Patents by Inventor Ju-Il Choi

Ju-Il Choi 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: 11094612
    Abstract: A semiconductor device can include a substrate that has a surface. A via structure can extend through the substrate toward the surface of the substrate, where the via structure includes an upper surface. A pad structure can be on the surface of the substrate, where the pad structure can include a lower surface having at least one protrusion that is configured to protrude toward the upper surface of the via structure.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: August 17, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Il Choi, Kwang-Jin Moon, Byung-Lyul Park, Jin-Ho An, Atsushi Fujisaki
  • Publication number: 20210233879
    Abstract: Disclosed is a semiconductor device including a conductive pattern on a substrate, a passivation layer on the substrate and including an opening that partially exposes the conductive pattern, and a pad structure in the opening of the passivation layer and connected to the conductive pattern. The pad structure includes a first metal layer that fills the opening of the passivation layer and has a width greater than that of the opening, and a second metal layer on the first metal layer. The first metal layer has a first thickness at an outer wall of the first metal layer, a second thickness on a top surface of the passivation layer, and a third thickness on a top surface of the conductive pattern. The second thickness is greater than the first thickness, and the third thickness is greater than the second thickness.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju-il CHOI, Kwangjin MOON, Sujeong PARK, JuBin SEO, Jin Ho AN, Dong-chan LIM, Atsushi FUJISAKI
  • Patent number: 11043445
    Abstract: A semiconductor device is provided. The semiconductor device includes a first insulating interlayer disposed on a first surface of a substrate; a pad pattern disposed on a lower surface of the first insulating interlayer, the pad pattern including a first copper pattern; and a through silicon via passing through the substrate and the first insulating interlayer, and contacting the first copper pattern of the pad pattern. The through silicon via includes a first portion passing through the substrate and the first insulating interlayer, and a second portion under the first portion and extending to a portion of the first copper pattern in the pad pattern. A boundary of the through silicon via has a bent portion between the first portion and the second portion.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Bin Seo, Su-Jeong Park, Tae-Seong Kim, Kwang-Jin Moon, Dong-Chan Lim, Ju-Il Choi
  • Patent number: 11018101
    Abstract: A semiconductor device includes a conductive component on a substrate, a passivation layer on the substrate and including an opening that exposes at least a portion of the conductive component, and a pad structure in the opening and located on the passivation layer, the pad structure being electrically connected to the conductive component. The pad structure includes a lower conductive layer conformally extending on an inner sidewall of the opening, the lower conductive layer including a conductive barrier layer, a first seed layer, an etch stop layer, and a second seed layer that are sequentially stacked, a first pad layer on the lower conductive layer and at least partially filling the opening, and a second pad layer on the first pad layer and being in contact with a peripheral portion of the lower conductive layer located on the top surface of the passivation layer.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: May 25, 2021
    Inventors: Ju-il Choi, Kwang-jin Moon, Ju-bin Seo, Dong-chan Lim, Atsushi Fujisaki, Ho-jin Lee
  • Patent number: 11004814
    Abstract: Disclosed is a semiconductor device including a conductive pattern on a substrate, a passivation layer on the substrate and including an opening that partially exposes the conductive pattern, and a pad structure in the opening of the passivation layer and connected to the conductive pattern. The pad structure includes a first metal layer that fills the opening of the passivation layer and has a width greater than that of the opening, and a second metal layer on the first metal layer. The first metal layer has a first thickness at an outer wall of the first metal layer, a second thickness on a top surface of the passivation layer, and a third thickness on a top surface of the conductive pattern. The second thickness is greater than the first thickness, and the third thickness is greater than the second thickness.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 11, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-il Choi, Kwangjin Moon, Sujeong Park, JuBin Seo, Jin Ho An, Dong-chan Lim, Atsushi Fujisaki
  • Publication number: 20210090984
    Abstract: There are provided semiconductor packages including a redistribution substrate and a semiconductor chip mounted on the redistribution substrate. The redistribution substrate may include a lower protective layer, a first conductive pattern disposed on the lower protective layer, a first insulating layer surrounding the first conductive pattern and disposed on the lower protective layer, and a second insulating layer disposed on the first insulating layer. The first insulating layer may include a first upper surface that includes a first flat portion extending parallel to an upper surface of the lower protective layer, and a first recess facing the lower protective layer and in contact with the first conductive pattern. The first recess may be directly connected to the first conductive pattern.
    Type: Application
    Filed: March 26, 2020
    Publication date: March 25, 2021
    Inventors: JINHO CHUN, JIN HO AN, TEAHWA JEONG, JEONGGI JIN, JU-IL CHOI, ATSUSHI FUJISAKI
  • Publication number: 20200402935
    Abstract: Semiconductor devices are provided. A semiconductor device includes an insulating layer and a conductive element in the insulating layer. The semiconductor device includes a first barrier pattern in contact with a surface of the conductive element and a surface of the insulating layer. The semiconductor device includes a second barrier pattern on the first barrier pattern. Moreover, the semiconductor device includes a metal pattern on the second barrier pattern. Related semiconductor packages are also provided.
