Patents by Inventor Chang-seok Kang

Chang-seok Kang 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: 12142475
    Abstract: Methods of manufacturing memory devices are provided. The methods improve the quality of a selectively deposited silicon-containing dielectric layer. The method comprises selectively depositing a silicon-containing dielectric layer in a recessed region of a film stack. The selectively deposited silicon-containing dielectric layer is then exposed to a high-density plasma and annealed at a temperature greater than 800 ° C. to provide a silicon-containing dielectric film having a wet etch rate of less than 4 ?/min.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: November 12, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Ning Li, Shuaidi Zhang, Mihaela A. Balseanu, Qi Gao, Rajesh Prasad, Tomohiko Kitajima, Chang Seok Kang, Deven Matthew Raj Mittal, Kyu-Ha Shim
  • Publication number: 20240367507
    Abstract: A vehicle storage tank mounting device configured to mount an LPG storage tank at the rear position of a vehicle body frame using a storage tank mounting frame so as to absorb or block collision impact, thereby avoiding interference with the vehicle body frame and a propeller shaft. The vehicle storage tank mounting device is further configured to reliably absorb or block collision impact transmitted to the storage tank in the event of a side collision and a rear collision, and to satisfy collision safety performance and vehicle laws.
    Type: Application
    Filed: November 17, 2023
    Publication date: November 7, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang Han Kim, Seung Yup Oh, Man Seok Oh, Seung Hoon Choi, Gil Eon Kang
  • Publication number: 20240363345
    Abstract: A method for manufacturing a memory device includes depositing a seed layer in a memory hole extending through a memory stack. The seed layer includes particles, such as silicon particles. The seed layer is etched to produce etched particles. The etched particles act as nuclei for the growth of a crystalline channel material in the memory hole.
    Type: Application
    Filed: February 14, 2024
    Publication date: October 31, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Chang Seok KANG, Raman GAIRE, Hsueh Chung CHEN, In Soo JUNG, Houssam LAZKANI, Balasubramanian PRANATHARTHIHARAN
  • Publication number: 20240365551
    Abstract: Exemplary semiconductor structures may include a substrate. The structures may include a first layer of silicon-and-oxygen-containing material overlying the substrate. The structures may include a second layer of silicon-and-oxygen-containing material. The structures may include a first layer of metal-and-oxygen-containing material between the first layer of silicon-and-oxygen-containing material and the second layer of silicon-and-oxygen-containing material. The first layer of metal-and-oxygen-containing material may include a first metal. The structures may include a second layer of metal-and-oxygen-containing material disposed within the first layer of metal-and-oxygen-containing material. The second layer of metal-and-oxygen-containing material may include a second metal. The structures may include a gate disposed within the second layer of metal-and-oxygen-containing material.
    Type: Application
    Filed: April 9, 2024
    Publication date: October 31, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Chang Seok Kang, Steven C. H. Hung, Hsueh Chung Chen, Naomi Yoshida, Sung-Kwan Kang, Balasubramanian Pranatharthiharan
  • Patent number: 12122777
    Abstract: The present invention relates to a compound for an organic optoelectronic device, represented by Chemical Formula 1; a composition for an organic optoelectronic device, including same; an organic optoelectronic device; and a display device. The description of Chemical Formula 1 is the same as that defined in the specification.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 22, 2024
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Dong Min Kang, Chang Ju Shin, Jun Seok Kim, Hyunjung Kim, Jongwoo Won, Byoungkwan Lee, Sangshin Lee, Sung-Hyun Jung, Ho Kuk Jung, Pyeongseok Cho
  • Publication number: 20240313682
    Abstract: A motor driving apparatus includes a motor an inverter driving the motor based on a switching signal, and a controller. The controller determines a current position estimated value of the motor by applying a zero-voltage vector pulse to the switching signal when entering the driving control of the motor, determines whether the motor is in a stop state according to an amount of change in the current position estimated value, and performs a pulse width modulation control by adjusting a duty ratio of the switching signal when the motor is determined to be in the stop state.
    Type: Application
    Filed: September 18, 2023
    Publication date: September 19, 2024
    Inventors: Sung Do Kim, Joo Yeon Kim, Min Su Kang, Chang Seok You
  • Publication number: 20240315025
    Abstract: Described is a memory string including at least one select gate for drain (SGD) transistor and at least one memory transistor in a vertical hole extending through a memory stack on a substrate. The memory stack comprises alternating word lines and dielectric material. There is at least one select-gate-for-drain (SGD) transistor in a first vertical hole extending through the memory stack, the select-gate-for-drain (SGD) transistor comprising a first gate material. At least one memory transistor is in a second vertical hole extending through the memory stack, the at least one memory transistor comprising a second gate material different from the first gate material.
