Patents by Inventor Shakti S. Chauhan

Shakti S. 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).

  • Patent number: 10631410
    Abstract: The present disclosure is related to printed circuit board packages and methods of assembly that may be used in the fabrication of electrical devices. Printed circuit board packages may be manufactured by stacking printed circuit board assemblies. Each printed circuit board assembly may have multiple printed circuit boards supported by a resin mold. The printed circuit board assemblies may be shaped to improve space utilization efficiency and to accommodate large electrical components that are attached to the printed circuit board package.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 21, 2020
    Assignee: Apple Inc.
    Inventors: Corey S. Provencher, Meng Chi Lee, Derek J. Walters, Ian A. Spraggs, Flynn P. Carson, Shakti S. Chauhan, Daniel W. Jarvis, David A. Pakula, Jun Zhai, Michael V. Yeh, Alex J. Crumlin, Dennis R. Pyper, Amir Salehi, Vu T. Vo, Gregory N. Stephens
  • Patent number: 10535611
    Abstract: Packages including substrate-less integrated components and methods of fabrication are described are described. In an embodiment, a packaging method includes attaching a ground structure to a carrier and a plurality of components face down to the carrier and laterally adjacent to the ground structure. The plurality of components are encapsulated within a molding compound, and the carrier is removed exposing a plurality of component terminals and a plurality of ground structure terminals. A plurality of packages are singulated.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 14, 2020
    Assignee: Apple Inc.
    Inventors: Flynn P. Carson, Jun Chung Hsu, Meng Chi Lee, Shakti S. Chauhan
  • Patent number: 10522475
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed on an upper surface of an encapsulant encapsulating the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The metal shield may be electrically coupled to the ground layer using one or more conductive structures located in the encapsulant. The conductive structures may be located on a perimeter of the components in the SiP. The conductive structures may provide a substantially vertical connection between the substrate and the shield on the upper surface of the encapsulant.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: December 31, 2019
    Assignee: Apple Inc.
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Publication number: 20190027445
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed on an upper surface of an encapsulant encapsulating the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The metal shield may be electrically coupled to the ground layer using one or more conductive structures located in the encapsulant. The conductive structures may be located on a perimeter of the components in the SiP. The conductive structures may provide a substantially vertical connection between the substrate and the shield on the upper surface of the encapsulant.
    Type: Application
    Filed: September 26, 2018
    Publication date: January 24, 2019
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Patent number: 10147685
    Abstract: Electrical components may be packaged using system-in-package configurations or other component packages. Integrated circuit dies and other electrical components may be soldered or otherwise mounted on printed circuits. A layer of encapsulant may be used to encapsulate the integrated circuits. A shielding layer may be formed on the encapsulant layer to shield the integrate circuits. The shielding layer may include a sputtered metal seed layer and an electroplated layer of magnetic material. The electroplated layer may be a magnetic material that has a high permeability such as permalloy or mu metal to provide magnetic shielding for the integrated circuits. Integrated circuits may be mounted on one or both sides of the printed circuit. A temporary carrier and sealant may be used to hold the encapsulated integrated circuits during electroplating.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: December 4, 2018
    Assignee: Apple Inc.
    Inventors: Phillip R. Sommer, Shankar Pennathur, Meng Chi Lee, Shakti S. Chauhan, Yanfeng Chen
  • Patent number: 10115677
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed on an upper surface of an encapsulant encapsulating the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The metal shield may be electrically coupled to the ground layer using one or more conductive structures located in the encapsulant. The conductive structures may be located on a perimeter of the components in the SiP. The conductive structures may provide a substantially vertical connection between the substrate and the shield on the upper surface of the encapsulant.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: October 30, 2018
    Assignee: Apple Inc.
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Patent number: 10109593
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed over the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The substrate of the SiP may include at least some metallization along vertical walls in the end portions of the substrate. The metallization may provide a large contact area for coupling the metal shield to a ground ring coupled to the ground layer in the PCB. The metallization along the vertical walls in the end portions of the substrate may be formed as through-metal vias in a common substrate before singulation to form the SiP.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 23, 2018
    Assignee: Apple Inc.
