Patents by Inventor Tae Su Jang

Tae Su Jang 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: 10910224
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: February 2, 2021
    Assignee: SK hynix Inc.
    Inventors: Tae-Su Jang, Jin-Chul Park, Ji-Hwan Park, Il-Sik Jang, Seong-Wan Ryu, Se-In Kwon, Jung-Ho Shin, Dae-Jin Ham
  • Publication number: 20200411323
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Tae-Su JANG, Jin-Chul PARK, Ji-Hwan PARK, Il-Sik JANG, Seong-Wan RYU, Se-In KWON, Jung-Ho SHIN, Dae-Jin HAM
  • Patent number: 10811260
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: October 20, 2020
    Assignee: SK hynix Inc.
    Inventors: Tae-Su Jang, Jin-Chul Park, Ji-Hwan Park, Il-Sik Jang, Seong-Wan Ryu, Se-In Kwon, Jung-Ho Shin, Dae-Jin Ham
  • Publication number: 20190244820
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 8, 2019
    Inventors: Tae-Su JANG, Jin-Chul PARK, Ji-Hwan PARK, Il-Sik JANG, Seong-Wan RYU, Se-In KWON, Jung-Ho SHIN, Dae-Jin HAM
  • Patent number: 10304684
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 28, 2019
    Assignee: SK hynix Inc.
    Inventors: Tae-Su Jang, Jin-Chul Park, Ji-Hwan Park, Il-Sik Jang, Seong-Wan Ryu, Se-In Kwon, Jung-Ho Shin, Dae-Jin Ham
  • Publication number: 20180174845
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Application
    Filed: September 25, 2017
    Publication date: June 21, 2018
    Inventors: Tae-Su JANG, Jin-Chul PARK, Ji-Hwan PARK, Il-Sik JANG, Seong-Wan RYU, Se-In KWON, Jung-Ho SHIN, Dae-Jin HAM
  • Patent number: 9972627
    Abstract: A semiconductor device that has a passing gate with a single gate electrode and a main gate with lower and upper gate electrodes mitigates gate induced drain leakage (GIDL). Additional elements that help mitigate GIDL include the upper gate electrode having a lower work function than the lower gate electrode, and the lower gate electrode being disposed below a storage node junction region while the upper gate electrode is disposed at a same level as the storage node junction region.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: May 15, 2018
    Assignee: SK HYNIX INC.
    Inventors: Tae Su Jang, Jeong Seob Kye
  • Patent number: 9920782
    Abstract: An armrest lock may include a lever coupled to one side of the sliding cover, a rod provided in the sliding cover such that one side thereof is coupled to the lever, a trigger coupled to the other side of the rod and configured to operate in response to a motion of the lever, and a locking element coupled to the opening door and the armrest body and configured to be unlocked from at least one of the opening door and the armrest body when coming into contact with the trigger.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 20, 2018
    Assignees: Hyundai Motor Company, NIFCO KOREA Inc., Dongkook Inc. Co., Ltd
    Inventors: Jae Hyun An, Tae Su Jang, In Chan Jeong
  • Patent number: 9917167
    Abstract: A method for forming a semiconductor structure includes forming a trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the trench; forming a work function layer over the gate dielectric layer; recessing the work function layer, and forming a gate electrode which is positioned in the trench; and exposing the gate electrode to a thermal process, and forming a dipole induction layer between the gate electrode and the gate dielectric layer.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: March 13, 2018
    Assignee: SK Hynix Inc.
    Inventor: Tae-Su Jang
  • Publication number: 20170271464
    Abstract: A method for forming a semiconductor structure includes forming a trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the trench; forming a work function layer over the gate dielectric layer; recessing the work function layer, and forming a gate electrode which is positioned in the trench; and exposing the gate electrode to a thermal process, and forming a dipole induction layer between the gate electrode and the gate dielectric layer.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Inventor: Tae-Su JANG
  • Patent number: 9704961
    Abstract: A method for forming a semiconductor structure includes forming a trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the trench; forming a work function layer over the gate dielectric layer; recessing the work function layer, and forming a gate electrode which is positioned in the trench; and exposing the gate electrode to a thermal process, and forming a dipole induction layer between the gate electrode and the gate dielectric layer.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: July 11, 2017
    Assignee: SK Hynix Inc.
    Inventor: Tae-Su Jang
  • Publication number: 20170125532
    Abstract: A method for forming a semiconductor structure includes forming a trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the trench; forming a work function layer over the gate dielectric layer; recessing the work function layer, and forming a gate electrode which is positioned in the trench; and exposing the gate electrode to a thermal process, and forming a dipole induction layer between the gate electrode and the gate dielectric layer.
    Type: Application
    Filed: April 5, 2016
    Publication date: May 4, 2017
    Inventor: Tae-Su JANG
  • Patent number: 9608106
    Abstract: A semiconductor device and a method for forming the same are disclosed. The semiconductor device includes a first junction region formed at the bottom of a vertical pillar, a bit line formed below the first junction region, and an insulation film formed below the bit line. As a result, the 4F2-sized semiconductor device is provided and the bit line is configured in the form of a laminated structure of a conductive layer and a polysilicon layer, so that bit line resistance is reduced. In addition, the semiconductor device reduces ohmic contact resistance by forming silicide between the conductive layer and the polysilicon layer, and includes an insulation film at a position between the semiconductor substrate and the bit line, resulting in reduction of bit line capacitance. Therefore, the sensing margin of the semiconductor device is increased and the data retention time is also increased.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 28, 2017
    Assignee: SK HYNIX INC.
