Patents by Inventor Jongju AN

Jongju AN 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: 11934092
    Abstract: A laser annealing method performed on a reflective photomask may include preparing a reflective photomask including a pattern area and a border area surrounding the pattern area and irradiating a laser beam onto the border area of the reflective photomask. The irradiating of the laser beam may include split-irradiating a plurality of laser beam spots onto the border area. Each of the plurality of laser beam spots may be shaped using a beam shaper. The beam shaper may include a blind area, a transparent area at a center of the blind area, and a semitransparent area between the blind area and the transparent area. Each of the plurality of laser beam spots may include a center portion passing through the transparent area and having a uniform energy profile and an edge portion passing through the semitransparent area and having an inclined energy profile.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: March 19, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hakseung Han, Sanguk Park, Jongju Park, Raewon Yi
  • Patent number: 11852583
    Abstract: An apparatus and a method for correctly measuring a phase of an extreme ultraviolet (EUV) mask and a method of fabricating an EUV mask including the method are described. The apparatus for measuring the phase of the EUV mask includes an EUV light source configured to generate and output EUV light, at least one mirror configured to reflect the EUV light as reflected EUV light incident on an EUV mask to be measured, a mask stage on which the EUV mask is arranged, a detector configured to receive the EUV light reflected from the EUV mask, to obtain a two-dimensional (2D) image, and to measure reflectivity and diffraction efficiency of the EUV mask, and a processor configured to determine a phase of the EUV mask by using the reflectivity and diffraction efficiency of the EUV mask.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: December 26, 2023
    Inventors: Jongju Park, Raewon Yi, Hakseung Han, Seongsue Kim
  • Publication number: 20230408912
    Abstract: A method of manufacturing a photomask includes forming a photomask having a plurality of pattern elements, wherein the plurality of pattern elements include correction-target pattern elements having a critical dimension (CD) deviation; acquiring local CD correction information; directing a laser beam to a mirror array of a digital micromirror device (DMD), wherein the mirror array has mirrors arranged in a plurality of rows and a plurality of columns; converting the laser beam into a beam pattern array corresponding to the mirror array by controlling on/off switching of each of the mirrors based on the local CD correction information; forming a linear beam by focusing the beam pattern array through an optical system; applying an etchant to the photomask and directing the linear beam to the photomask and moving the linear beam to irradiate the photomask.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 21, 2023
    Inventors: Jongkeun OH, Yongwoo KIM, Suzy ROH, Jongju PARK
  • Publication number: 20230236124
    Abstract: An apparatus and a method for correctly measuring a phase of an extreme ultraviolet (EUV) mask and a method of fabricating an EUV mask including the method are described. The apparatus for measuring the phase of the EUV mask includes an EUV light source configured to generate and output EUV light, at least one mirror configured to reflect the EUV light as reflected EUV light incident on an EUV mask to be measured, a mask stage on which the EUV mask is arranged, a detector configured to receive the EUV light reflected from the EUV mask, to obtain a two-dimensional (2D) image, and to measure reflectivity and diffraction efficiency of the EUV mask, and a processor configured to determine a phase of the EUV mask by using the reflectivity and diffraction efficiency of the EUV mask.
    Type: Application
    Filed: March 7, 2023
    Publication date: July 27, 2023
    Inventors: Jongju Park, Raewon Yi, Hakseung Han, Seongsue Kim
  • Patent number: 11635371
    Abstract: An apparatus and a method for correctly measuring a phase of an extreme ultraviolet (EUV) mask and a method of fabricating an EUV mask including the method are described. The apparatus for measuring the phase of the EUV mask includes an EUV light source configured to generate and output EUV light, at least one mirror configured to reflect the EUV light as reflected EUV light incident on an EUV mask to be measured, a mask stage on which the EUV mask is arranged, a detector configured to receive the EUV light reflected from the EUV mask, to obtain a two-dimensional (2D) image, and to measure reflectivity and diffraction efficiency of the EUV mask, and a processor configured to determine a phase of the EUV mask by using the reflectivity and diffraction efficiency of the EUV mask.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 25, 2023
    Inventors: Jongju Park, Raewon Yi, Hakseung Han, Seongsue Kim
  • Publication number: 20230073206
    Abstract: A laser annealing method performed on a reflective photomask may include preparing a reflective photomask including a pattern area and a border area surrounding the pattern area and irradiating a laser beam onto the border area of the reflective photomask. The irradiating of the laser beam may include split-irradiating a plurality of laser beam spots onto the border area. Each of the plurality of laser beam spots may be shaped using a beam shaper. The beam shaper may include a blind area, a transparent area at a center of the blind area, and a semitransparent area between the blind area and the transparent area. Each of the plurality of laser beam spots may include a center portion passing through the transparent area and having a uniform energy profile and an edge portion passing through the semitransparent area and having an inclined energy profile.
