Patents by Inventor S. Kumar Khanna

S. Kumar Khanna 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: 9777197
    Abstract: Illustrative embodiments of anisotropic conductive adhesive (ACA) and associated methods are disclosed. In one illustrative embodiment, the ACA may comprise a binder curable using UV light and a plurality of particles suspended in the binder. Each of the plurality of particles may comprise a ferromagnetic material coated with a layer of electrically conductive material. The electrically conducting material may form electrically conductive and isolated parallel paths when the ACA is cured using UV light after being subjected to a magnetic field.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: October 3, 2017
    Assignee: SUNRAY SCIENTIFIC, LLC
    Inventor: S. Kumar Khanna
  • Publication number: 20160254244
    Abstract: Illustrative embodiments of systems and method utilizing anisotropic conductive adhesive(s) (“ACA”) are disclosed. In at least one illustrative embodiment, a substrate may comprise one or more electrical contacts, and one or more integrated circuits may be secured to the substrate by ACA. The ACA may comprise a plurality of particles suspended in a binder, where the plurality of particles form electrically conductive and isolated parallel paths between the one or more electrical contacts and the one or more integrated circuits as a result of the ACA being subjected to a magnetic field before or during curing of the binder.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Inventor: S. Kumar Khanna
  • Patent number: 9365749
    Abstract: Illustrative embodiments of an anisotropic conductive adhesive (ACA) configured to be cured after being subjected to a magnetic field are disclosed. In at least one illustrative embodiment, the ACA may comprise a binder and a plurality of particles suspended in the binder. Each of the plurality of particles may comprise a ferromagnetic material coated with a layer of electrically conductive material and with a moisture barrier, such that the electrically conducting material forms electrically conductive and isolated parallel paths when the ACA is cured after being subjected to the magnetic field.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: June 14, 2016
    Assignee: Sunray Scientific, LLC
    Inventor: S. Kumar Khanna
  • Publication number: 20150107765
    Abstract: Illustrative embodiments of anisotropic conductive adhesive (ACA) and associated methods are disclosed. In one illustrative embodiment, the ACA may comprise a binder curable using UV light and a plurality of particles suspended in the binder. Each of the plurality of particles may comprise a ferromagnetic material coated with a layer of electrically conductive material. The electrically conducting material may form electrically conductive and isolated parallel paths when the ACA is cured using UV light after being subjected to a magnetic field.
    Type: Application
    Filed: October 13, 2014
    Publication date: April 23, 2015
    Inventor: S. Kumar Khanna
  • Publication number: 20140353540
    Abstract: Illustrative embodiments of an anisotropic conductive adhesive (ACA) configured to be cured after being subjected to a magnetic field are disclosed. In at least one illustrative embodiment, the ACA may comprise a binder and a plurality of particles suspended in the binder. Each of the plurality of particles may comprise a ferromagnetic material coated with a layer of electrically conductive material and with a moisture barrier, such that the electrically conducting material forms electrically conductive and isolated parallel paths when the ACA is cured after being subjected to the magnetic field.
    Type: Application
    Filed: October 15, 2013
    Publication date: December 4, 2014
    Applicant: SUNRAY SCIENTIFIC, LLC
    Inventor: S. Kumar Khanna
  • Patent number: 6909100
    Abstract: A semiconductor radiation detection crystal converts incident radiation or an incident particle into an electrical signal. A first substrate for conveying the electrical signal to processing electronics is bonded to the crystal via an anisotropic conductive material sandwiched therebetween. The crystal can include can array of pixels which are positioned in opposition with an array of conductive pads formed on the first substrate. The anisotropic conductive material forms between each pixel and its corresponding conductive pad an electrical path, with each electrical path isolated from other electrical paths.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: June 21, 2005
    Assignees: II-VI Incorporated, Nexaura Systems, LLC
    Inventors: Peter W. Sognefest, S. Kumar Khanna, Fernando A. Ferraro
  • Patent number: 6838022
    Abstract: An anisotropic conductive compound includes an electrically conducting material suspended in a binder. The electrically conducting material includes nickel coated particles having a coating of silver or gold over the nickel coat and/or gold or silver coated nickel particles. In one embodiment, the binder is formed from the reaction product of a catalyst and a compound comprising an aromatic epoxy resin, a dimer fatty acid diglycidyl ester and oxirane. In another embodiment, the binder is formed from the reaction product of a novalac resin, a catalyst and either a heat polymerized aromatic epoxy resin or a phenoxy modified epoxy novalac resin.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 4, 2005
    Assignee: Nexaura Systems, LLC
    Inventor: S. Kumar Khanna
  • Publication number: 20040161906
    Abstract: Conductive material or particles of an anisotropic conductive compound or material sandwiched between at least two aligned conductive contacts are vibrated mechanically, magnetically, or both mechanically and magnetically while the anisotropic conductive compound is curing. The conductive material is subjected to a static, substantially homogeneous DC magnetic field (i) before, (ii) following or (iii) at least partially during the time the conductive material is being vibrated.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Inventor: S. Kumar Khanna
  • Patent number: 6733613
    Abstract: An anisotropic conductive compound is cured by exposing it to heat while in the presence of an AC magnetic field followed by a static, substantially homogeneous DC magnetic field.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: May 11, 2004
    Inventor: S. Kumar Khanna
  • Publication number: 20040016505
    Abstract: An anisotropic conductive compound is cured by exposing it to heat while in the presence of an AC magnetic field followed by a static, substantially homogeneous DC magnetic field.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 29, 2004
    Applicant: Shiva Consulting, Inc.
    Inventor: S. Kumar Khanna
  • Publication number: 20040016911
    Abstract: An anisotropic conductive compound includes an electrically conducting material suspended in a binder. The electrically conducting material includes nickel coated particles having a coating of silver or gold over the nickel coat and/or gold or silver coated nickel particles. In one embodiment, the binder is formed from the reaction product of a catalyst and a compound comprising an aromatic epoxy resin, a dimer fatty acid diglycidyl ester and oxirane. In another embodiment, the binder is formed from the reaction product of a novalac resin, a catalyst and either a heat polymerized aromatic epoxy resin or a phenoxy modified epoxy novalac resin.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 29, 2004
    Applicant: Shiva Consulting, Inc.
    Inventor: S. Kumar Khanna
  • Publication number: 20040016913
    Abstract: A semiconductor radiation detection crystal converts incident radiation or an incident particle into an electrical signal. A first substrate for conveying the electrical signal to processing electronics is bonded to the crystal via an anisotropic conductive material sandwiched therebetween. The crystal can include can array of pixels which are positioned in opposition with an array of conductive pads formed on the first substrate. The anisotropic conductive material forms between each pixel and its corresponding conductive pad an electrical path, with each electrical path isolated from other electrical paths.
    Type: Application
    Filed: February 4, 2003
    Publication date: January 29, 2004
    Inventors: Peter W. Sognefest, S. Kumar Khanna, Fernando A. Ferraro