Patents by Inventor Toshiro Nakanishi

Toshiro Nakanishi 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: 11888042
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: January 30, 2024
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Patent number: 11588032
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: February 21, 2023
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Publication number: 20230044895
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Application
    Filed: October 19, 2022
    Publication date: February 9, 2023
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Publication number: 20210111260
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Patent number: 10903327
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: January 26, 2021
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Publication number: 20200258994
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Patent number: 9997523
    Abstract: A static random access memory (SRAM) cell can include a first pull-up transistor, a first pull-down transistor, a second pull-up transistor, a second pull-down transistor, a first access transistor, and a second access transistor, all being coupled together in a 6 transistor SRAM cell, wherein each of the transistors is configured as a vertical channel transistor.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: June 12, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Toshiro Nakanishi, Donghwan Kim, Suhwan Kim, Yubin Kim, Jin Soak Kim, Gabjin Nam, Sungkweon Baek, Taehyun An, Eunae Chung
  • Patent number: 9932973
    Abstract: In a reciprocating pump comprising a reciprocating member adapted to reciprocate as driven by a drive unit contained in a drive unit case, so as to perform a pumping action such that a liquid in use is aspirated into a pump chamber formed axially in front of the reciprocating member and pushed out under pressure and further comprising a high-pressure seal in slidable contact with an outer peripheral surface of the reciprocating member axially behind the pump chamber so as to prevent the liquid in use from leaking out when a high pressure is generated in the pump chamber, a flow path for the liquid in use to flow so as to bathe the drive unit therewith is provided within the drive unit case, while the rear side of the high-pressure seal is in contact with the liquid in use flowing through the drive unit case.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: April 3, 2018
    Assignee: Maruyama Mfg. Co., Inc.
    Inventor: Toshiro Nakanishi
  • Publication number: 20170345907
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Application
    Filed: August 18, 2017
    Publication date: November 30, 2017
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Publication number: 20170317214
    Abstract: A semiconductor device is provided. The semiconductor device includes a drain region and a source region spaced apart from each other, a semiconductor pattern disposed between the drain region and the source region and comprising a first region and a second region, wherein a thickness of the first region is larger than a thickness of the second region, and the first region is disposed between the drain region and the second region, and a gate electrode intersecting the semiconductor pattern.
    Type: Application
    Filed: December 6, 2016
    Publication date: November 2, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Toshiro NAKANISHI, Kab Jin NAM, Lijie ZHANG
  • Publication number: 20170294441
    Abstract: A static random access memory (SRAM) cell can include a first pull-up transistor, a first pull-down transistor, a second pull-up transistor, a second pull-down transistor, a first access transistor, and a second access transistor, all being coupled together in a 6 transistor SRAM cell, wherein each of the transistors is configured as a vertical channel transistor.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 12, 2017
    Inventors: Toshiro Nakanishi, Donghwan Kim, Suhwan Kim, Yubin Kim, Jin Soak Kim, Gabjin Nam, Sungkweon Baek, Taehyun An, Eunae Chung
  • Patent number: 9768266
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Patent number: 9721957
    Abstract: A static random access memory (SRAM) cell can include a first pull-up transistor, a first pull-down transistor, a second pull-up transistor, a second pull-down transistor, a first access transistor, and a second access transistor, all being coupled together in a 6 transistor SRAM cell, wherein each of the transistors is configured as a vertical channel transistor.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: August 1, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Toshiro Nakanishi, Donghwan Kim, Suhwan Kim, Yubin Kim, Jin Soak Kim, Gabjin Nam, Sungkweon Baek, Taehyun An, Eunae Chung
  • Patent number: 9564499
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: February 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Soo Seol, Chanjin Park, Ki-Hyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Ju-Yul Lee
  • Patent number: 9564435
    Abstract: A semiconductor device includes a substrate having a logic device region including logic devices thereon, and an input/output (I/O) device region including I/O devices thereon adjacent the logic device region. A first fin field-effect transistor (FinFET) on the logic device region includes a first semiconductor fin protruding from the substrate, and a triple-gate structure having a first gate dielectric layer and a first gate electrode thereon. A second FinFET on the I/O device region includes a second semiconductor fin protruding from the substrate, and a double-gate structure having a second gate dielectric layer and a second gate electrode thereon. The first and second gate dielectric layers have different thicknesses. Related devices and fabrication methods are also discussed.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: February 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-ae Chung, Jung-dal Choi, Toshiro Nakanishi, Yu-bin Kim, Gab-jin Nam, Dong-kyu Lee, Guangfan Jiao
  • Patent number: 9536970
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: January 3, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Dongchul Yoo, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Patent number: 9443735
    Abstract: There is provided a method of manufacturing a semiconductor device including: preparing a semiconductor substrate having an active region; forming a dielectric layer for gate insulation on the active region; forming a curing layer with a material containing germanium (Ge) on the dielectric layer; heat-treating the curing layer; and removing the curing layer. The germanium-containing material may be silicon germanium (SiGe) or germanium (Ge).
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 13, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Soak Kim, Gab Jin Nam, Dong Hwan Kim, Su Hwan Kim, Toshiro Nakanishi, Sung Kweon Baek, Tae Hyun An, Eun Ae Chung
  • Publication number: 20160104705
    Abstract: A semiconductor device includes a substrate having a logic device region including logic devices thereon, and an input/output (I/O) device region including I/O devices thereon adjacent the logic device region. A first fin field-effect transistor (FinFET) on the logic device region includes a first semiconductor fin protruding from the substrate, and a triple-gate structure having a first gate dielectric layer and a first gate electrode thereon. A second FinFET on the I/O device region includes a second semiconductor fin protruding from the substrate, and a double-gate structure having a second gate dielectric layer and a second gate electrode thereon. The first and second gate dielectric layers have different thicknesses. Related devices and fabrication methods are also discussed.
    Type: Application
    Filed: June 29, 2015
    Publication date: April 14, 2016
    Inventors: Eun-ae Chung, Jung-dal Choi, Toshiro Nakanishi, Yu-bin Kim, Gab-jin Nam, Dong-kyu Lee, Guangfan Jiao
  • Publication number: 20150311301
    Abstract: Three-dimensional semiconductor memory devices and methods of fabricating the same. The three-dimensional semiconductor devices include an electrode structure with sequentially-stacked electrodes disposed on a substrate, semiconductor patterns penetrating the electrode structure, and memory elements including a first pattern and a second pattern interposed between the semiconductor patterns and the electrode structure, the first pattern vertically extending to cross the electrodes and the second pattern horizontally extending to cross the semiconductor patterns.
    Type: Application
    Filed: July 10, 2015
    Publication date: October 29, 2015
    Inventors: Kwang Soo Seol, Chanjin Park, Kihyun Hwang, Hanmei Choi, Sunghoi Hur, Wansik Hwang, Toshiro Nakanishi, Kwangmin Park, Juyul Lee
  • Patent number: 9153696
    Abstract: A semiconductor device includes a substrate including an NMOS region, a fin active region protruding from the substrate in the NMOS region, the fin active region including an upper surface and a sidewall, a gate dielectric layer on the upper surface and the sidewall of the fin active region, a first metal gate electrode on the gate dielectric layer, the first metal gate electrode having a first thickness at the upper surface of the fin active region and a second thickness at the sidewall of the fin active region, and a second metal gate electrode on the first metal gate electrode, the second metal gate electrode having a third thickness at the upper surface of the fin active region and a fourth thickness at the sidewall of the fin active region, wherein the third thickness is less than the fourth thickness.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Hyun An, Toshiro Nakanishi, Gab-Jin Nam, Jong-Ho Lee