Patents by Inventor Jagen KRISHNAN

Jagen KRISHNAN 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: 10651109
    Abstract: A method of forming a semiconductor device includes providing a semiconductor package comprising an electrically insulating mold compound body, a semiconductor die that is encapsulated by the mold compound body, a plurality of electrically conductive leads that each protrude out of the mold compound body, and a metal heat slug, the metal heat slug comprising a rear surface that is exposed from the mold compound body, coating outer portions of the leads that are exposed from the mold compound body with a metal coating, and after completing the coating of the outer portions of the leads, providing a planar metallic heat sink interface surface on the semiconductor device which is exposed from the mold compound body, and substantially devoid of the metal coating.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: May 12, 2020
    Assignee: Infineon Technologies AG
    Inventors: Syahir Abd Hamid, Jagen Krishnan, Mian Mian Lam, Jayaganasan Narayanasamy, Fabian Schnoy, Thomas Stoek, Christian Stuempfl
  • Publication number: 20200020621
    Abstract: A semiconductor package having an electrically insulating mold compound body, a metal heat slug and a plurality of electrically conductive leads is provided. The heat slug has a rear surface that is exposed from the mold compound body and a die attach surface opposite the rear surface and to which a semiconductor die is mounted. each of the leads have outer portions that are exposed from the mold compound body. The outer portions of the leads are coated with a metal coating. After completing the coating of the outer portions of the leads, a planar metallic heat sink interface surface is provided on the semiconductor device. The planar metallic heat sink interface surface is exposed from the mold compound body, thermally coupled to the semiconductor die via the heat slug, and substantially devoid of the metal coating.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 16, 2020
    Inventors: Syahir Abd Hamid, Jagen Krishnan, Jayaganasan Narayanasamy
  • Publication number: 20200020607
    Abstract: A method of forming a semiconductor device includes providing a semiconductor package comprising an electrically insulating mold compound body, a semiconductor die that is encapsulated by the mold compound body, a plurality of electrically conductive leads that each protrude out of the mold compound body, and a metal heat slug, the metal heat slug comprising a rear surface that is exposed from the mold compound body, coating outer portions of the leads that are exposed from the mold compound body with a metal coating, and after completing the coating of the outer portions of the leads, providing a planar metallic heat sink interface surface on the semiconductor device which is exposed from the mold compound body, and substantially devoid of the metal coating.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 16, 2020
    Inventors: Syahir Abd Hamid, Jagen Krishnan, Mian Mian Lam, Jayaganasan Narayanasamy, Fabian Schnoy, Thomas Stoek, Christian Stuempfl
  • Patent number: 10457001
    Abstract: A method for forming a matrix composite layer on a workpiece and a workpiece with a matrix composite layer are disclosed. In an embodiment the method includes forming a wall around a metallic surface such that the wall extends in a vertical direction from a plane formed by the metallic surface, and depositing a filler material in a walled area on the metallic surface. The method further includes depositing a plastic material on the filler material and performing a vacuum treatment of the filler material and the plastic material thereby forming a matrix composite layer disposed on the metallic surface.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 29, 2019
    Assignee: Infineon Technologies AG
    Inventors: Jayaganasan Narayanasamy, Jagen Krishnan, Sanjay Kumar Murugan, Hong Lim Lee
  • Publication number: 20180297301
    Abstract: A method for forming a matrix composite layer on a workpiece and a workpiece with a matrix composite layer are disclosed. In an embodiment the method includes forming a wall around a metallic surface such that the wall extends in a vertical direction from a plane formed by the metallic surface, and depositing a filler material in a walled area on the metallic surface. The method further includes depositing a plastic material on the filler material and performing a vacuum treatment of the filler material and the plastic material thereby forming a matrix composite layer disposed on the metallic surface.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 18, 2018
