Patents by Inventor Tae-heung Ahn

Tae-heung Ahn 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: 11029256
    Abstract: Provided is an apparatus for measuring a wafer. The apparatus may include a chuck disposed on a stage and a plate connected with the stage, a horizontal frame configured to support a wafer, and a vertical frame connecting the plate and the horizontal frame. The apparatus may further include first to third adsorption portions connected with the horizontal frame and configured to adsorb the wafer, a support bar penetrating through the chuck and extending in a first direction and a beam irradiator connected to the support bar and disposed between the plate and the horizontal frame. The beam irradiator may be configured to irradiate a beam on the wafer. The apparatus may further include a detector on an opposite side of the horizontal frame from the beam irradiator and configured to receive the beam after it has penetrated through the wafer.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-Heung Ahn, Racine Nassau, Su Hwan Park, Ki Wan Seo, Nam Il Koo, In Keun Baek, Jong Min Yoon, Ik Seon Jeon
  • Publication number: 20210025832
    Abstract: Provided is an apparatus for measuring a wafer. The apparatus may include a chuck disposed on a stage and a plate connected with the stage, a horizontal frame configured to support a wafer, and a vertical frame connecting the plate and the horizontal frame. The apparatus may further include first to third adsorption portions connected with the horizontal frame and configured to adsorb the wafer, a support bar penetrating through the chuck and extending in a first direction and a beam irradiator connected to the support bar and disposed between the plate and the horizontal frame. The beam irradiator may be configured to irradiate a beam on the wafer. The apparatus may further include a detector on an opposite side of the horizontal frame from the beam irradiator and configured to receive the beam after it has penetrated through the wafer.
    Type: Application
    Filed: April 13, 2020
    Publication date: January 28, 2021
    Inventors: Tae-Heung AHN, Racine NASSAU, Su Hwan PARK, Ki Wan SEO, Nam Il KOO, In Keun BAEK, Jong Min YOON, Ik Seon JEON
  • Patent number: 10733719
    Abstract: A wafer inspection apparatus includes a linear stage configured to support a chuck on which a wafer is disposed and to move the chuck along a guide rail, wherein the guide rail extends in a first direction, an image sensor module overlapping the linear stage, and a rotary stage supported by the linear stage. The rotary stage is configured to rotate the chuck in a state where a center of the wafer is aligned with the image sensor module. The image sensor module includes a light source directing light onto the wafer, and an image sensor extending in a second direction crossing the first direction.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Heung Ahn, Soo Ryonng Kim, Tae Joong Kim, Jun Bum Park, Byeong Hwan Jeon, Jae Chol Joo
  • Patent number: 10473579
    Abstract: An inspection apparatus includes a light source. A first measurement unit is configured to receive light from the light source and direct it to a first measurement object. A second measurement unit is configured to receive the light from the light source and direct it to a second measurement object. An inspection unit is configured to receive a first optical signal provided from the first measurement unit and inspect the first measurement object using the first optical signal, and to receive a second optical signal provided from the second measurement unit and inspect the second measurement object using the second optical signal. A measurement position selection unit is configured to alternately enable the inspection of the two measurement units by adjusting an angle of a reflection mirror.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: November 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-Heung Ahn, Young Duk Kim, Sang Gil Park, Jun Bum Park, Yoichiro Iwa, Byeong Hwan Jeon
  • Publication number: 20190094072
    Abstract: Provided are an atomic emission spectrometer (AES), which may be downscaled with high detection intensity, a semiconductor manufacturing facility including the AES, and a method of manufacturing a semiconductor device using the AES. The AES includes: at least one laser generator configured to generate laser beams; a chamber including an elliptical or spherical mirror disposed inside the chamber and configured to reflect the laser beams transmitted into the chamber so that the laser beams are condensed and irradiated on an analyte contained in the chamber to generate plasma and emit plasma light; a supplier connected to the chamber to supply the analyte into the chamber; and a spectrometer configured to receive and analyze the plasma light, and obtain data regarding the plasma light to detect elements in the analyte.