    Type: Application
    Filed: March 8, 2024
    Publication date: September 19, 2024
    Inventor: Chang Seok Kang
  • Publication number: 20240312713
    Abstract: A multilayer electronic component includes a body including a dielectric layer including Ba and Ti and an internal electrode alternately disposed with the dielectric layer, and including first and second surfaces opposing each other in a first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction; a side margin portion disposed on the fifth and sixth surfaces; and external electrodes disposed on the third and fourth surfaces, wherein the side margin portion includes Sn and a transition metal, and wherein, in the side margin portion, a mole ratio of transition metal to Sn is 10 or more.
    Type: Application
    Filed: February 22, 2024
    Publication date: September 19, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dae Hee LEE, Seung Min KANG, Hong Seok KIM, Chang Hak CHOI
  • Publication number: 20240315004
    Abstract: A 4F2 two-dimensional dynamic random access memory array may include vertical pillar transistors that are arranged in a honeycomb pattern to maximize the available capacitor footprint on top of the memory array. The bit lines may partially intersect with bottom source/drain regions of two adjacent columns of the vertical transistors, where the columns may be offset based on the honeycomb pattern. The word lines may have a varying width that increases as the word lines enclose the gate regions of the transistors and that decreases between adjacent transistors. The transistor stages may each be formed individually and incrementally, with the bottom source/drain region and the bit lines being completed first, followed by the gate region and the word lines, followed by the top source/drain regions and the capacitors.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 19, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Chang Seok Kang, Sung-Kwan Kang
  • Patent number: 12095399
    Abstract: A sensorless induction motor system and a control method thereof includes a motor including a stator including windings forming a plurality of phases and a rotor including a permanent magnet, and a controller configured to control operation of the motor by controlling a voltage applied to each phase of the stator, to set a stop waiting time predicted to be necessary for the rotor to stop when the motor is controlled to stop, to apply a pulse voltage to each phase of the stator a plurality of times after the stop waiting time, and to conclude that the rotor has stopped when a minimum deviation value of an induced current is equal to or greater than a reference value.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: September 17, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Min Su Kang, Joo Yeon Kim, Sung Do Kim, Chang Seok You
  • Publication number: 20240206172
    Abstract: Described is selective deposition of a silicon nitride (SiN) trap layer to form a memory device. A sacrificial layer is used for selective deposition in order to permit selective trap deposition. The trap layer is formed by deposition of a mold including a sacrificial layer, memory hole (MH) patterning, sacrificial layer recess from MH side, forming a deposition-enabling layer (DEL) on a side of the recess, and selective deposition of trap layer. After removing the sacrificial layer from a slit pattern opening, the deposition-enabling layer (DEL) is converted into an oxide to be used as blocking oxide.
    Type: Application
    Filed: January 29, 2024
    Publication date: June 20, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Chang Seok Kang, Tomohiko Kitajima, Mihaela A. Balseanu
  • Publication number: 20240098971
    Abstract: A memory cell array includes a plurality of memory levels stacked in a first direction, each of the plurality of memory levels including an active region, a cell transistor having a single gate above the active region in the first direction, and a cell capacitor having a bottom electrode layer that is electrically connected to the active region.