    Type: Application
    Filed: February 27, 2020
    Publication date: December 24, 2020
    Inventors: JU-IL CHOI, UN-BYOUNG KANG, JIN HO AN, JONGHO LEE, JEONGGI JIN, ATSUSHI FUJISAKI
  • Patent number: 10872869
    Abstract: Disclosed are semiconductor devices and methods of manufacturing the same. The method includes providing a semiconductor substrate, forming a redistribution line on a top surface of the semiconductor substrate, and forming a passivation layer to cover the redistribution line on the top surface of the semiconductor substrate. The forming a redistribution line includes a first stage of forming a first segment of the redistribution line on the top surface of the semiconductor substrate, and a second stage of forming a second segment of the redistribution line on the first segment of the redistribution line. An average grain size of the second segment of the redistribution line is less than an average grain size of the first segment of the redistribution line.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 22, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeonggi Jin, Ju-Il Choi, Teahwa Jeong, Atsushi Fujisaki
  • Publication number: 20200357690
    Abstract: An integrated circuit device includes a substrate, a landing pad on the substrate, and a through-via structure passing through the substrate and connected to the landing pad. The through-via structure may include a conductive plug, a first conductive barrier layer covering a sidewall and a lower surface of the conductive plug, and a second conductive barrier layer covering a sidewall of the first conductive barrier layer.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Su-jeong PARK, Dong-chan LIM, Kwang-jin MOON, Ju Bin SEO, Ju-Il CHOI, Atsushi FUJISAKI
  • Patent number: 10777487
    Abstract: An integrated circuit (IC) device includes a semiconductor substrate having a via hole extending through at least a part thereof, a conductive structure in the via hole, a conductive barrier layer adjacent the conductive structure; and a via insulating layer interposed between the semiconductor substrate and the conductive barrier layer. The conductive barrier layer may include an outer portion oxidized between the conductive barrier layer and the via insulating layer, and the oxidized outer portion of the conductive barrier layer may substantially surrounds the remaining portion of the conductive barrier layer.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: September 15, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-il Choi, Kun-sang Park, Son-kwan Hwang, Ji-soon Park, Byung-lyul Park
  • Patent number: 10763163
    Abstract: An integrated circuit device includes a substrate, a landing pad on the substrate, and a through-via structure passing through the substrate and connected to the landing pad. The through-via structure may include a conductive plug, a first conductive barrier layer covering a sidewall and a lower surface of the conductive plug, and a second conductive barrier layer covering a sidewall of the first conductive barrier layer.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: September 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Su-jeong Park, Dong-chan Lim, Kwang-jin Moon, Ju-bin Seo, Ju-il Choi, Atsushi Fujisaki
  • Publication number: 20200144158
    Abstract: A semiconductor device is provided. The semiconductor device includes a first insulating interlayer disposed on a first surface of a substrate; a pad pattern disposed on a lower surface of the first insulating interlayer, the pad pattern including a first copper pattern; and a through silicon via passing through the substrate and the first insulating interlayer, and contacting the first copper pattern of the pad pattern. The through silicon via includes a first portion passing through the substrate and the first insulating interlayer, and a second portion under the first portion and extending to a portion of the first copper pattern in the pad pattern. A boundary of the through silicon via has a bent portion between the first portion and the second portion.
    Type: Application
    Filed: April 17, 2019
    Publication date: May 7, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Bin SEO, Su-Jeong PARK, Tae-Seong KIM, Kwang-Jin MOON, Dong-Chan LIM, Ju-Il CHOI
  • Publication number: 20200098711
    Abstract: A semiconductor device and a semiconductor package, the device including a first buffer dielectric layer on a first dielectric layer; a second dielectric layer and a second buffer dielectric layer sequentially disposed on the first buffer dielectric layer, the second buffer dielectric layer being in contact with the first buffer dielectric layer; and a pad interconnection structure that penetrates the first buffer dielectric layer and the second buffer dielectric layer, wherein the pad interconnection structure includes copper and tin.
    Type: Application
    Filed: May 7, 2019
    Publication date: March 26, 2020
    Inventors: Ju-Il CHOI, Pil-Kyu KANG, Hoechul KIM, Hoonjoo NA, Jaehyung PARK, Seongmin SON
  • Publication number: 20200075524
    Abstract: A semiconductor device including a substrate including a first conductive pad on a first surface thereof, at least one first bump structure on the first conductive pad, the first bump structure including a first connecting member and a first delamination prevention layer, the first delamination prevention layer on the first connecting member and having a greater hardness than the first connecting member, and a first encapsulant above the first surface of the substrate and surrounding the first bump structure may be provided.
