Patents by Inventor Jang Won Seo

Jang Won Seo 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: 20220379427
    Abstract: The present disclosure relates to a polishing system in which accuracy and easiness of attachment and detachment of a polishing pad to a surface plate are maximized, the polishing system including: a surface plate having a polishing pad mounted on an upper portion; and the polishing pad mounted on the surface plate, in which the polishing pad includes: a polishing surface and a surface plate attachment surface that is a rear surface of the polishing surface, the surface plate attachment surface includes: at least one engraved portion, the surface plate includes at least one embossed portion, and the embossed portion and the engraved portion have a complementary coupling structure, and a method of manufacturing a semiconductor device to which the polishing system is applied.
    Type: Application
    Filed: May 25, 2022
    Publication date: December 1, 2022
    Inventors: Jae In AHN, Kyung Hwan Kim, Seong Hwan Ma, Jang Won Seo
  • Publication number: 20220371155
    Abstract: The present disclosure relates to a polishing pad, a method for manufacturing the polishing pad, and a method for manufacturing a semiconductor device using the polishing pad, and the present disclosure can prevent an error in detecting the end point due to the window in the polishing pad by minimizing the effect on transmittance according to the surface roughness of the window in the polishing pad in the polishing process, and allows the fluidity and loading rate of the polishing slurry in the polishing process to be implemented at similar levels by maintaining the surface roughness difference between the polishing layer and the window in the polishing pad within the predetermined range, thereby enabling the problem of deterioration of polishing performance due to the surface difference between the polishing layer and the window to be prevented. Further, a method for manufacturing a semiconductor device to which a polishing pad is applied may be provided.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 24, 2022
    Inventors: Sung Hoon YUN, Jae In AHN, Eun Sun Joeng, Jang Won Seo
  • Publication number: 20220355436
    Abstract: A polishing pad includes a polishing layer, wherein the polishing layer includes zinc (Zn), and a concentration of the zinc (Zn) is 0.5 ppm to 40 ppm parts by weight based on the total weight of the polishing layer. In an exemplary embodiment, a polishing pad is provided wherein a concentration of the zinc (Zn) is 0.5 ppm to 40 ppm parts by weight based on the total weight of the polishing layer, a concentration of the iron (Fe) is 1 ppm to 50 ppm parts by weight based on the total weight of the polishing layer, and a concentration of the aluminum (Al) is 2 ppm to 50 ppm parts by weight based on the total weight of the polishing layer.
    Type: Application
    Filed: May 4, 2022
    Publication date: November 10, 2022
    Inventors: Eun Sun JOENG, Jong Wook YUN, Jang Won SEO, Su Young MOON
  • Publication number: 20220312850
    Abstract: An aerosol generating system may include a plurality of susceptors having different resonance frequencies and configured to heat different portions of a cigarette accommodated in an aerosol generating device, a coil configured to heat the plurality of susceptors, a plurality of capacitors connected to the coil, and a processor configured to determine a combination of capacitors through which current applied to the coil is to pass from among the plurality of capacitors, and heat a susceptor corresponding to a resonance frequency according to the combination by applying current to the coil according to the combination.
    Type: Application
    Filed: July 16, 2021
    Publication date: October 6, 2022
    Applicant: KT&G CORPORATION
    Inventors: Jang Won SEO, Gyoung Min GO, Hyung Jin BAE, Chul Ho JANG, Min Seok JEONG, Jong Seong JEONG, Jin Chul JUNG
  • Publication number: 20220288743
    Abstract: The present invention relates to a polishing pad, a method for producing the same, and a method of fabricating a semiconductor device using the same. According to the present invention, it is possible to prevent defects from occurring due to an inorganic component contained in a polishing layer during a polishing process, by limiting the content range of the inorganic component contained in the polishing layer. In addition, an unexpanded solid foaming agent is contained in a polishing composition for producing a polishing layer and is expanded during a curing process to form a plurality of uniform pores in the polishing layer, and the content range of the inorganic component contained in the polishing layer, thereby preventing defects from occurring during the polishing process.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 15, 2022
    Inventors: Jong Wook YUN, Eun Sun JOENG, Sung Hoon YUN, Hye Young HEO, Jang Won SEO
  • Patent number: 11400559
    Abstract: The polishing pad according to an embodiment adjusts the content of elements present in the polishing layer, thereby controlling the bonding strength between the polishing pad and the polishing particles and enhancing the bonding strength between the polishing particles and the semiconductor substrate (or wafer), resulting in an increase in the polishing rate. It is possible to enhance not only the mechanical properties of the polishing pad such as hardness, tensile strength, elongation, and modulus, but also the polishing rate for both a tungsten layer or an oxide layer. Accordingly, it is possible to efficiently fabricate a semiconductor device of excellent quality using the polishing pad.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 2, 2022
    Assignee: SKC solmics CO., LTD.