    Type: Application
    Filed: January 11, 2018
    Publication date: March 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-gil PARK, Byeong-hwan JEON, Tae-heung AHN
  • Publication number: 20190079003
    Abstract: An inspection apparatus includes a light source. A first measurement unit is configured to receive light from the light source and direct it to a first measurement object. A second measurement unit is configured to receive the light from the light source and direct it to a second measurement object. An inspection unit is configured to receive a first optical signal provided from the first measurement unit and inspect the first measurement object using the first optical signal, and to receive a second optical signal provided from the second measurement unit and inspect the second measurement object using the second optical signal. A measurement position selection unit is configured to alternately enable the inspection of the two measurement units by adjusting an angle of a reflection mirror.
    Type: Application
    Filed: May 16, 2018
    Publication date: March 14, 2019
    Inventors: Tae-Heung Ahn, Young Duk Kim, Sang Gil Park, Jun Bum Park, Yoichiro Iwa, Byeong Hwan Jeon
  • Patent number: 10001444
    Abstract: A surface inspecting method includes: irradiating an incident light beam of a first polarized state on a target object, the incident light beam comprising parallel light and having a cross-sectional area: measuring a second polarized state of a reflected light beam reflected from the target object; and performing inspection on an entire area of the target object on which the incident light beam is irradiated, based on a variation between the first polarized state and the second polarized state.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 19, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang-woong Ko, Sung-yoon Ryu, Young-hoon Sohn, Gil-woo Song, Tae-heung Ahn, Hyoung-jo Jeon, Sang-kyeong Han, Masahiro Horie, Woo-seok Ko, Yu-sin Yang, Sang-kil Lee, Byeong-hwan Jeon
  • Publication number: 20180164227
    Abstract: Disclosed is a substrate inspection system. The substrate inspection system comprises a substrate inspection apparatus that inspects a substrate by irradiating light thereto. The substrate inspection apparatus comprises a light source to irradiate light onto the substrate, a detector to receive light from the substrate, and a controller to control an inspection mode of the substrate inspection apparatus by controlling the light source and the detector. The inspection mode comprises a first inspection mode to inspect whether a particle is present on the substrate and a second inspection mode to inspect a thickness of the substrate.
    Type: Application
    Filed: November 1, 2017
    Publication date: June 14, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Taejoong KIM, Kwang Soo KIM, lwa YOICHIRO, Byeonghwan JEON, Yougduk KIM, Wansung PARK, Tae-Heung AHN, Jaechol JOO
  • Publication number: 20180061041
    Abstract: A wafer inspection apparatus includes a linear stage configured to support a chuck on which a wafer is disposed and to move the chuck along a guide rail, wherein the guide rail extends in a first direction, an image sensor module overlapping the linear stage, and a rotary stage supported by the linear stage. The rotary stage is configured to rotate the chuck in a state where a center of the wafer is aligned with the image sensor module. The image sensor module includes a light source directing light onto the wafer, and an image sensor extending in a second direction crossing the first direction.
    Type: Application
    Filed: March 23, 2017
    Publication date: March 1, 2018
    Inventors: Tae Heung AHN, Soo Ryonng Kim, Tae Joong kim, Jun Bum Park, Byeong Hwan Jeon, Jae Chol Joo
  • Publication number: 20160153915
    Abstract: A surface inspecting method includes: irradiating an incident light beam of a first polarized state on a target object, the incident light beam comprising parallel light and having a cross-sectional area: measuring a second polarized state of a reflected light beam reflected from the target object; and performing inspection on an entire area of the target object on which the incident light beam is irradiated, based on a variation between the first polarized state and the second polarized state.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Inventors: Kang-woong Ko, Sung-yoon Ryu, Young-hoon Sohn, Gil-woo Song, Tae-heung Ahn, Hyoung-jo Jeon, Sang-kyeong Han, Masahiro Horie, Woo-seok Ko, Yu-sin Yang, Sang-kil Lee, Byeong-hwan Jeon