Patents by Inventor Pavan Vishwanath

Pavan Vishwanath 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).

  • Sintering materials and attachment methods using same
    Patent number: 11389865
    Abstract: Methods for die attachment of multichip and single components including flip chips may involve printing a sintering paste on a substrate or on the back side of a die. Printing may involve stencil printing, screen printing, or a dispensing process. Paste may be printed on the back side of an entire wafer prior to dicing, or on the back side of an individual die. Sintering films may also be fabricated and transferred to a wafer, die or substrate. A post-sintering step may increase throughput.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: July 19, 2022
    Assignee: Alpha Assembly Solutions Inc.
    Inventors: Shamik Ghoshal, V. Sathish Kumar, Pavan Vishwanath, Ranjit S. Pandher, Remya Chandran, Sutapa Mukherjee, Siuli Sarkar, Bawa Singh, Ravindra Mohan Bhatkal
  • SINTERING POWDER
    Publication number: 20220169905
    Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.
    Type: Application
    Filed: October 4, 2021
    Publication date: June 2, 2022
    Applicant: Alpha Assembly Solutions Inc.
    Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana de Avila Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
  • Sintering paste
    Patent number: 11162007
    Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 2, 2021
    Assignee: Alpha Assembly Solutions Inc.
    Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana de Avila Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
  • Sintering Powder
    Publication number: 20190194517
    Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana de Avila Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
  • Sintering powder
    Patent number: 10259980
    Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: April 16, 2019
    Assignee: Alpha Assembly Solutions Inc.
    Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
  • Sintering Materials and Attachment Methods Using Same
    Publication number: 20170144221
    Abstract: Methods for die attachment of multichip and single components including flip chips may involve printing a sintering paste on a substrate or on the back side of a die. Printing may involve stencil printing, screen printing, or a dispensing process. Paste may be printed on the back side of an entire wafer prior to dicing, or on the back side of an individual die. Sintering films may also be fabricated and transferred to a wafer, die or substrate. A post-sintering step may increase throughput.
    Type: Application
    Filed: June 12, 2015
    Publication date: May 25, 2017
    Inventors: Shamik GHOSHAL, V. Sathish KUMAR, Pavan VISHWANATH, Ranjit S. PANDHER, Remya CHANDRAN, Sutapa MUKHERJEE, Siuli SARKAR, Bawa SINGH, Ravindra Mohan BHATKAL
  • SINTERING POWDER
    Publication number: 20150353804
    Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.
    Type: Application
    Filed: October 29, 2013
    Publication date: December 10, 2015
    Applicant: ALPHA METALS, INC.
    Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki