Patents by Inventor Eun Sook Sohn

Eun Sook Sohn 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: 20210265244
    Abstract: A method for providing an electronic package structure includes providing a substrate having a die pad having a die pad top surface and an opposing die pad bottom surface, leads laterally spaced apart from the die pad, and a substrate encapsulant interposed between the die pad and the leads and includes a substrate top surface and an opposing substrate bottom surface. The substrate encapsulant is provided such that the die pad and the leads protrude outward from the substrate bottom surface. The method includes providing an electronic device having opposing major surfaces and a pair of opposing outer edges. The method includes connecting the electronic device to the substrate such that one major surface of the electronic device is spaced apart from the die pad top surface and upper surfaces of the leads, and the outer edges overlap an opposing pair of the leads.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Applicant: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Tae Kyung HWANG, Eun Sook SOHN, Won Joon KANG, Gi Jeong KIM
  • Patent number: 11011455
    Abstract: A method for providing an electronic package structure includes providing a substrate having a die pad having a die pad top surface and an opposing die pad bottom surface, leads laterally spaced apart from the die pad, and a substrate encapsulant interposed between the die pad and the leads and includes a substrate top surface and an opposing substrate bottom surface. The substrate encapsulant is provided such that the die pad and the leads protrude outward from the substrate bottom surface. The method includes providing an electronic device having opposing major surfaces and a pair of opposing outer edges. The method includes connecting the electronic device to the substrate such that one major surface of the electronic device is spaced apart from the die pad top surface and upper surfaces of the leads, and the outer edges overlap an opposing pair of the leads.
    Type: Grant
    Filed: February 10, 2018
    Date of Patent: May 18, 2021
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Tae Kyung Hwang, Eun Sook Sohn, Won Joon Kang, Gi Jeong Kim
  • Patent number: 10483222
    Abstract: A semiconductor device and a manufacturing method thereof are disclosed. A first insulation layer is formed on a semiconductor die, a redistribution layer electrically connected to a bond pad is formed on the first insulation layer, and a second insulation layer covers the redistribution layer. The second insulation layer is made of a cheap, non-photosensitive material. Accordingly, the manufacturing cost of the semiconductor device can be reduced.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: November 19, 2019
    Assignee: Amkor Technology, Inc.
    Inventors: Jong Sik Paek, Eun Sook Sohn, In Bae Park, Won Chul Do, Glenn A. Rinne
  • Publication number: 20180166365
    Abstract: A method for providing an electronic package structure includes providing a substrate having a die pad having a die pad top surface and an opposing die pad bottom surface, leads laterally spaced apart from the die pad, and a substrate encapsulant interposed between the die pad and the leads and includes a substrate top surface and an opposing substrate bottom surface. The substrate encapsulant is provided such that the die pad and the leads protrude outward from the substrate bottom surface. The method includes providing an electronic device having opposing major surfaces and a pair of opposing outer edges. The method includes connecting the electronic device to the substrate such that one major surface of the electronic device is spaced apart from the die pad top surface and upper surfaces of the leads, and the outer edges overlap an opposing pair of the leads.
    Type: Application
    Filed: February 10, 2018
    Publication date: June 14, 2018
    Applicant: Amkor Technology, Inc.
    Inventors: Tae Kyung HWANG, Eun Sook SOHN, Won Joon KANG, Gi Jeong KIM
  • Patent number: 9929075
    Abstract: An electronic package includes a lead frame structure having one or more structural features configured to improve board level reliability. In one embodiment, the structural feature comprises lead frame protrusions extending outward from the electronic package, which are configured to laterally engage solder structures used to attach the electronic package to a next level of assembly. In another embodiment, conductive bumps are attached to exposed portions of the lead frame in advance of next level assembly processes. In a further embodiment, the lead frame comprises laterally separated contact points for attaching an electron die and for attaching the electronic package to a next level of assembly.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: March 27, 2018
    Assignee: Amkor Technology, Inc.
    Inventors: Tae Kyung Hwang, Eun Sook Sohn, Won Joon Kang, Gi Jeong Kim
  • Patent number: 9524906
    Abstract: A semiconductor device and a manufacturing method thereof are disclosed. A first insulation layer is formed on a semiconductor die, a redistribution layer electrically connected to a bond pad is formed on the first insulation layer, and a second insulation layer covers the redistribution layer. The second insulation layer is made of a cheap, non-photosensitive material. Accordingly, the manufacturing cost of the semiconductor device can be reduced.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: December 20, 2016
    Assignee: AMKOR TECHNOLOGY, INC.
    Inventors: Jong Sik Paek, Eun Sook Sohn, In Bae Park, Won Chul Do, Glenn A. Rinne
  • Publication number: 20160260656
    Abstract: An electronic package includes a lead frame structure having one or more structural features configured to improve board level reliability. In one embodiment, the structural feature comprises lead frame protrusions extending outward from the electronic package, which are configured to laterally engage solder structures used to attach the electronic package to a next level of assembly. In another embodiment, conductive bumps are attached to exposed portions of the lead frame in advance of next level assembly processes. In a further embodiment, the lead frame comprises laterally separated contact points for attaching an electron die and for attaching the electronic package to a next level of assembly.
    Type: Application
    Filed: December 30, 2015
    Publication date: September 8, 2016
    Applicant: Amkor Technology, Inc.
