Patents by Inventor Ha Yong YANG

Ha Yong YANG 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: 11038019
    Abstract: A method for manufacturing a power semiconductor device includes forming a trench in a semiconductor substrate, forming a gate insulation film and a gate electrode in the trench, implanting a first conductivity type impurity into the semiconductor substrate to form a first conductivity type body region, implanting a second conductivity type impurity onto a surface of the semiconductor substrate to form a second conductivity type source region, forming an interlayer insulation film in the trench, implanting the first conductivity type impurity onto the surface of the semiconductor substrate to form a first conductivity type highly doped body contact region, exposing a portion of a side surface of the trench, and forming a source metal to be in contact with the exposed side surface of the trench.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: June 15, 2021
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Seong Jo Hong, Soo Chang Kang, Ha Yong Yang, Young Ho Seo
  • Patent number: 10686051
    Abstract: A method of manufacturing a power semiconductor device includes forming trenches in a substrate, wherein the substrate includes a first surface and a second surface opposite to the first surface, forming a gate insulating layer and a gate electrode in each of the trenches, forming a P-type base region between the trenches in the substrate, performing a first implantation process using P-type dopants implanted onto the P-type base region, forming an N+ source region in the substrate, forming an interlayer insulating layer on the N+ source region, performing a second implantation process using P-type dopants to form a P+ doped region on the P-type base region, forming an emitter electrode in contact with the N+ source region and the P+ doped region, forming a P-type collector region on the second surface of the substrate, and forming a drain electrode on the P-type collector region.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 16, 2020
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
  • Publication number: 20200144366
    Abstract: A method for manufacturing a power semiconductor device includes forming a trench in a semiconductor substrate, forming a gate insulation film and a gate electrode in the trench, implanting a first conductivity type impurity into the semiconductor substrate to form a first conductivity type body region, implanting a second conductivity type impurity onto a surface of the semiconductor substrate to form a second conductivity type source region, forming an interlayer insulation film in the trench, implanting the first conductivity type impurity onto the surface of the semiconductor substrate to form a first conductivity type highly doped body contact region, exposing a portion of a side surface of the trench, and forming a source metal to be in contact with the exposed side surface of the trench.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 7, 2020
    Applicant: Magnachip Semiconductor, Ltd.
    Inventors: Seong Jo HONG, Soo Chang KANG, Ha Yong YANG, Young Ho SEO
  • Patent number: 10593758
    Abstract: A method for manufacturing a power semiconductor device includes forming a trench in a semiconductor substrate, forming a gate insulation film and a gate electrode in the trench, implanting a first conductivity type impurity into the semiconductor substrate to form a first conductivity type body region, implanting a second conductivity type impurity onto a surface of the semiconductor substrate to form a second conductivity type source region, forming an interlayer insulation film in the trench, implanting the first conductivity type impurity onto the surface of the semiconductor substrate to form a first conductivity type highly doped body contact region, exposing a portion of a side surface of the trench, and forming a source metal to be in contact with the exposed side surface of the trench.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 17, 2020
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Seong Jo Hong, Soo Chang Kang, Ha Yong Yang, Young Ho Seo
  • Patent number: 10504994
    Abstract: Provided is a power semiconductor device and a fabrication method thereof are provided. The power semiconductor device includes: a first epitaxial layer; a collector layer formed on one side of the first epitaxial layer; and a second epitaxial layer formed on another side of the first epitaxial layer, the first epitaxial layer having a higher doping concentration than the second epitaxial layer.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: December 10, 2019
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Ho Hyun Kim, Seung Bae Hur, Seung Wook Song, Jeong Hwan Park, Ha Yong Yang, In Su Kim
  • Publication number: 20190237544
    Abstract: A method for manufacturing a power semiconductor device includes forming a trench in a semiconductor substrate, forming a gate insulation film and a gate electrode in the trench, implanting a first conductivity type impurity into the semiconductor substrate to form a first conductivity type body region, implanting a second conductivity type impurity onto a surface of the semiconductor substrate to form a second conductivity type source region, forming an interlayer insulation film in the trench, implanting the first conductivity type impurity onto the surface of the semiconductor substrate to form a first conductivity type highly doped body contact region, exposing a portion of a side surface of the trench, and forming a source metal to be in contact with the exposed side surface of the trench.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 1, 2019
    Applicant: Magnachip Semiconductor, Ltd.