    Type: Application
    Filed: October 24, 2022
    Publication date: March 9, 2023
    Inventors: Hakseung Han, Sanguk Park, Jongju Park, Raewon Yi
  • Patent number: 11506968
    Abstract: A laser annealing method performed on a reflective photomask may include preparing a reflective photomask including a pattern area and a border area surrounding the pattern area and irradiating a laser beam onto the border area of the reflective photomask. The irradiating of the laser beam may include split-irradiating a plurality of laser beam spots onto the border area. Each of the plurality of laser beam spots may be shaped using a beam shaper. The beam shaper may include a blind area, a transparent area at a center of the blind area, and a semitransparent area between the blind area and the transparent area. Each of the plurality of laser beam spots may include a center portion passing through the transparent area and having a uniform energy profile and an edge portion passing through the semitransparent area and having an inclined energy profile.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 22, 2022
    Inventors: Hakseung Han, Sanguk Park, Jongju Park, Raewon Yi
  • Publication number: 20220323734
    Abstract: Provided is a needle assembly including: a plurality of needles; a main body having a plurality of holes through which the plurality of needles pass in a first direction; and a fixing member coupled to the main body and having a plurality of fixed inclined surfaces supporting the plurality of needles.
    Type: Application
    Filed: May 22, 2020
    Publication date: October 13, 2022
    Inventors: Jongju NA, Heeyoung LEE, Dongkeun SHIN
  • Publication number: 20220283512
    Abstract: A correcting apparatus of an extreme ultraviolet (EUV) photomask includes: a support portion configured to support an EUV photomask having a main area in which a plurality of pattern elements are arranged, a chemical supply unit configured to supply a chemical to the main area, a light source unit configured to generate a laser beam, and a control unit configured to irradiate the laser beam to the chemical supplied to the main area of the EUV photomask and to, based a laser dosage map for correcting critical dimensions (CDs) of the plurality of pattern elements in the main area, adjust a dosage of the laser beam based on the laser dosage map such that among the plurality of pattern elements, pattern elements having different critical dimensions are etched at different etching rates.
    Type: Application
    Filed: October 22, 2021
    Publication date: September 8, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sanguk PARK, Yongwoo KIM, Jongju PARK, Youngchang SEO, Jongkeun OH
  • Patent number: 11406444
    Abstract: Embodiments of medical treatment including skin treatment using electrical energy, especially with the primary purpose for skin treatment for aesthetics are described generally herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: August 9, 2022
    Inventor: Jongju Na
  • Publication number: 20220183747
    Abstract: Embodiments of medical treatment including skin treatment using electrical energy, especially with the primary purpose for skin treatment for aesthetics are described generally herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: March 3, 2022
    Publication date: June 16, 2022
    Inventor: Jongju Na
  • Publication number: 20220113619
    Abstract: A method is provided. The method includes preparing a mask blank, the mask blank including a substrate, a reflective layer disposed on the substrate for reflecting extreme ultraviolet light, and a light absorbing layer disposed on the reflective layer; providing a photomask by forming a plurality of pattern elements having a target critical dimension from the light absorbing layer, wherein the plurality of pattern elements include a correction target pattern element to be corrected, and the correction target pattern element has a critical dimension different from the target critical dimension; identifying a correction target area of the photomask in which the correction target pattern element is disposed; applying an etchant to the photomask; and irradiating a laser beam to the correction target area while the etchant is provided on the photomask.
    Type: Application
    Filed: July 9, 2021
    Publication date: April 14, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongkeun OH, Sanguk PARK, Gyeongcheon JO, Jongju PARK
  • Publication number: 20220100425
    Abstract: Disclosed is a storage device, which includes a nonvolatile memory device, and a controller that controls the nonvolatile memory device. In response to a first command, a barrier command, and a second command being received from an external host device, the controller supports an order guarantee between the first command and the second command. Each of the first command and the second command is selected from two or more different commands. In response to a request from the external host device, the controller circuitry is configured to provide the external host device with a device descriptor associated with the ordering.
