Patents by Inventor Taekeun Lee

Taekeun Lee 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: 20240371719
    Abstract: A semiconductor device has an electrical component and a heat sink disposed over the electrical component. The heat sink has a cover with a wall extending from the cover forming a pocket around a perimeter of the electrical component. The heat sink also has a horizontal step, and a riser extending from the horizontal step to the cover. The wall extends from the cover to form the pocket. A TIM is disposed between the cover and a surface of the electrical component. The TIM can be liquid metal. The heat sink is pressed onto the TIM under force and heat to distribute the TIM between the cover and surface of the electrical component. The TIM remains contained within the pocket by the wall. The wall or cover can have a vent hole. The TIM may extend over a side surface of the electrical component.
    Type: Application
    Filed: May 3, 2023
    Publication date: November 7, 2024
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: JongChan Park, YoungMin Kim, TaeKeun Lee
  • Patent number: 12125764
    Abstract: A semiconductor device has an electrical component and a first TIM with a first compliant property is disposed over a surface of the electrical component. A second TIM having a second compliant property greater than the first compliant property is disposed over the surface of the electrical component within the first TIM. A third TIM can be disposed over the surface of the electrical component along the first TIM. A heat sink is disposed over the first TIM and second TIM. The second TIM has a shape of a star pattern, grid of dots, parallel lines, serpentine, or concentric geometric shapes. The first TIM provides adhesion for joint reliability and the second TIM provides stress relief. Alternatively, a heat spreader is disposed over the first TIM and second TIM and a heat sink is disposed over a third TIM and fourth TIM on the heat spreader.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: October 22, 2024
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Youngcheol Kim, Youngmin Kim, Yongmin Kim
  • Publication number: 20240347373
    Abstract: A device for holding a package substrate is provided. The device comprises: a lower jig comprising a base material, and magnets embedded within the base material; and an upper jig comprising a frame and a grid pattern inside the frame, wherein the frame has a skirt portion that defines a gap between the lower jig and the grid pattern to accommodate the package substrate, and wherein the grid pattern is attractable by the magnets such that when the upper jig is placed on the lower jig to accommodate the package substrate the grid pattern is in contact with the package substrate to apply a pressure to the package substrate due to a magnetic interaction between the magnets and the grid pattern.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 17, 2024
    Inventors: JongChan PARK, YoungMin KIM, GilHo LEE, HyeongKwan KIM, TaeKeun LEE
  • Patent number: 12027125
    Abstract: A display device according to one aspect of the present disclosure includes: a substrate including a display area and a non-display area enclosing the display area; a plurality of pixels disposed in the display area; and a gate driving unit disposed in the non-display area on both sides of the display area and including a plurality of stages. The plurality of stages includes a plurality of normal output stages and a plurality of dummy stages which does not output a signal. The plurality of dummy stages may be connected to a gate low voltage line.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: July 2, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventor: TaeKeun Lee
  • Publication number: 20240170422
    Abstract: A method of making a semiconductor device involves the steps of disposing a first semiconductor die over a substrate and disposing a beam homogenizer over the first semiconductor die. A beam from the beam homogenizer impacts the first semiconductor die. The method further includes the steps of determining a positional offset of the beam relative to the first semiconductor die in a number of pixels, using a first calibration equation to convert the number of pixels into a distance in millimeters, and moving the beam homogenizer the distance in millimeters to align the beam and first semiconductor die.
