Patents by Inventor Keun-Hwi Cho

Keun-Hwi Cho 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: 20230299139
    Abstract: A semiconductor device includes an active region on a substrate, source/drain patterns on the active region, channel patterns on the active region and connected to the source/drain patterns, each of the channel patterns including a plurality of semiconductor patterns, which are vertically stacked to be spaced apart from each other, gate electrodes, which are respectively on the channel patterns and are extended in a first direction and parallel to each other, and active contacts, which are electrically and respectively connected to the source/drain patterns. A bottom surface of a first active contact is located at a first level, and a bottom surface of a second active contact is located at a second level higher than the first level. A bottom surface of a third active contact is located at a third level higher than the second level.
    Type: Application
    Filed: November 22, 2022
    Publication date: September 21, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun Hwi CHO, Myung Gil KANG, Gibum KIM, Dongwon KIM
  • Publication number: 20230197858
    Abstract: A semiconductor device includes first active patterns on a PMOSFET section of a logic cell region of a substrate, second active patterns on an NMOSFET section of the logic cell region, third active patterns on a memory cell region of the substrate, fourth active patterns between the third active patterns, and a device isolation layer that fills a plurality of first trenches and a plurality of second trenches. Each of the first trenches is interposed between the first active patterns and between the second active patterns. Each of the second trenches is interposed between the fourth active patterns and between the third and fourth active patterns. Each of the third and fourth active patterns includes first and second semiconductor patterns that are vertically spaced apart from each other. Depths of the second trenches are greater than depths of the first trenches.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 22, 2023
    Inventors: SOONMOON JUNG, DAEWON HA, SUNGMIN KIM, HYOJIN KIM, KEUN HWI CHO
  • Publication number: 20230170386
    Abstract: A semiconductor device includes first to fourth active patterns extending in a horizontal first direction. The second active pattern is spaced apart from the first active pattern in the first direction. The third active pattern is spaced apart from the first active pattern in a horizontal second direction. The fourth active pattern is spaced apart from the third active pattern in the first direction. A field insulating layer surrounds a sidewall of each of the first to fourth active patterns. First to fourth pluralities of nanosheets are respectively disposed the first to fourth active patterns. A first gate electrode extends in the second direction, intersects each of the first and third active patterns, and surrounds the first and third pluralities of nanosheets. A second gate electrode extends in the second direction, intersects each of the second and fourth active patterns, and surrounds the second and fourth pluralities of nanosheets.
    Type: Application
    Filed: August 16, 2022
    Publication date: June 1, 2023
    Inventors: Ho Jin LEE, Beom Jin PARK, Myoung Sun LEE, Keun Hwi CHO, Dong Won KIM
  • Publication number: 20230139574
    Abstract: A semiconductor device includes: an active pattern on a substrate, wherein the active pattern includes a plurality of channel layers stacked on one another; a plurality of source/drain patterns spaced apart from each other in a first direction and disposed on the active pattern, wherein the plurality of source/drain patterns are connected to each other through the plurality of channel layers; and first and second gate electrodes at least partially surrounding the channel layers and extending in a second direction, wherein the second direction intersects the first direction, wherein the active pattern has a first sidewall and a second sidewall that faces the first sidewall, and wherein a first distance between the first sidewall of the active pattern and an outer sidewall of the first gate electrode is different from a second distance between the second sidewall of the active pattern and an outer sidewall of the second gate electrode.
