Patents by Inventor Kwangeun KIM

Kwangeun KIM 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: 20220404395
    Abstract: A test apparatus includes a movable stage to support a sample, tips above the stage that have different shapes and alternately perform profiling and milling on the sample, a tip stage connected to a cantilever coupled to the tips, the tip stage to adjust a position of the cantilever, a position sensor to obtain information about a positional relationship between the tips and the sample, a stage controller to control movements of the stage and the tip stage, based on the information about the positional relationship, and a tip controller to select the tips for performing the profiling or milling and to determine conditions for performing milling, wherein a depth of the sample being processed by the milling in the first direction is controlled based on a relationship between a distance between the tips and the sample and a force between the tips and the sample.
    Type: Application
    Filed: April 15, 2022
    Publication date: December 22, 2022
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Sungyoon RYU, Seungbum HONG, Kwangeun KIM, Hoon KIM, Jiwon YEOM, Seokjung YUN, Souk KIM, Younghoon SOHN, Yusin YANG
  • Publication number: 20220374051
    Abstract: An electronic device is provided. The electronic device includes a housing which includes a mounting portion and an inner wall portion extending in a first direction with respect to the mounting portion, a printed circuit board which includes an outer wall portion that is parallel to the inner wall portion of the housing, a clip member including a clip portion which is arranged at a position adjacent to the outer wall portion of the printed circuit board to be electrically connected to the printed circuit board and which protrudes toward the inner wall portion, a protruding guide which is spaced apart from the clip portion in a second direction that is opposite to the first direction, and which protrudes from the outer wall portion of the printed circuit board toward the inner wall portion of the housing, and a guide recess formed in the inner wall portion of the housing.
    Type: Application
    Filed: August 2, 2022
    Publication date: November 24, 2022
    Inventors: Kwangeun GO, Kwangmin GIL, Taesik KIM, Minhyuk NAM, Myungjae JO
  • Patent number: 11428645
    Abstract: According to embodiments, a wafer inspection device is provided. The wafer inspection device includes a porous chuck including a plurality of pores formed all over the porous chuck to allow pressure for fixing a wafer to be applied thereto, a chuck driving device, a back side inspection optical system configured to inspect a portion of a back surface of the wafer, and a position identification optical system, wherein the porous chuck includes a plurality of holes uniformly formed all over the porous chuck to partially expose the back surface of the wafer and a slit exposing the back surface of the wafer and extending in one direction parallel to a top surface of the porous chuck.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: August 30, 2022
    Assignees: Samsung Electronics Co., Ltd., Advanced Technology Inc.
    Inventors: Kihak Nam, Sungyoon Ryu, Kwangeun Kim, Hwiwoo Park, Dayoung Yoon, Myoungkyu Choi
  • Publication number: 20210247328
    Abstract: According to embodiments, a wafer inspection device is provided. The wafer inspection device includes a porous chuck including a plurality of pores formed all over the porous chuck to allow pressure for fixing a wafer to be applied thereto, a chuck driving device, a back side inspection optical system configured to inspect a portion of a back surface of the wafer, and a position identification optical system, wherein the porous chuck includes a plurality of holes uniformly formed all over the porous chuck to partially expose the back surface of the wafer and a slit exposing the back surface of the wafer and extending in one direction parallel to a top surface of the porous chuck.
    Type: Application
    Filed: September 21, 2020
    Publication date: August 12, 2021
    Applicants: Samsung Electronics Co., Ltd., ADVANCED TECHNOLOGY INC.
    Inventors: Kihak NAM, Sungyoon RYU, Kwangeun KIM, Hwiwoo PARK, Dayoung YOON, Myoungkyu CHOI
  • Patent number: 10217897
    Abstract: Light-emitting devices having a multiple quantum well (MQW) diode structure and methods of making and using the devices are provided. The devices include aluminum nitride/aluminum oxide bilayers on their hole injection layers. The bilayers improve the energy efficiency of the devices, with respect to devices that lack the bilayers or that include only a layer of aluminum oxide on their hole injection layers.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: February 26, 2019
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Zhenqiang Ma, Kwangeun Kim
  • Publication number: 20120155567
    Abstract: Disclosed herein is a data transmission apparatus including: a clock generating unit generating a clock signal by combining a first unit clock signal and a second unit clock signal formed by delaying the first unit clock signal by a predetermined time; a transmission controlling unit transmitting data in synchronization with the generated clock signal, thereby making it possible to transmit more data at a high speed.
    Type: Application
    Filed: March 22, 2011
    Publication date: June 21, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Kwangeun KIM