    Type: Application
    Filed: August 22, 2023
    Publication date: March 21, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Chang Seok KANG, Sung-Kwan KANG
  • Publication number: 20240090213
    Abstract: A method of forming a semiconductor memory device includes simultaneously filling a top portion of a first high aspect ratio (HAR) structure and a top portion a second HAR structure with a silicon-containing sacrificial layer by a cycle of a deposition process and an etch process, wherein the first HAR structure has a critical dimension (CD) of between 150 nm and 250 nm, and the second HAR structure has a CD of between 250 nm and 400 nm.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 14, 2024
    Inventors: Jialiang WANG, Soonil LEE, Eswaranand VENKATASUBRAMANIAN, Chang Seok KANG, Sanjay G. KAMATH, Abhijit B. MALLICK, Srinivas GUGGILLA, Amy CHILD, Sung-Kwan KANG, Balasubramanian PRANATHARTHIHARAN
  • Patent number: 11930637
    Abstract: Described is selective deposition of a silicon nitride (SiN) trap layer to form a memory device. A sacrificial layer is used for selective deposition in order to permit selective trap deposition. The trap layer is formed by deposition of a mold including a sacrificial layer, memory hole (MH) patterning, sacrificial layer recess from MH side, forming a deposition-enabling layer (DEL) on a side of the recess, and selective deposition of trap layer. After removing the sacrificial layer from a slit pattern opening, the deposition-enabling layer (DEL) is converted into an oxide to be used as blocking oxide.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: March 12, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Chang Seok Kang, Tomohiko Kitajima, Mihaela A. Balseanu
  • Patent number: 11910614
    Abstract: A three-dimensional semiconductor device and a method of forming the same are provided. The three-dimensional semiconductor device comprises a substrate including first and second areas; first and second main separation patterns, disposed on the substrate and intersecting the first and second areas; gate electrodes disposed between the first and second main separation patterns and forming a stacked gate group, the gate electrodes sequentially stacked on the first area and extending in a direction from the first area to the second area; and at least one secondary separation pattern disposed on the second area, disposed between the first and second main separation patterns, and penetrating through the gate electrodes disposed on the second area. The gate electrodes include pad portions on the second area, and the pad portions are thicker than the gate electrodes disposed on the first area and in contact with the at least one secondary separation pattern.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: February 20, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Sup Lee, Phil Ouk Nam, Sung Yun Lee, Chang Seok Kang
  • Publication number: 20230420232
    Abstract: Methods of manufacturing memory devices are provided. The method comprises pre-cleaning a top surface of a film stack, the film stack comprising alternating layers of a first material layer and a second material layer and having one or more of a memory hole and a slit pattern opening extending through the film stack; exposing the top surface of the film stack to a growth inhibitor; selectively depositing a silicon-containing dielectric layer in a region of the film stack; and densifying the silicon-containing dielectric layer. The processing method is performed in a processing tool without breaking vacuum.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Tomohiko Kitajima, Ning Li, Chang Seok Kang, Naomi Yoshida
  • Publication number: 20230371246
    Abstract: Described are memory devices having an array region and an extension region adjacent the array region. The array region includes at least two unit cells stacked vertically. The extension region includes a memory stack and a plurality of word line contacts. The memory stack comprises alternating layers of at least one conductive layer, a semiconductor layer, and an insulating layer. The plurality of word line contacts extend through the memory stack to the at least one conductive layer. Each of the plurality of word line contacts have a height that is different than the height of an adjacent word line contact. Each of the plurality of word line contacts has a metallization layer on the top surface. Methods of forming a memory device are described.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 16, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Chang Seok Kang, Tomohiko Kitajima, Sung-Kwan Kang, Gill Yong Lee
  • Publication number: 20230369031
    Abstract: Methods of manufacturing memory devices are provided. The method comprises pre-cleaning a top surface of a film stack, the film stack comprising alternating layers of a first material layer and a second material layer and having one or more of a memory hole and a slit pattern opening extending through the film stack; exposing the top surface of the film stack to a growth inhibitor; selectively depositing a silicon-containing dielectric layer in a region of the film stack; and densifying the silicon-containing dielectric layer. The processing method is performed in a processing tool without breaking vacuum.
    Type: Application
    Filed: March 28, 2023
    Publication date: November 16, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Tomohiko Kitajima, Ning Li, Chang Seok Kang, Naomi Yoshida
  • Patent number: 11818877
    Abstract: Examples herein relate to three-dimensional (3D) dynamic random access memory (DRAM) and corresponding methods. In an example, a film stack is formed on a substrate. The film stack includes multiple unit stacks, each having, sequentially, a first dielectric layer, a semiconductor layer, and a second dielectric layer. A first opening is formed through the film stack. The second dielectric layer is pulled back from the first opening forming a first lateral recess. A gate structure is formed in the first lateral recess and disposed on a portion of the semiconductor layer. A second opening, laterally disposed from where the first opening was formed, is formed through the film stack. The portion of the semiconductor layer is pulled back from the second opening forming a second lateral recess. A capacitor is formed in a region where the second lateral recess was disposed and contacting the portion of the semiconductor layer.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: November 14, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Chang Seok Kang, Tomohiko Kitajima, Sung-Kwan Kang, Fredrick Fishburn, Gill Yong Lee, Nitin K. Ingle
  • Patent number: 11763856
    Abstract: Memory devices are described. The memory devices include a plurality of bit lines extending through a stack of alternating memory layers and dielectric layers. Each of the memory layers include a first word line, a second word line, a first capacitor, and a second capacitor. Methods of forming stacked memory devices are also described.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: September 19, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Sung-Kwan Kang, Gill Yong Lee, Chang Seok Kang