes oxygen species and fluorine species.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: May 10, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Nilay A. Pradhan, Benjamin Colombeau, Naushad K. Variam, Mandar B. Pandit, Christopher Dennis Bencher, Adam Brand
  • Publication number: 20140162414
    Abstract: A method to selectively process a three dimensional device, comprising providing a substrate having a first surface that extends horizontally, the substrate comprising a structure containing a second surface that extends vertically from the first surface; providing a film on the substrate, the film comprising carbon species; and etching a selected portion of the film by exposing the selected portion of the film to an etchant containing hydrogen species, where the etchant excludes oxygen species and fluorine species.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 12, 2014
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Nilay A. Pradhan, Benjamin Colombeau, Naushad K. Variam, Mandar B. Pandit, Christopher Dennis Bencher, Adam Brand