    Inventors: Eun Sun Joeng, Jong Wook Yun, Sunghoon Yun, Jang Won Seo
  • Patent number: 11392313
    Abstract: A memory controller according to an aspect of the present invention includes a BIST (built-in self-tester) configured to test a memory, a scheduler configured to change an execution order of memory commands to be transmitted to the memory, a main controller configured to control the memory, and a switch configured to connect one of an output of the scheduler and an output of the BIST to an input of the main controller in response to a control signal output from the BIST.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: July 19, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Jang Won Seo
  • Patent number: 11373813
    Abstract: Provided is a perovskite solar cell, and more particularly, a perovskite solar cell including an organometal halide layer having a perovskite structure; and a crystalline material layer stacked while forming an interface with the organometal halide layer, wherein a crystalline material of the crystalline material layer is a crystalline halide having a crystal structure different from the perovskite structure, and the crystalline halide has a band gap energy higher than a band gap energy of an organometal halide of the organometal halide layer, and has a valence band maximum energy level lower than a valence band maximum energy level of the organometal halide.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 28, 2022
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jang Won Seo, Nam Joong Jeon, Tae Youl Yang, Jun Hong Noh, Eui Hyuk Jung
  • Publication number: 20220201149
    Abstract: An image reading apparatus includes an image sensor, a document feeder, and a processor. The document feeder includes a first driving device, a second driving device, a third driving device, a first sensor, and a second sensor. The first driving device includes a pick-up member to move documents from a tray to a document conveying path using a driving force through a first clutch. The second driving device is to move the tray with the documents to a side of the pick-up member using a driving force through a second clutch. The third driving device to move the documents along the document conveying path onto the image sensor using the driving force of the motor The first and second sensors detect the documents on the document conveying path. The processor controls an operation of the first clutch based on the signals of the first and second sensors.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 23, 2022
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jung Hoon Lee, Takuya Ito, Jang Won Seo, Jae Hoon Lee, Whan Woo Lee, Soo Hyun Kim, Seung Rae Kim, Seung Beom Yang, Ji Young Lee, Sung Hyun Yoon, Koo Won Park
  • Publication number: 20220176514
    Abstract: A polishing pad sheet which provides optimized interfacial properties for the laminated structure of a polishing pad based on appropriate elasticity and high durability, and in which the polishing pad having the polishing pad sheet applied thereto not only has its intrinsic function such as the polishing rate or the like, but also is capable of realizing the function without damage even during the polishing process in a wet environment for a long time, and a polishing pad to which the polishing pad sheet is applied. The polishing pad sheet includes: a first surface which is a polishing layer attachment surface; and a second surface which is a rear surface of the first surface, wherein the first surface has a value of the following Equation 1 of 4.20 to 5.50: 4.20?(|Sv|)/Sz×P (%)?5.50.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Inventors: Sung Hoon YUN, Kyung Hwan Kim, Jae In Ahn, Jang Won Seo
  • Publication number: 20220152776
    Abstract: Embodiments relate to a polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors, a process for preparing the same, and a process for preparing a semiconductor device using the same. In the polishing pad according to the embodiment, the size (or diameter) and distribution of a plurality of pores are adjusted, whereby the polishing performance such as polishing rate and within-wafer non-uniformity can be further enhanced.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Inventors: Sunghoon YUN, Hye Young HEO, Jang Won SEO
  • Publication number: 20220143778
    Abstract: The present disclosure provides a polishing pad, which may maintain polishing performances required for a polishing process, such as a removal rate and a polishing profile, minimize defects that may occur on a wafer during the polishing process, and polish layers of different materials so as to have the same level of flatness even when the layers are polished at the same time, and a method for producing the polishing pad. In addition, according to the present disclosure, it is possible to determine a polishing pad, which shows an optimal removal rate selectivity along with excellent performance in a CMP process, through the physical property values of the polishing pad without a direct polishing test.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 12, 2022
    Inventors: Hye Young HEO, Jang Won Seo, Jae In Ahn, Jong Wook Yun
  • Patent number: 11325222
    Abstract: An embodiment relates to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for preparing the same. In the porous polyurethane polishing pad, the polishing performance (or polishing rate) thereof can be controlled by adjusting the size and distribution of pores in the polishing pad.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 10, 2022
    Assignee: SKC solmics Co., Ltd.
