Patents by Inventor Rae-Won Yi

Rae-Won Yi 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: 9897554
    Abstract: A method of inspecting a surface includes loading an inspection object on a stage of a multibeam inspection device configured to generate a beam array, and scanning a plurality of inspection areas of the inspection object at a same time with the beam array, wherein one of the first inspection areas is smaller than an area formed by a quadrangle connecting respective centers of corresponding four adjacent beams of the beam array, and an adjacent area of the one first inspection area is not scanned with the beam array.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-hoon Na, Dong-gun Lee, Byung-gook Kim, Rae-won Yi
  • Patent number: 9892884
    Abstract: An exposure apparatus comprising, a stage configured to receive a substrate, a mark array disposed on the stage and comprising a first mark and a second mark separated from each other by a first distance, a first beam irradiator configured to irradiate a first beam to the first mark, a second beam irradiator being separated from the first beam by a pitch greater than the first distance and configured to irradiate a second beam to the second mark, a detector disposed over the mark array and configured to receive a third beam reflected by the first mark and a fourth beam reflected by the second mark, and a controller configured to control the position of the stage using an output of the detector.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Rae-Won Yi, Byoung-Sup Ahn, Dong-Gun Lee, Su-Young Lee
  • Publication number: 20170053773
    Abstract: An exposure apparatus comprising, a stage configured to receive a substrate, a mark array disposed on the stage and comprising a first mark and a second mark separated from each other by a first distance, a first beam irradiator configured to irradiate a first beam to the first mark, a second beam irradiator being separated from the first beam by a pitch greater than the first distance and configured to irradiate a second beam to the second mark, a detector disposed over the mark array and configured to receive a third beam reflected by the first mark and a fourth beam reflected by the second mark, and a controller configured to control the position of the stage using an output of the detector.
    Type: Application
    Filed: May 18, 2016
    Publication date: February 23, 2017
    Inventors: Rae-Won YI, Byoung-Sup AHN, Dong-Gun LEE, Su-Young LEE
  • Patent number: 9529960
    Abstract: A method of providing a photolithography pattern can be provided by identifying at least one weak feature from among a plurality of features included in a photolithography pattern based on a feature parameter that is compared to a predetermined identification threshold value for the feature parameter. A first region of the weak feature can be classified as a first dosage region and a second region of the weak feature can be classified as a second dosage region. Related methods and apparatus are also disclosed.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: December 27, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Choi, Heung-suk Oh, Sin-jeung Park, Rae-won Yi
  • Publication number: 20160356727
    Abstract: A method of inspecting a surface includes loading an inspection object on a stage of a multibeam inspection device configured to generate a beam array, and scanning a plurality of inspection areas of the inspection object at a same time with the beam array, wherein one of the first inspection areas is smaller than an area formed by a quadrangle connecting respective centers of corresponding four adjacent beams of the beam array, and an adjacent area of the one first inspection area is not scanned with the beam array.
    Type: Application
    Filed: April 8, 2016
    Publication date: December 8, 2016
    Inventors: Ji-hoon Na, Dong-gun Lee, Byung-gook Kim, Rae-won Yi
  • Publication number: 20150220679
    Abstract: A method of providing a photolithography pattern can be provided by identifying at least one weak feature from among a plurality of features included in a photolithography pattern based on a feature parameter that is compared to a predetermined identification threshold value for the feature parameter, A first region of the weak feature can be classified as a first dosage region and a second region of the weak feature can be classified as a second dosage region. Related methods and apparatus are also disclosed.
    Type: Application
    Filed: April 6, 2015
    Publication date: August 6, 2015
    Inventors: Jin Choi, Heung-suk Oh, Sin-jeung Park, Rae-won Yi
  • Patent number: 9017904
    Abstract: A method of providing a photolithography pattern can be provided by identifying at least one weak feature from among a plurality of features included in a photolithography pattern based on a feature parameter that is compared to a predetermined identification threshold value for the feature parameter. A first region of the weak feature can be classified as a first dosage region and a second region of the weak feature can be classified as a second dosage region. Related methods and apparatus are also disclosed.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: April 28, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Choi, Heung-Suk Oh, Sin-jeung Park, Rae-won Yi
  • Publication number: 20140045334
    Abstract: A method of providing a photolithography pattern can be provided by identifying at least one weak feature from among a plurality of features included in a photolithography pattern based on a feature parameter that is compared to a predetermined identification threshold value for the feature parameter. A first region of the weak feature can be classified as a first dosage region and a second region of the weak feature can be classified as a second dosage region. Related methods and apparatus are also disclosed.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 13, 2014
    Inventors: Jin Choi, Heung-Suk Oh, Sin-jeung Park, Rae-won Yi
  • Patent number: 8465884
    Abstract: A method of depicting a photomask using e-beams includes preparing a photomask having an e-beam resist, depicting the e-beam resist and forming an e-beam resist pattern on the photomask. Depicting the e-beam resist includes irradiating e-beams to an e-beam depiction region without irradiating the e-beams to an e-beam non-depiction region disposed in the e-beam depiction region. The e-beam depiction region and the e-beam non-depiction region are formed using an e-beam resist pattern having the same polarity.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: June 18, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Choi, Sang-Hee Lee, Rae-Won Yi
  • Publication number: 20110165778
    Abstract: A method of depicting a photomask using e-beams includes preparing a photomask having an e-beam resist, depicting the e-beam resist and forming an e-beam resist pattern on the photomask. Depicting the e-beam resist includes irradiating e-beams to an e-beam depiction region without irradiating the e-beams to an e-beam non-depiction region disposed in the e-beam depiction region. The e-beam depiction region and the e-beam non-depiction region are formed using an e-beam resist pattern having the same polarity.
    Type: Application
    Filed: December 21, 2010
    Publication date: July 7, 2011
    Inventors: Jin CHOI, Sang-Hee Lee, Rae-Won Yi