    Inventors: Tae Kyung Hwang, Eun Sook Sohn, Won Joon Kang, Gi Jeong Kim
  • Patent number: 8618658
    Abstract: A semiconductor device and a fabrication method thereof are provided. An electrically conductive elastic member is formed on a semiconductor die, and a conductive bump is formed on the elastic member. Accordingly, since the conductive bump is formed on the elastic member, or to protrude from a top surface of the elastic member, the height and thus diameter of the conductive bump is reduced allowing a fine pitch to be realized. Further, the elastic member is elastic and thus mitigates external impacts from being transferred from the conductive bump to the semiconductor die.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: December 31, 2013
    Inventors: Jong Sik Paek, Won Chul Do, Eun Sook Sohn
  • Patent number: 8492893
    Abstract: A semiconductor device is disclosed. A conductive pillar for electrically connecting a semiconductor die to a circuit board may be gradually slimmed from the semiconductor die to the circuit board. A dummy conductive layer may be disposed between the semiconductor die and the conductive pillar. A width of an opening for opening a pattern of the circuit board may range from about 50% to 90% of the width of the lower end of the conductive pillar. Accordingly, a mechanical stress is prevented from being transmitted from the conductive pillar to the semiconductor die, or is absorbed by the dummy conductive layer, and thus, preventing cracks of the semiconductor die and a dielectric layer having a low dielectric constant.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: July 23, 2013
    Assignee: Amkor Technology, Inc.
    Inventors: Eun Sook Sohn, Jin Young Kim, Tae Kyung Hwang
  • Patent number: 8487420
    Abstract: In accordance with the present invention, there is provided multiple embodiments of a package-in-package semiconductor device including shortened electrical signal paths to optimize electrical performance. The semiconductor device comprises a substrate having a conductive pattern formed thereon. In each embodiment of the semiconductor device, a semiconductor package and one or more semiconductor dies are vertically stacked upon the substrate, and placed into electrical communication with the conductive pattern thereof. In certain embodiments, a semiconductor die which is electrically connected to the conductive pattern of the substrate may be fully or partially covered with a film-over-wire. Additionally, in each embodiment of the semiconductor device, the vertically stacked electronic components thereof may be covered with a package body which also partially covers the substrate.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: July 16, 2013
    Assignee: Amkor Technology, Inc.
    Inventors: Chan Ha Hwang, Eun Sook Sohn, Ho Choi, Byong Jin Kim, Ji Yeon Yu, Min Woo Lee
  • Patent number: 8362612
    Abstract: A semiconductor device and a manufacturing method thereof are disclosed. A first insulation layer is formed on a semiconductor die, a redistribution layer electrically connected to a bond pad is formed on the first insulation layer, and a second insulation layer covers the redistribution layer. The second insulation layer is made of a cheap, non-photosensitive material. Accordingly, the manufacturing cost of the semiconductor device can be reduced.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: January 29, 2013
    Assignee: Amkor Technology, Inc.
    Inventors: Jong Sik Paek, Eun Sook Sohn, In Bae Park, Won Chul Do, Glenn A. Rinne
  • Patent number: 8193624
    Abstract: A semiconductor package assembly has a first semiconductor package. A plurality of first solder balls is attached to the first semiconductor package. A circuit board is provided having a plurality of mounting pads that is electrically connected to the plurality of first solder balls. A first underfill is disposed on each of the plurality of first solder balls. The first underfill is disposed on interfaces between each of the plurality of first solder balls and the first semiconductor package and each of the plurality of first solder balls and the circuit board. The first underfill is removed from an area between adjacent first solder balls.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: June 5, 2012
    Assignee: Amkor Technology, Inc.
    Inventor: Eun Sook Sohn
  • Patent number: 8026589
    Abstract: In accordance with the present invention, there is provided multiple embodiments of a reduced profile stackable semiconductor package. The semiconductor package comprises a substrate having at least one semiconductor die attached thereto. The semiconductor die is also electrically connected to the substrate by a plurality of conductive wires. A package body defining opposed top and bottom surfaces and a side surface at least partially encapsulates the substrate, the conductive wires and the semiconductor die. The package body is formed such that at least portions of the conductive wires are exposed in the top surface thereof. The package body may include a groove formed in the top surface thereof, with at least portions of the conductive wires being exposed in the groove.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: September 27, 2011
    Assignee: Amkor Technology, Inc.
    Inventors: Bong Chan Kim, Do Hyung Kim, Chan Ha Hwang, Min Woo Lee, Eun Sook Sohn, Won Joon Kang
  • Patent number: 6936922
    Abstract: An electrical substrate useful for semiconductor packages is disclosed. The electrical substrate includes a core insulative layer. A first surface of the insulative layer has circuit patterns thereon. Some of the circuit patterns are stepped in their heights from the first surface, in that a first subportion of the circuit pattern, including a ball land, extends further from the first surface than a second subportion of the same circuit pattern, and also extends further from the first surface than a ball land of other circuit patterns. Accordingly, solder balls fused to the ball lands of the stepped circuit patterns extend further from the first surface than same-size solder balls fused to the ball lands of the non-stepped circuit patterns, thereby circumventing electrical connectivity problems that may arise from warpage of the electrical substrate.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 30, 2005
    Assignee: Amkor Technology, Inc.
    Inventors: Sung Soon Park, Sang Jae Jang, Choon Heung Lee, Seon Goo Lee, Eun Sook Sohn, Sung Su Park