    Inventors: Jayaganasan Narayanasamy, Jagen Krishnan, Sanjay Kumar Murugan, Hong Lim Lee
  • Patent number: 10096508
    Abstract: In various embodiments, an assembly for handling a semiconductor die is provided. The assembly may include a carrier with a surface. The assembly may also include an adhesive tape fixed to the surface of the carrier. The adhesive tape may be configured to adhere to the semiconductor die. The adhesive tape may include adhesive, the adhesion of which can be reduced by means of electromagnetic waves. The assembly may further include an electromagnetic source configured to apply electromagnetic waves to the adhesive tape to reduce adhesion of the adhesive tape to the semiconductor die. The assembly may additionally include a die pick-up component configured to pick up the semiconductor die from the adhesive tape.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: October 9, 2018
    Assignee: Infineon Technologies AG
    Inventors: Ronald Paramio Joves, Thanabal Ganesh Kunamani, Kuang Ming Lee, Avelino Oliveros Sumagpoa, Kian Heong Tan, Nestor Vergara Bicomong, Jagen Krishnan, Soon Hock Tong
  • Patent number: 9852918
    Abstract: An electronic device comprising a carrier having a mounting surface, at least one electronic chip mounted on the mounting surface, an encapsulant at least partially encapsulating the carrier and the at least one electronic chip, and a plurality of capsules in the encapsulant, wherein the capsules comprise a core comprising an additive and comprise a shell, in particular a crackable shell, enclosing the core.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: December 26, 2017
    Assignee: Infineon Technologies AG
    Inventors: Peh Hean Teh, Jagen Krishnan, Swee Kah Lee, Poh Cheng Lim, Joachim Mahler, Chew Theng Tai, Yik Yee Tan, Soon Lock Goh
  • Patent number: 9540539
    Abstract: A primer composition is provided. The primer composition includes at least one bi- or multi-functional benzoxazine compound; and at least one compound including a functional group having affinity for a metallic surface, and a cross-linkable group. A method of forming a primer layer on a semiconductor device, and a method of encapsulating a semiconductor device are also provided.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: January 10, 2017
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Joachim Mahler, Chew Theng Tai, Yik Yee Tan, Soon Lock Goh, Poh Cheng Lim, Jagen Krishnan, Peh Hean Teh
  • Publication number: 20160064298
    Abstract: An electronic device comprising a carrier having a mounting surface, at least one electronic chip mounted on the mounting surface, an encapsulant at least partially encapsulating the carrier and the at least one electronic chip, and a plurality of capsules in the encapsulant, wherein the capsules comprise a core comprising an additive and comprise a shell, in particular a crackable shell, enclosing the core.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Inventors: Peh Hean TEH, Jagen Krishnan, Swee Kah Lee, Poh Cheng Lim, Joachim Mahler, Chew Theng Tai, Yik Yee Tan, Soon Lock Goh
  • Publication number: 20160049325
    Abstract: In various embodiments, an assembly for handling a semiconductor die is provided. The assembly may include a carrier with a surface. The assembly may also include an adhesive tape fixed to the surface of the carrier. The adhesive tape may be configured to adhere to the semiconductor die. The adhesive tape may include adhesive, the adhesion of which can be reduced by means of electromagnetic waves. The assembly may further include an electromagnetic source configured to apply electromagnetic waves to the adhesive tape to reduce adhesion of the adhesive tape to the semiconductor die. The assembly may additionally include a die pick-up component configured to pick up the semiconductor die from the adhesive tape.
    Type: Application
    Filed: August 14, 2015
    Publication date: February 18, 2016
    Inventors: Ronald PARAMIO JOVES, Thanabal Ganesh KUNAMANI, Kuang Ming LEE, Avelino OLIVEROS SUMAGPOA, Kian Heong TAN, Nestor VERGARA BICOMONG, Jagen KRISHNAN, Soon Hock TONG
  • Publication number: 20150344730
    Abstract: A primer composition is provided. The primer composition includes at least one bi- or multi-functional benzoxazine compound; and at least one compound including a functional group having affinity for a metallic surface, and a cross-linkable group. A method of forming a primer layer on a semiconductor device, and a method of encapsulating a semiconductor device are also provided.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: Infineon Technologies AG
    Inventors: Swee Kah LEE, Joachim MAHLER, Chew Theng TAI, Yik Yee TAN, Soon Lock GOH, Poh Cheng LIM, Jagen KRISHNAN, Peh Hean TEH