    Inventors: Hye Young Heo, Jang Won Seo, Hyuk Hee Han
  • Patent number: 11325159
    Abstract: A classifying and purifying apparatus of a solid blowing agent includes a classifier which classifies a supplied solid blowing agent into first microspheres and second microspheres, a storage connected to the classifier, in which the classified first microspheres flow in to be stored and emitted, and a filter arranged on the moving route of the solid blowing agent or the first microspheres which separates metallic substance from the object of filtering comprising the solid blowing agent or the first microspheres.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: May 10, 2022
    Assignee: SKC SOLMICS CO., LTD.
    Inventors: Sunghoon Yun, Jung Nam Lee, Tae Kyoung Kwon, Jang Won Seo
  • Publication number: 20220132925
    Abstract: A vaporizer and an aerosol-generating device including the vaporizer are provided. The vaporizer includes a liquid storage tank configured to store a liquid aerosol-generating material, and a wick-heater assembly including a porous wick that absorbs the stored aerosol-generating material through a porous body and a heater assembly that generates an aerosol by heating the absorbed aerosol-generating material.
    Type: Application
    Filed: December 8, 2020
    Publication date: May 5, 2022
    Applicant: KT&G CORPORATION
    Inventors: Jong Seong JEONG, Chul Ho JANG, Gyoung Min GO, Hyung Jin BAE, Jang Won SEO, Min Seok JEONG, Jin Chul JUNG
  • Patent number: 11307793
    Abstract: A memory controller according to an aspect of the present invention includes a buffer configured to store an operation command table including operation commands entered by a user, a BIST (built-in self-tester) controller configured to generate a pointer pointing to an operation command, a command and address generator configured to decode the operation command corresponding to the pointer among the operation commands to generate first memory commands, a command and address queue comprising queues for storing the first memory commands, and a command requester configured to output a test command including first operation command information for the generation of a memory command output from a first queue included in the queues among the memory command, location information of the first queue, and the operation commands.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: April 19, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Jang Won Seo
  • Patent number: 11310389
    Abstract: An image reading apparatus includes an image sensor, a document feeder, and a processor. The document feeder includes a first driving device, a second driving device, a third driving device, a first sensor, and a second sensor. The first driving device includes a pick-up member to move documents from a tray to a document conveying path using a driving force through a first clutch. The second driving device is to move the tray with the documents to a side of the pick-up member using a driving force through a second clutch. The third driving device to move the documents along the document conveying path onto the image sensor using the driving force of the motor The first and second sensors detect the documents on the document conveying path. The processor controls an operation of the first clutch based on the signals of the first and second sensors.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 19, 2022
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jung Hoon Lee, Takuya Ito, Jang Won Seo, Jae Hoon Lee, Whan Woo Lee, Soo Hyun Kim, Seung Rae Kim, Seung Beom Yang, Ji Young Lee, Sung Hyun Yoon, Koo Won Park
  • Publication number: 20220110368
    Abstract: Provided herein is an aerosol generation device with a reduced preheating time. The aerosol generation device according to some embodiments of the present disclosure includes a case including an opening formed in one surface, and an article insertion portion into which an aerosol-generating article including an aerosol-generating substrate is inserted, an opening/closing type cover which is disposed on the one surface of the case to open and close the opening, and a heater configured to heat the inserted aerosol-generating article. Here, the opening/closing type cover is configured to, when closing the opening, mechanically press an aerosol-generating substrate portion of the inserted aerosol-generating article so that the entire aerosol-generating substrate portion is rapidly heated, and in this way, a preheating time of the device may be reduced.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 14, 2022
    Applicant: KT&G CORPORATION
    Inventors: Chul Ho JANG, Gyoung Min GO, Hyung Jin BAE, Jang Won SEO, Min Seok JEONG, Jong Seong JEONG, Jin Chul JUNG
  • Patent number: D958164
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 19, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jee Kwak, Hee-Jin Ko, Jang-Won Seo, Jae Julien, Yoo-Jin Choi
  • Patent number: D958829
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: July 26, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ga-Min Park, Jang-Won Seo