Patents by Inventor Woojae SHIN

Woojae SHIN 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: 11644745
    Abstract: A photolithography method is provided. The photolithography method includes forming a photoresist layer on a wafer, exposing a portion of the photoresist layer by using an exposure device and a mask, and forming a photoresist pattern by removing a non-exposed portion of the photoresist layer. The mask includes a substrate having a main pattern area and a blocking area outside the main pattern area, a main pattern on the main pattern area of the substrate, and a blocking pattern on the blocking area of the substrate. An external circumference of the blocking pattern extends to the maximum area of the mask that may be illuminated by the exposure device or to the outside of the maximum area of the mask.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: May 9, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yongwook Lee, Yongwoo Kim, Seunggu Baek, Woojae Shin
  • Publication number: 20210165316
    Abstract: A photolithography method is provided. The photolithography method includes forming a photoresist layer on a wafer, exposing a portion of the photoresist layer by using an exposure device and a mask, and forming a photoresist pattern by removing a non-exposed portion of the photoresist layer. The mask includes a substrate having a main pattern area and a blocking area outside the main pattern area, a main pattern on the main pattern area of the substrate, and a blocking pattern on the blocking area of the substrate. An external circumference of the blocking pattern extends to the maximum area of the mask that may be illuminated by the exposure device or to the outside of the maximum area of the mask.
    Type: Application
    Filed: June 19, 2020
    Publication date: June 3, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yongwook Lee, Yongwoo Kim, Seunggu Baek, Woojae Shin
  • Patent number: 10877698
    Abstract: A semiconductor device may include a media controller configured to output a write requested address when a write request to a nonvolatile memory device is provided from a host; and a cold address manager. The cold address manager may include a stack storing meta data for the write requested address, region information storage configured to manage addresses of the nonvolatile memory device with regions such that length of a region of the regions may vary after a predetermined period, a cold address detector configured to update the stack and the region information storage after the predetermined period and to detect whether an address of the nonvolatile memory device is a cold address, the cold address having write requests performed at less than a predetermined level.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: December 29, 2020
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Hyunmin Jung, Sunwoong Kim, Hyokeun Lee, Woojae Shin, Hyuk-Jae Lee
  • Patent number: 10713159
    Abstract: A semiconductor device may include a media controller configured to output an address in response to receiving a write request for writing to a nonvolatile memory. The semiconductor device may also include a hot address detector. The hot address detector is configured to store a list including the address output from the media controller and including meta data related to the address, to update the meta data according to the address output from the media controller, to determine whether the address output from the media controller is a hot address, and to adjust a length of the list.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 14, 2020
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Hyunmin Jung, Sunwoong Kim, Hyokeun Lee, Woojae Shin, Hyuk-Jae Lee
  • Publication number: 20200012454
    Abstract: A semiconductor device may include a media controller configured to output a write requested address when a write request to a nonvolatile memory device is provided from a host; and a cold address manager. The cold address manager may include a stack storing meta data for the write requested address, region information storage configured to manage addresses of the nonvolatile memory device with regions such that length of a region of the regions may vary after a predetermined period, a cold address detector configured to update the stack and the region information storage after the predetermined period and to detect whether an address of the nonvolatile memory device is a cold address, the cold address having write requests performed at less than a predetermined level.
    Type: Application
    Filed: June 6, 2019
    Publication date: January 9, 2020
    Inventors: Hyunmin JUNG, Sunwoong KIM, Hyokeun LEE, Woojae SHIN, Hyuk-Jae LEE
  • Publication number: 20190196956
    Abstract: A semiconductor device may include a media controller configured to output an address in response to receiving a write request for writing to a nonvolatile memory. The semiconductor device may also include a hot address detector. The hot address detector is configured to store a list including the address output from the media controller and including meta data related to the address, to update the meta data according to the address output from the media controller, to determine whether the address output from the media controller is a hot address, and to adjust a length of the list.
    Type: Application
    Filed: July 13, 2018
    Publication date: June 27, 2019
    Applicants: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Hyunmin JUNG, Sunwoong KIM, Hyokeun LEE, Woojae SHIN, Hyuk-Jae LEE