    Type: Application
    Filed: April 28, 2021
    Publication date: March 31, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jimin RYU, Jongju KIM, Jeong-Woo PARK, Byung-Ki LEE
  • Publication number: 20210293701
    Abstract: An apparatus and a method for correctly measuring a phase of an extreme ultraviolet (EUV) mask and a method of fabricating an EUV mask including the method are described. The apparatus for measuring the phase of the EUV mask includes an EUV light source configured to generate and output EUV light, at least one mirror configured to reflect the EUV light as reflected EUV light incident on an EUV mask to be measured, a mask stage on which the EUV mask is arranged, a detector configured to receive the EUV light reflected from the EUV mask, to obtain a two-dimensional (2D) image, and to measure reflectivity and diffraction efficiency of the EUV mask, and a processor configured to determine a phase of the EUV mask by using the reflectivity and diffraction efficiency of the EUV mask.
    Type: Application
    Filed: September 29, 2020
    Publication date: September 23, 2021
    Inventors: Jongju Park, Raewon Yi, Hakseung Han, Seongsue Kim
  • Publication number: 20210223680
    Abstract: A laser annealing method performed on a reflective photomask may include preparing a reflective photomask including a pattern area and a border area surrounding the pattern area and irradiating a laser beam onto the border area of the reflective photomask. The irradiating of the laser beam may include split-irradiating a plurality of laser beam spots onto the border area. Each of the plurality of laser beam spots may be shaped using a beam shaper. The beam shaper may include a blind area, a transparent area at a center of the blind area, and a semitransparent area between the blind area and the transparent area. Each of the plurality of laser beam spots may include a center portion passing through the transparent area and having a uniform energy profile and an edge portion passing through the semitransparent area and having an inclined energy profile.
    Type: Application
    Filed: June 25, 2020
    Publication date: July 22, 2021
    Inventors: Hakseung Han, Sanguk Park, Jongju Park, Raewon Yi
  • Publication number: 20210128404
    Abstract: Embodiments of dermatological cell treatment are described generally herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: December 22, 2020
    Publication date: May 6, 2021
    Inventor: Jongju Na
  • Publication number: 20210077350
    Abstract: An apparatus for treating dermatological tissue, including at least two pins configured to be inserted in dermatological tissue to deliver electromagnetic energy to target dermatological tissue, and an electrical signal generator electrically coupled to the at least two pins, and creating a pulsed electrical signal across the at least two pins.
    Type: Application
    Filed: November 27, 2020
    Publication date: March 18, 2021
    Inventors: Jongju Na, Merle Richman
  • Publication number: 20210030464
    Abstract: A submucosa treating apparatus according to an exemplary embodiment of the present invention includes: a probe that is capable of approaching mucosa of a treatment field; an electrode that is provided in the probe, and applies an electrical signal to blood vessels of submucosa; and a guide where the probe is movably accommodated, and a guide where the probe is movably accommodated, and guiding a position of the electrode with respect to the mucosa.
    Type: Application
    Filed: December 20, 2018
    Publication date: February 4, 2021
    Inventor: Jongju NA
  • Publication number: 20210033959
    Abstract: Disclosed are photomask manufacturing methods and semiconductor device fabrication methods. The photomask manufacturing method includes forming a reflective layer on a mask substrate having an image region and an edge region surrounding the image region, forming an absorption pattern on the reflective layer, forming a black border by irradiating a first laser beam to the reflective layer and the absorption pattern on the edge region, using a photomask having the black border to provide a test substrate with an extreme ultraviolet (EUV) beam to form a test pattern, obtaining a critical dimension correction map of the test pattern, and using the critical dimension correction map to irradiate a second laser beam to the reflective layer on a portion of the image region to form an annealed region that is thicker than the black border.
    Type: Application
    Filed: May 14, 2020
    Publication date: February 4, 2021
    Inventors: Hakseung Han, Sanguk Park, Jongju Park, Raewon Yi
  • Publication number: 20210015546
    Abstract: Embodiments of medical treatment including skin treatment using electrical energy, especially with the primary purpose for skin treatment for aesthetics are described generally herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventor: Jongju Na