    Inventors: Tae Su Jang, Min Soo Yoo
  • Patent number: 9418854
    Abstract: An embodiment of the semiconductor device includes a recess formed in an active region, a gate buried in a lower part of the recess, a first capping insulation film formed over the gate, a second capping insulation film formed over the first capping insulation film, and a third capping insulation film formed over the second capping insulation film. In the semiconductor device including the buried gate, mechanical stress caused by a nitride film can be reduced by reducing the volume of a nitride film in a capping insulation film formed over a buried gate, and the ratio of silicon to nitrogen of the nitride film is adjusted, so that mechanical stress is reduced, resulting in improvement of operation characteristics of the semiconductor device.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 16, 2016
    Assignee: SK HYNIX INC.
    Inventor: Tae Su Jang
  • Publication number: 20160225900
    Abstract: A semiconductor device and a method for forming the same are disclosed. The semiconductor device includes a first junction region formed at the bottom of a vertical pillar, a bit line formed below the first junction region, and an insulation film formed below the bit line. As a result, the 4F2-sized semiconductor device is provided and the bit line is configured in the form of a laminated structure of a conductive layer and a polysilicon layer, so that bit line resistance is reduced. In addition, the semiconductor device reduces ohmic contact resistance by forming silicide between the conductive layer and the polysilicon layer, and includes an insulation film at a position between the semiconductor substrate and the bit line, resulting in reduction of bit line capacitance. Therefore, the sensing margin of the semiconductor device is increased and the data retention time is also increased.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Tae Su JANG, Min Soo YOO
  • Patent number: 9371023
    Abstract: An apparatus for opening and closing a sliding armrest console may include having a console body, an opening and closing plate rotatably secured to an upper portion of the console body to thereby open and close an upper surface of the console body, and an armrest slid from the opening and closing plate, may include a hook provided to a front end portion of the opening and closing plate and controlling opening and closing of the opening and closing plate from the console body, and a locking unit provided to the armrest, controlling a sliding operation of the armrest by a rotation operation and operating the hook together with the controlling of the sliding operation of the armrest at the same time.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: June 21, 2016
    Assignees: Hyundai Motor Company, NIFCO KOREA Inc., Dongkook Ind. Co., Ltd
    Inventors: Jae Hyun An, Tae Su Jang, In Chan Jeong
  • Patent number: 9337308
    Abstract: A semiconductor device and a method for forming the same are disclosed. The semiconductor device includes a first junction region formed at the bottom of a vertical pillar, a bit line formed below the first junction region, and an insulation film formed below the bit line. As a result, the 4F2-sized semiconductor device is provided and the bit line is configured in the form of a laminated structure of a conductive layer and a polysilicon layer, so that bit line resistance is reduced. In addition, the semiconductor device reduces ohmic contact resistance by forming silicide between the conductive layer and the polysilicon layer, and includes an insulation film at a position between the semiconductor substrate and the bit line, resulting in reduction of bit line capacitance. Therefore, the sensing margin of the semiconductor device is increased and the data retention time is also increased.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: May 10, 2016
    Assignee: SK HYNIX INC.
    Inventors: Tae Su Jang, Min Soo Yoo
  • Publication number: 20160056160
    Abstract: A semiconductor device that has a passing gate with a single gate electrode and a main gate with lower and upper gate electrodes mitigates gate induced drain leakage (GIDL). Additional elements that help mitigate GIDL include the upper gate electrode having a lower work function than the lower gate electrode, and the lower gate electrode being disposed below a storage node junction region while the upper gate electrode is disposed at a same level as the storage node junction region.
    Type: Application
    Filed: June 22, 2015
    Publication date: February 25, 2016
    Inventors: Tae Su JANG, Jeong Seob KYE
  • Publication number: 20160003275
    Abstract: An armrest lock may include a lever coupled to one side of the sliding cover, a rod provided in the sliding cover such that one side thereof is coupled to the lever, a trigger coupled to the other side of the rod and configured to operate in response to a motion of the lever, and a locking element coupled to the opening door and the armrest body and configured to be unlocked from at least one of the opening door and the armrest body when coming into contact with the trigger.
    Type: Application
    Filed: October 28, 2014
    Publication date: January 7, 2016
    Applicants: Hyundai Motor Company, NIFCO KOREA Inc., Dongkook Ind. Co., Ltd
    Inventors: Jae Hyun AN, Tae Su JANG, In Chan JEONG
  • Publication number: 20160001684
    Abstract: An apparatus for opening and closing a sliding armrest console may include having a console body, an opening and closing plate rotatably secured to an upper portion of the console body to thereby open and close an upper surface of the console body, and an armrest slid from the opening and closing plate, may include a hook provided to a front end portion of the opening and closing plate and controlling opening and closing of the opening and closing plate from the console body, and a locking unit provided to the armrest, controlling a sliding operation of the armrest by a rotation operation and operating the hook together with the controlling of the sliding operation of the armrest at the same time.
    Type: Application
    Filed: November 7, 2014
    Publication date: January 7, 2016
    Applicants: Hyundai Motor Company, NIFCO KOREA Inc., Dongkook Ind. Co., Ltd
    Inventors: Jae Hyun AN, Tae Su JANG, In Chan JEONG