    Type: Application
    Filed: January 31, 2024
    Publication date: May 23, 2024
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: Wagno Alves Braganca, JR., KyungOe Kim, TaeKeun Lee
  • Patent number: 11929334
    Abstract: A method of making a semiconductor device involves the steps of disposing a first semiconductor die over a substrate and disposing a beam homogenizer over the first semiconductor die. A beam from the beam homogenizer impacts the first semiconductor die. The method further includes the steps of determining a positional offset of the beam relative to the first semiconductor die in a number of pixels, using a first calibration equation to convert the number of pixels into a distance in millimeters, and moving the beam homogenizer the distance in millimeters to align the beam and first semiconductor die.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: March 12, 2024
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Wagno Alves Braganca, Jr., KyungOe Kim, TaeKeun Lee
  • Publication number: 20240063196
    Abstract: A semiconductor device has a semiconductor die, substrate, and plurality of first conductive pillars formed over the semiconductor die or substrate. Alternatively, the first conductive pillars formed over the semiconductor die and substrate. An electrical component is disposed over the semiconductor die. The electrical component can be a double-sided IPD. The semiconductor die and electrical component are disposed over the substrate. A shielding frame is disposed over the semiconductor die. A plurality of second conductive pillars is formed over a first surface of the electrical component. A plurality of third conductive pillars is formed over a second surface of the electrical component opposite the first surface of the electrical component. A bump cap can be formed over a distal end of the conductive pillars. The substrate has a cavity and the electrical component is disposed within the cavity. An underfill material is deposited between the semiconductor die and substrate.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 22, 2024
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Hyunil Bae
  • Patent number: 11830785
    Abstract: A semiconductor device has a substrate and a first semiconductor die disposed over the substrate. A subpackage is also disposed over the substrate. A stiffener is disposed over the substrate around the first semiconductor die and subpackage. A heat spreader is disposed over the stiffener. The heat spreader is thermally coupled to the first semiconductor die. The heat spreader has an opening over the subpackage.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: November 28, 2023
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Youngmin Kim, Yongmin Kim
  • Publication number: 20230352359
    Abstract: A semiconductor device has an electrical component and a first TIM with a first compliant property is disposed over a surface of the electrical component. A second TIM having a second compliant property greater than the first compliant property is disposed over the surface of the electrical component within the first TIM. A third TIM can be disposed over the surface of the electrical component along the first TIM. A heat sink is disposed over the first TIM and second TIM. The second TIM has a shape of a star pattern, grid of dots, parallel lines, serpentine, or concentric geometric shapes. The first TIM provides adhesion for joint reliability and the second TIM provides stress relief. Alternatively, a heat spreader is disposed over the first TIM and second TIM and a heat sink is disposed over a third TIM and fourth TIM on the heat spreader.
    Type: Application
    Filed: June 29, 2023
    Publication date: November 2, 2023
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Youngcheol Kim, Youngmin Kim, Yongmin Kim
  • Patent number: 11735489
    Abstract: A semiconductor device has an electrical component and a first TIM with a first compliant property is disposed over a surface of the electrical component. A second TIM having a second compliant property greater than the first compliant property is disposed over the surface of the electrical component within the first TIM. A third TIM can be disposed over the surface of the electrical component along the first TIM. A heat sink is disposed over the first TIM and second TIM. The second TIM has a shape of a star pattern, grid of dots, parallel lines, serpentine, or concentric geometric shapes. The first TIM provides adhesion for joint reliability and the second TIM provides stress relief. Alternatively, a heat spreader is disposed over the first TIM and second TIM and a heat sink is disposed over a third TIM and fourth TIM on the heat spreader.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 22, 2023
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Youngcheol Kim, Youngmin Kim, Yongmin Kim
  • Publication number: 20230215374
    Abstract: A display device according to one aspect of the present disclosure includes: a substrate including a display area and a non-display area enclosing the display area; a plurality of pixels disposed in the display area; and a gate driving unit disposed in the non-display area on both sides of the display area and including a plurality of stages. The plurality of stages includes a plurality of normal output stages and a plurality of dummy stages which does not output a signal. The plurality of dummy stages may be connected to a gate low voltage line.
    Type: Application
    Filed: November 9, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventor: TaeKeun LEE
  • Publication number: 20230118190
    Abstract: A semiconductor device has a substrate and a first semiconductor die disposed over the substrate. A subpackage is also disposed over the substrate. A stiffener is disposed over the substrate around the first semiconductor die and subpackage. A heat spreader is disposed over the stiffener. The heat spreader is thermally coupled to the first semiconductor die. The heat spreader has an opening over the subpackage.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 20, 2023
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Youngmin Kim, Yongmin Kim
  • Publication number: 20220406675
    Abstract: A semiconductor device has an electrical component and a first TIM with a first compliant property is disposed over a surface of the electrical component. A second TIM having a second compliant property greater than the first compliant property is disposed over the surface of the electrical component within the first TIM. A third TIM can be disposed over the surface of the electrical component along the first TIM. A heat sink is disposed over the first TIM and second TIM. The second TIM has a shape of a star pattern, grid of dots, parallel lines, serpentine, or concentric geometric shapes. The first TIM provides adhesion for joint reliability and the second TIM provides stress relief. Alternatively, a heat spreader is disposed over the first TIM and second TIM and a heat sink is disposed over a third TIM and fourth TIM on the heat spreader.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 22, 2022
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: TaeKeun Lee, Youngcheol Kim, Youngmin Kim, Yongmin Kim
  • Publication number: 20210296268
    Abstract: A method of making a semiconductor device involves the steps of disposing a first semiconductor die over a substrate and disposing a beam homogenizer over the first semiconductor die. A beam from the beam homogenizer impacts the first semiconductor die. The method further includes the steps of determining a positional offset of the beam relative to the first semiconductor die in a number of pixels, using a first calibration equation to convert the number of pixels into a distance in millimeters, and moving the beam homogenizer the distance in millimeters to align the beam and first semiconductor die.
