Patents by Inventor Vikrant Chauhan

Vikrant Chauhan 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: 20160225666
    Abstract: A method includes forming a plurality of sacrificial lines embedded in a first dielectric layer. A line merge opening and a line cut opening are formed in a hard mask layer formed above the first dielectric layer. Portions of the first dielectric layer exposed by the line merge opening are removed to define a line merge recess. A portion of a selected sacrificial line exposed by the line cut opening is removed to define a line cut recess between first and second segments of the selected sacrificial line. A second dielectric layer is formed in the line cut recess. The hard mask is removed. The plurality of sacrificial lines is replaced with a conductive material to define at least one line having third and fourth segments in locations previously occupied by the first and second segments and to define a line-merging conductive structure in the line merge recess.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 4, 2016
    Inventors: Guillaume Bouche, Jason E. Stephens, Vikrant Chauhan, Andy C. Wei
  • Publication number: 20160026748
    Abstract: One illustrative method disclosed herein involves, among other things, decomposing an initial circuit layout into first and second mask patterns, for the first mask pattern, identifying a first four-polygon pattern in the first mask pattern that violates a multi-polygon constraint rule, wherein the first four-polygon pattern comprises four polygons positioned side-by-side in the first mask pattern, and recoloring one or two of the polygons in the first four-polygon pattern in the first mask pattern to the second mask pattern to eliminate the first four-polygon pattern from the first mask pattern without introducing any design rule violations in the initial circuit layout.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: Ahmed Hassan, Nader Magdy Hindawy, Vikrant Chauhan, Jason Eugene Stephens, David Pritchard, Abbas Guvenilir, David E. Brown, Terry J. Bordelon, Jr.
  • Publication number: 20150050811
    Abstract: An illustrative test structure is disclosed herein that includes a plurality of first line features and a plurality of second line features. In this embodiment, each of the second line features have first and second opposing ends and the first and second line features are arranged in a grating pattern such that the first ends of the first line features are aligned to define a first side of the grating structure and the second ends of the first features are aligned to define a second side of the grating structure that is opposite the first side of the grating structure. The first end of the second line features has a first end that extends beyond the first side of the grating structure while the second end of the second line features has a first end that extends beyond the second side of the grating structure.
    Type: Application
    Filed: October 29, 2014
    Publication date: February 19, 2015
    Inventors: Sohan Mehta, Tong Qing Chen, Vikrant Chauhan, Ravi Srivastava, Catherine Labelle, Mark Kelling
  • Patent number: 8932961
    Abstract: An illustrative test structure is disclosed herein that includes a plurality of first line features and a plurality of second line features. In this embodiment, each of the second line features have first and second opposing ends and the first and second line features are arranged in a grating pattern such that the first ends of the first line features are aligned to define a first side of the grating structure and the second ends of the first features are aligned to define a second side of the grating structure that is opposite the first side of the grating structure. The first end of the second line features has a first end that extends beyond the first side of the grating structure while the second end of the second line features has a first end that extends beyond the second side of the grating structure.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: January 13, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Sohan Mehta, Tong Qing Chen, Vikrant Chauhan, Ravi Srivastava, Catherine Labelle, Mark Kelling
  • Patent number: 8856715
    Abstract: Methodologies enabling BEoL VNCAPs in ICs and resulting devices are disclosed. Embodiments include: providing a plurality of mandrel recesses extending horizontally on a substrate, each of the mandrel recesses having an identical width and being separated from another one of the mandrel recesses by an identical distance; providing a plurality of routes, each of the plurality of routes being positioned in a different one of the mandrel recesses; and providing first and second vertical segments on the substrate, the first vertical segment being connected to a set of the plurality of routes and separated from the second vertical segment, and the second vertical segment being separated from the set of routes.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 7, 2014
    Assignee: GlobalFoundries Inc.
    Inventors: Jason Stephens, Vikrant Chauhan, Lawrence Clevenger, Ning Lu, Albert Chu
  • Publication number: 20130207108
    Abstract: An illustrative test structure is disclosed herein that includes a plurality of first line features and a plurality of second line features. In this embodiment, each of the second line features have first and second opposing ends and the first and second line features are arranged in a grating pattern such that the first ends of the first line features are aligned to define a first side of the grating structure and the second ends of the first features are aligned to define a second side of the grating structure that is opposite the first side of the grating structure. The first end of the second line features has a first end that extends beyond the first side of the grating structure while the second end of the second line features has a first end that extends beyond the second side of the grating structure.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 15, 2013
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Sohan Mehta, Tong Qing Chen, Vikrant Chauhan, Ravi Srivastava, Catherine Labelle, Mark Kelling