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Publication number: 20180092213
    Abstract: The present disclosure is related to printed circuit board packages and methods of assembly that may be used in the fabrication of electrical devices. Printed circuit board packages may be manufactured by stacking printed circuit board assemblies. Each printed circuit board assembly may have multiple printed circuit boards supported by a resin mold. The printed circuit board assemblies may be shaped to improve space utilization efficiency and to accommodate large electrical components that are attached to the printed circuit board package.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 29, 2018
    Inventors: Corey S. Provencher, Meng Chi Lee, Derek J. Walters, Ian A. Spraggs, Flynn P. Carson, Shakti S. Chauhan, Daniel W. Jarvis, David A. Pakula, Jun Zhai, Michael V. Yeh, Alex J. Crumlin, Dennis R. Pyper, Amir Salehi, Vu T. Vo, Gregory N. Stephens
  • Publication number: 20170301631
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed on an upper surface of an encapsulant encapsulating the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The metal shield may be electrically coupled to the ground layer using one or more conductive structures located in the encapsulant. The conductive structures may be located on a perimeter of the components in the SiP. The conductive structures may provide a substantially vertical connection between the substrate and the shield on the upper surface of the encapsulant.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 19, 2017
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Publication number: 20170263569
    Abstract: Electrical components may be packaged using system-in-package configurations or other component packages. Integrated circuit dies and other electrical components may be soldered or otherwise mounted on printed circuits. A layer of encapsulant may be used to encapsulate the integrated circuits. A shielding layer may be formed on the encapsulant layer to shield the integrate circuits. The shielding layer may include a sputtered metal seed layer and an electroplated layer of magnetic material. The electroplated layer may be a magnetic material that has a high permeability such as permalloy or mu metal to provide magnetic shielding for the integrated circuits. Integrated circuits may be mounted on one or both sides of the printed circuit. A temporary carrier and sealant may be used to hold the encapsulated integrated circuits during electroplating.
    Type: Application
    Filed: January 10, 2017
    Publication date: September 14, 2017
    Inventors: Phillip R. Sommer, Shankar Pennathur, Meng Chi Lee, Shakti S. Chauhan, Yanfeng Chen
  • Patent number: 9721903
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed on an upper surface of an encapsulant encapsulating the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The metal shield may be electrically coupled to the ground layer using one or more conductive structures located in the encapsulant. The conductive structures may be located on a perimeter of the components in the SiP. The conductive structures may provide a substantially vertical connection between the substrate and the shield on the upper surface of the encapsulant.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 1, 2017
    Assignee: Apple Inc.
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Publication number: 20170179039
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed on an upper surface of an encapsulant encapsulating the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The metal shield may be electrically coupled to the ground layer using one or more conductive structures located in the encapsulant. The conductive structures may be located on a perimeter of the components in the SiP. The conductive structures may provide a substantially vertical connection between the substrate and the shield on the upper surface of the encapsulant.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 22, 2017
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin
  • Publication number: 20170148744
    Abstract: Packages including substrate-less integrated components and methods of fabrication are described are described. In an embodiment, a packaging method includes attaching a ground structure to a carrier and a plurality of components face down to the carrier and laterally adjacent to the ground structure. The plurality of components are encapsulated within a molding compound, and the carrier is removed exposing a plurality of component terminals and a plurality of ground structure terminals. A plurality of packages are singulated.
    Type: Application
    Filed: February 12, 2016
    Publication date: May 25, 2017
    Inventors: Flynn P. Carson, Jun Chung Hsu, Meng Chi Lee, Shakti S. Chauhan
  • Publication number: 20170025361
    Abstract: A system in package (SiP) is disclosed that uses an EMI shield to inhibit EMI or other electrical interference on the components within the SiP. A metal shield may be formed over the SiP. The metal shield may be electrically coupled to a ground layer in a printed circuit board (PCB) to form the EMI shield around the SiP. The substrate of the SiP may include at least some metallization along vertical walls in the end portions of the substrate. The metallization may provide a large contact area for coupling the metal shield to a ground ring coupled to the ground layer in the PCB. The metallization along the vertical walls in the end portions of the substrate may be formed as through-metal vias in a common substrate before singulation to form the SiP.
    Type: Application
    Filed: November 20, 2015
    Publication date: January 26, 2017
    Inventors: Meng Chi Lee, Shakti S. Chauhan, Flynn P. Carson, Jun Chung Hsu, Tha-An Lin