    Type: Application
    Filed: June 28, 2022
    Publication date: May 4, 2023
    Inventors: JUNGGUN YOU, Beomjin Park, Sughyun Sung, Hojin Lee, Dongwon Kim, Donggyu Lee, Myoung-Sun Lee, Keun Hwi Cho, Hanbyul Choi, Jiyong Ha
  • Publication number: 20230112528
    Abstract: Semiconductor devices include a first active pattern including a first lower pattern extending in a first direction and a first sheet pattern spaced apart from the first lower pattern; and a first gate electrode on the first lower pattern, the first gate electrode extending in a second direction different from the first direction and surrounding the first sheet pattern, wherein the first lower pattern includes a first sidewall and a second sidewall opposite to each other, each of the first sidewall of the first lower pattern and the second sidewall of the first lower pattern extends in the first direction, the first gate electrode overlaps the first sidewall of the first lower pattern in the second direction by a first depth, the first gate electrode overlaps the second sidewall of the first lower pattern in the second direction by a second depth, and the first depth is different from the second depth.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 13, 2023
    Inventors: MYUNG GIL KANG, Dong Won KIM, Woo Seok PARK, Keun Hwi CHO, Sung Gi HUR
  • Publication number: 20230107537
    Abstract: A semiconductor device including a substrate that includes first and second regions; a first active pattern on the first region and a second active pattern on the second region; a first gate electrode on the first active pattern and a second gate electrode on the second active pattern; and a first cutting pattern that penetrates the first gate electrode and a second cutting pattern that penetrates the second gate electrode, wherein a width of the first gate electrode as measured in one direction is less than a width of the second gate electrode, a maximum width of the first cutting pattern is greater than the width of the first gate electrode, and a minimum width of the second cutting pattern is less than the width of the second gate electrode.
    Type: Application
    Filed: July 7, 2022
    Publication date: April 6, 2023
    Inventors: Beomjin PARK, Myung Gil KANG, Daewon KIM, Dongwon KIM, Jaehoon SHIN, Keun Hwi CHO
  • Publication number: 20230080400
    Abstract: Semiconductor devices and methods of forming the same are disclosed. The semiconductor devices may include a substrate including a first region and a second region, which are spaced apart from each other with a device isolation layer interposed therebetween, a first gate electrode and a second gate electrode on the first and second regions, respectively, an insulating separation pattern separating the first gate electrode and the second gate electrode from each other and extending in a second direction that traverses the first direction, a connection structure electrically connecting the first gate electrode to the second gate electrode, and a first signal line electrically connected to the connection structure. The first and second gate electrodes are extended in a first direction and are aligned to each other in the first direction. The first signal line may extend in the second direction and may vertically overlap the insulating separation pattern.
    Type: Application
    Filed: October 31, 2022
    Publication date: March 16, 2023
    Inventors: KEUN HWI CHO, Soonmoon Jung, Dongwon Kim, Myung Gil Kang
  • Patent number: 11588054
    Abstract: A semiconductor device includes first active patterns on a PMOSFET section of a logic cell region of a substrate, second active patterns on an NMOSFET section of the logic cell region, third active patterns on a memory cell region of the substrate, fourth active patterns between the third active patterns, and a device isolation layer that fills a plurality of first trenches and a plurality of second trenches. Each of the first trenches is interposed between the first active patterns and between the second active patterns. Each of the second trenches is interposed between the fourth active patterns and between the third and fourth active patterns. Each of the third and fourth active patterns includes first and second semiconductor patterns that are vertically spaced apart from each other. Depths of the second trenches are greater than depths of the first trenches.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: February 21, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soonmoon Jung, Daewon Ha, Sungmin Kim, Hyojin Kim, Keun Hwi Cho
  • Publication number: 20230051602
    Abstract: A semiconductor device is provided. The semiconductor device includes: an active pattern provided on a substrate and extending in a first direction; a pair of source/drain patterns provided on the active pattern and spaced apart from each other in the first direction; a plurality of channel layers vertically stacked and spaced apart from each other on the active pattern between the pair of source/drain patterns; a gate electrode extending in a second direction between the pair of source/drain patterns, the gate electrode being provided on the active pattern and surrounding the plurality of channel layers, and the second direction intersecting the first direction; and a gate spacer provided between the plurality of channel layers, and between the gate electrode and the pair of source/drain patterns. The gate spacer includes a plurality of first spacer patterns and a plurality of second spacer patterns that are alternately stacked on sidewalls of the pair of source/drain patterns.
    Type: Application
    Filed: April 20, 2022
    Publication date: February 16, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beomjin PARK, Hyojin Kim, Myung Gil Kang, Jinbum Kim, Sangmoon Lee, Dongwon Kim, Keun Hwi Cho
  • Publication number: 20230049858
    Abstract: A semiconductor device may include: an active pattern on a substrate and extending in a first direction; a plurality of source/drain patterns on the active pattern and spaced apart from each other in the first direction; a gate electrode between the plurality of source/drain patterns that crosses the active pattern and extends in a second direction intersecting the first direction; and a plurality of channel patterns stacked on the active pattern and configured to connect two or more of the source/drain patterns to each other. The channel patterns may be spaced apart from each other. Each of the channel patterns may include a first portion between the gate electrode and the source/drain patterns, and a plurality of second portions connected to the first portion and overlapped with the gate electrode in a direction perpendicular to a plane defined by an upper surface of the substrate.