    Type: Application
    Filed: March 18, 2019
    Publication date: March 5, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju Bin SEO, Dong Hoon LEE, Ju Il CHOI, Su Jeong PARK, Dong Chan LIM
  • Publication number: 20190385964
    Abstract: Disclosed is a semiconductor device including a conductive pattern on a substrate, a passivation layer on the substrate and including an opening that partially exposes the conductive pattern, and a pad structure in the opening of the passivation layer and connected to the conductive pattern. The pad structure includes a first metal layer that fills the opening of the passivation layer and has a width greater than that of the opening, and a second metal layer on the first metal layer. The first metal layer has a first thickness at an outer wall of the first metal layer, a second thickness on a top surface of the passivation layer, and a third thickness on a top surface of the conductive pattern. The second thickness is greater than the first thickness, and the third thickness is greater than the second thickness.
    Type: Application
    Filed: January 10, 2019
    Publication date: December 19, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju-il Choi, Kwangjin Moon, Sujeong Park, JuBin Seo, Jin Ho An, Dong-chan Lim, Atsushi Fujisaki
  • Publication number: 20190259718
    Abstract: A semiconductor device includes a conductive component on a substrate, a passivation layer on the substrate and including an opening that exposes at least a portion of the conductive component, and a pad structure in the opening and located on the passivation layer, the pad structure being electrically connected to the conductive component. The pad structure includes a lower conductive layer conformally extending on an inner sidewall of the opening, the lower conductive layer including a conductive barrier layer, a first seed layer, an etch stop layer, and a second seed layer that are sequentially stacked, a first pad layer on the lower conductive layer and at least partially filling the opening, and a second pad layer on the first pad layer and being in contact with a peripheral portion of the lower conductive layer located on the top surface of the passivation layer.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventors: Ju-il Choi, Kwang-jin Moon, Ju-bin Seo, Dong-chan Lim, Atsushi Fujisaki, Ho-jin Lee
  • Patent number: 10325869
    Abstract: A semiconductor device includes a conductive component on a substrate, a passivation layer on the substrate and including an opening that exposes at least a portion of the conductive component, and a pad structure in the opening and located on the passivation layer, the pad structure being electrically connected to the conductive component.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 18, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-il Choi, Kwang-jin Moon, Ju-bin Seo, Dong-chan Lim, Atsushi Fujisaki, Ho-jin Lee
  • Publication number: 20190027450
    Abstract: A semiconductor device includes a conductive component on a substrate, a passivation layer on the substrate and including an opening that exposes at least a portion of the conductive component, and a pad structure in the opening and located on the passivation layer, the pad structure being electrically connected to the conductive component. The pad structure includes a lower conductive layer conformally extending on an inner sidewall of the opening, the lower conductive layer including a conductive barrier layer, a first seed layer, an etch stop layer, and a second seed layer that are sequentially stacked, a first pad layer on the lower conductive layer and at least partially filling the opening, and a second pad layer on the first pad layer and being in contact with a peripheral portion of the lower conductive layer located on the top surface of the passivation layer.
    Type: Application
    Filed: January 12, 2018
    Publication date: January 24, 2019
    Inventors: Ju-il Choi, Kwang-jin Moon, Ju-bin Seo, Dong-chan Lim, Atsushi Fujisaki, Ho-jin Lee
  • Publication number: 20190013260
    Abstract: An integrated circuit (IC) device includes a semiconductor substrate having a via hole extending through at least a part thereof, a conductive structure in the via hole, a conductive barrier layer adjacent the conductive structure; and a via insulating layer interposed between the semiconductor substrate and the conductive barrier layer. The conductive barrier layer may include an outer portion oxidized between the conductive barrier layer and the via insulating layer, and the oxidized outer portion of the conductive barrier layer may substantially surrounds the remaining portion of the conductive barrier layer.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 10, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ju-il CHOI, Kun-sang PARK, Son-kwan HWANG, Ji-soon PARK, Byung-lyul PARK
  • Patent number: 10128168
    Abstract: An integrated circuit (IC) device includes a semiconductor substrate having a via hole extending through at least a part thereof, a conductive structure in the via hole, a conductive barrier layer adjacent the conductive structure; and a via insulating layer interposed between the semiconductor substrate and the conductive barrier layer. The conductive barrier layer may include an outer portion oxidized between the conductive barrier layer and the via insulating layer, and the oxidized outer portion of the conductive barrier layer may substantially surrounds the remaining portion of the conductive barrier layer.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: November 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-il Choi, Kun-sang Park, Son-kwan Hwang, Ji-soon Park, Byung-lyul Park