    Type: Application
    Filed: October 12, 2020
    Publication date: September 23, 2021
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: Wagno Alves Braganca, JR., KyungOe Kim, TaeKeun Lee
  • Patent number: 10845639
    Abstract: Disclosed herein is a display device for increasing the transmittance of R, G, and B sub-pixels and reducing a transmittance of W sub-pixel through a pixel asymmetric design. To this end, the display device has a pixel asymmetric structure in which W sub-pixel has a different area from R, G and B sub-pixels. As a result, as the display device has an asymmetric structure in which the areas of W, R, G, and B sub-pixels are different from one another, particularly, an asymmetric structure in which the area of W sub-pixel is reduced and the area of R sub-pixel is increased. Such design has a structural advantage that the transmittance of R, G, and B sub-pixels can be increased and the transmittance of W sub-pixel can be lowered so that it is possible to correspond the product specifications in various ways.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 24, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Taekeun Lee, Sunggyu Kim
  • Patent number: 10635208
    Abstract: A display panel is provided having a built-in touchscreen and a touch display device including the same. The display panel has a touch electrode structure allowing parasitic capacitance to be dispersed to a greater number of gate lines, which form parasitic capacitance together with touch electrodes, without concentrically relying on specific gate lines. Differences in load between gate lines are reduced to improve image quality.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: April 28, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: TaeKeun Lee, SooYoung Choi, In Kang
  • Publication number: 20190204671
    Abstract: Disclosed herein is a display device designed to increase the transmittance of R, G, and B sub-pixels and to reduce a transmittance of W sub-pixel through a pixel asymmetric design in order to correspond to the product specifications. To this end, the display device according to the present disclosure has a pixel asymmetric structure in which W sub-pixel is designed to have a different area from R, G and B sub-pixels. As a result, as the display device according to the present disclosure has an asymmetric structure in which the areas of W, R, G, and B sub-pixels are different from one another, particularly, an asymmetric structure in which the area of W sub-pixel is reduced and the area of R sub-pixel is increased, it has a structural advantage that the transmittance of R, G, and B sub-pixels can be increased and the transmittance of W sub-pixel can be lowered so that it is possible to correspond the product specifications in various ways.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Taekeun LEE, Sunggyu KIM
  • Patent number: 9837007
    Abstract: Disclosed is an in-cell touch liquid crystal display (LCD) apparatus comprising: an active area in which a plurality of pixels are provided; and a pad area in which an auto probe test pattern is disposed, wherein the auto probe test pattern comprises a common voltage enable signal line; a common voltage switching unit; a data enable signal line through which a data enable signal is applied; and a data switching unit that is coupled to the data enable signal line and configured to be turned on by the data enable signal and output a data voltage. The common voltage enable signal line and the data enable signal line are disposed separately from each other.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: December 5, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: In Kang, TaeKeun Lee
  • Publication number: 20170115809
    Abstract: A display panel is provided having a built-in touchscreen and a touch display device including the same. The display panel has a touch electrode structure allowing parasitic capacitance to be dispersed to a greater number of gate lines, which form parasitic capacitance together with touch electrodes, without concentrically relying on specific gate lines. Differences in load between gate lines are reduced to improve image quality.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 27, 2017
    Inventors: TaeKeun LEE, SooYoung CHOI, In KANG
  • Publication number: 20160189582
    Abstract: Disclosed is an in-cell touch liquid crystal display (LCD) apparatus comprising: an active area in which a plurality of pixels are provided; and a pad area in which an auto probe test pattern is disposed, wherein the auto probe test pattern comprises a common voltage enable signal line; a common voltage switching unit; a data enable signal line through which a data enable signal is applied; and a data switching unit that is coupled to the data enable signal line and configured to be turned on by the data enable signal and output a data voltage. The common voltage enable signal line and the data enable signal line are disposed separately from each other.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 30, 2016
    Inventors: In KANG, TaeKeun LEE