    Type: Application
    Filed: April 14, 2022
    Publication date: February 16, 2023
    Inventors: Myung Gil Kang, Dongwon Kim, Keun Hwi Cho, Daewon Ha
  • Patent number: 11563004
    Abstract: There is provided a semiconductor device having enhanced operation performance by utilizing a cut region where a gate cut is implemented. There is provided a semiconductor device comprising a first active pattern, a second active pattern, a third active pattern, and a fourth active pattern, all of which extend in parallel in a first direction, and are arranged along a second direction intersecting the first direction; a first gate electrode extended in the second direction on the first to fourth active patterns a first cut region extended in the first direction between the first active pattern and the second active pattern to cut the first gate electrode and a second cut region extended in the first direction between the third active pattern and the fourth active pattern to cut the first gate electrode, wherein one or more first dimensional features related to the first cut region is different from one or more second dimensional features related to the second cut region.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myoung-Sun Lee, Keun Hwi Cho
  • Publication number: 20220399452
    Abstract: A semiconductor device may include a first active pattern on a substrate, a pair of first source/drain patterns on the first active pattern and a first channel pattern between the first source/drain patterns, the first channel pattern including first semiconductor patterns, which are spaced apart from each other in a stacked formation, a gate electrode on the first channel pattern, a first gate cutting pattern adjacent to the first channel pattern that penetrates the gate electrode, and a first spacer pattern between the first gate cutting pattern and the first channel pattern. The first spacer pattern may include a first remaining pattern adjacent to an outermost side surface of at least one of the first semiconductor patterns and a second remaining pattern on the first remaining pattern. The second remaining pattern may be spaced apart from the first gate cutting pattern.
    Type: Application
    Filed: February 18, 2022
    Publication date: December 15, 2022
    Inventors: Beomjin Park, Myung Gil Kang, Dongwon Kim, Keun Hwi Cho
  • Publication number: 20220384623
    Abstract: A semiconductor device including a well region in a substrate, an impurity region in the well region, a first active fin on the impurity region, a second active fin on the well region, and a connection pattern penetrating the second active fin and connected to the well region may be provided. The substrate and the impurity region include impurities having a first conductivity type. The well region includes impurities having a second conductivity type different from the first conductivity type. The first active fin includes a plurality of first semiconductor patterns that are spaced apart from each other in a direction perpendicular to a top surface of the substrate. The first semiconductor patterns and the impurity region include impurities having the first conductivity type.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 1, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Myung Gil KANG, Dongwon KIM, Minyi KIM, Keun Hwi CHO
  • Publication number: 20220352342
    Abstract: A semiconductor device includes a substrate, a gate structure on the substrate and a first conductive connection group on the gate structure. The gate structure includes a gate spacer and a gate electrode. The first conductive connection group includes a ferroelectric material layer. At least a part of the ferroelectric material layer is disposed above an upper surface of the gate spacer. And the ferroelectric material layer forms a ferroelectric capacitor having a negative capacitance in the first conductive connection group.
    Type: Application
    Filed: June 13, 2022
    Publication date: November 3, 2022
    Inventors: Guk Il AN, Keun Hwi CHO, Dae Won HA, Seung Seok HA
  • Patent number: 11489055
    Abstract: Semiconductor devices and methods of forming the same are disclosed. The semiconductor devices may include a substrate including a first region and a second region, which are spaced apart from each other with a device isolation layer interposed therebetween, a first gate electrode and a second gate electrode on the first and second regions, respectively, an insulating separation pattern separating the first gate electrode and the second gate electrode from each other and extending in a second direction that traverses the first direction, a connection structure electrically connecting the first gate electrode to the second gate electrode, and a first signal line electrically connected to the connection structure. The first and second gate electrodes are extended in a first direction and are aligned to each other in the first direction. The first signal line may extend in the second direction and may vertically overlap the insulating separation pattern.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: November 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun Hwi Cho, Soonmoon Jung, Dongwon Kim, Myung Gil Kang
  • Publication number: 20220344469
    Abstract: A semiconductor device includes an active pattern on a substrate, a pair of source/drain patterns on the active pattern, a channel pattern between the pair of source/drain patterns, the channel pattern including semiconductor patterns stacked to be spaced apart from each other, and a gate electrode crossing the channel pattern and extending in a first direction. One of the pair of source/drain patterns includes a first semiconductor layer and a second semiconductor layer thereon. The first semiconductor layer is in contact with a first semiconductor pattern, which is one of the stacked semiconductor patterns. The largest widths of the first semiconductor pattern, the first semiconductor layer, and the second semiconductor layer in the first direction are a first width, a second width, a third width, respectively, and the second width is larger than the first width and smaller than the third width.
    Type: Application
    Filed: July 12, 2022
    Publication date: October 27, 2022
    Inventors: JINBUM KIM, DAHYE KIM, SEOKHOON KIM, JAEMUN KIM, ILGYOU SHIN, Haejun YU, KYUNGIN CHOI, KIHYUN HWANG, SANGMOON LEE, SEUNG HUN LEE, KEUN HWI CHO
  • Patent number: 11482606
    Abstract: Semiconductor devices include a first active pattern including a first lower pattern extending in a first direction and a first sheet pattern spaced apart from the first lower pattern; and a first gate electrode on the first lower pattern, the first gate electrode extending in a second direction different from the first direction and surrounding the first sheet pattern, wherein the first lower pattern includes a first sidewall and a second sidewall opposite to each other, each of the first sidewall of the first lower pattern and the second sidewall of the first lower pattern extends in the first direction, the first gate electrode overlaps the first sidewall of the first lower pattern in the second direction by a first depth, the first gate electrode overlaps the second sidewall of the first lower pattern in the second direction by a second depth, and the first depth is different from the second depth.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: October 25, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung Gil Kang, Dong Won Kim, Woo Seok Park, Keun Hwi Cho, Sung Gi Hur
  • Patent number: 11482522
    Abstract: Semiconductor devices are provided. A semiconductor device includes a gate structure extending in a first direction. The semiconductor device includes an active pattern intersecting the gate structure and having a width in the first direction and a height in a second direction. The width is smaller than the height. Moreover, the semiconductor device includes a source/drain region electrically connected to the active pattern.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: October 25, 2022
    Inventors: Mun Hyeon Kim, Byung Gook Park, Keun Hwi Cho, Si Hyun Kim, Ki Tae Lee
  • Publication number: 20220328496
    Abstract: A semiconductor device includes a first active pattern on a substrate, a pair of first source/drain patterns on the first active pattern and a first channel pattern between the pair of first source/drain patterns, wherein the first channel pattern includes a plurality of semiconductor patterns that are stacked and spaced apart from each other, a first gate electrode on the first channel pattern, a first gate cutting pattern that is adjacent to the first channel pattern and penetrates the first gate electrode, and a first residual pattern between the first gate cutting pattern and the first channel pattern. The first residual pattern covers an outermost sidewall of at least one semiconductor pattern of the plurality of semiconductor patterns of the first channel pattern. The first gate electrode includes, on an upper portion of the first gate electrode, a first extension that vertically overlaps the first residual pattern.
    Type: Application
    Filed: December 3, 2021
    Publication date: October 13, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Myung Gil KANG, Seunghun LEE, Sangdeok KWON, Keun Hwi CHO, Sung Gi HUR
  • Patent number: 11450761
    Abstract: A semiconductor device including a well region in a substrate, an impurity region in the well region, a first active fin on the impurity region, a second active fin on the well region, and a connection pattern penetrating the second active fin and connected to the well region may be provided. The substrate and the impurity region include impurities having a first conductivity type. The well region includes impurities having a second conductivity type different from the first conductivity type. The first active fin includes a plurality of first semiconductor patterns that are spaced apart from each other in a direction perpendicular to a top surface of the substrate. The first semiconductor patterns and the impurity region include impurities having the first conductivity type.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: September 20, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung Gil Kang, Dongwon Kim, Minyi Kim, Keun Hwi Cho