    Inventors: Seong Jo HONG, Soo Chang KANG, Ha Yong YANG, Young Ho SEO
  • Patent number: 10263123
    Abstract: Provided are an electrostatic discharge (ESD) device and method of fabricating the same where the ESD device is configured to prevent electrostatic discharge which can be a cause to product failure. More particularly, the ESD device provided includes a Zener diode and a plurality of PN diodes by improving the architecture of an area wherein a Zener diode is configured compared to alternatives, to provide improved functionality when protecting against ESD events.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: April 16, 2019
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Ho Hyun Kim, Ha Yong Yang, Jeong Hwan Park
  • Patent number: 10217836
    Abstract: A method of manufacturing a power semiconductor device includes forming trenches in a substrate, wherein the substrate includes a first surface and a second surface opposite to the first surface, forming a gate insulating layer and a gate electrode in each of the trenches, forming a P-type base region between the trenches in the substrate, performing a first implantation process using P-type dopants implanted onto the P-type base region, forming an N+ source region in the substrate, forming an interlayer insulating layer on the N+ source region, performing a second implantation process using P-type dopants to form a P+ doped region on the P-type base region, forming an emitter electrode in contact with the N+ source region and the P+ doped region, forming a P-type collector region on the second surface of the substrate, and forming a drain electrode on the P-type collector region.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 26, 2019
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
  • Publication number: 20180358451
    Abstract: A method of manufacturing a power semiconductor device includes forming trenches in a substrate, wherein the substrate includes a first surface and a second surface opposite to the first surface, forming a gate insulating layer and a gate electrode in each of the trenches, forming a P-type base region between the trenches in the substrate, performing a first implantation process using P-type dopants implanted onto the P-type base region, forming an N+ source region in the substrate, forming an interlayer insulating layer on the N+ source region, performing a second implantation process using P-type dopants to form a P+ doped region on the P-type base region, forming an emitter electrode in contact with the N+ source region and the P+ doped region, forming a P-type collector region on the second surface of the substrate, and forming a drain electrode on the P-type collector region.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Applicant: MagnaChip Semiconductor, Ltd.
    Inventors: Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
  • Patent number: 10103221
    Abstract: The present examples relate to a power semiconductor device. The present examples also relate to a power semiconductor device that maintains a breakdown voltage and reduces a gate capacitance through improving the structure of an Injection Enhanced Gate Transistor (IEGT), and thereby reduces strength of an electric field compared to alternative technologies. Accordingly, the present examples provide a power semiconductor device with a small energy consumption and with an improved switching functionality.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: October 16, 2018
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: In Su Kim, Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
  • Publication number: 20180261680
    Abstract: A method of manufacturing a power semiconductor device includes forming trenches in a substrate, wherein the substrate includes a first surface and a second surface opposite to the first surface, forming a gate insulating layer and a gate electrode in each of the trenches, forming a P-type base region between the trenches in the substrate, performing a first implantation process using P-type dopants implanted onto the P-type base region, forming an N+ source region in the substrate, forming an interlayer insulating layer on the N+ source region, performing a second implantation process using P-type dopants to form a P+ doped region on the P-type base region, forming an emitter electrode in contact with the N+ source region and the P+ doped region, forming a P-type collector region on the second surface of the substrate, and forming a drain electrode on the P-type collector region.
    Type: Application
    Filed: August 25, 2017
    Publication date: September 13, 2018
    Applicant: Magnachip Semiconductor, Ltd.
    Inventors: Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
  • Publication number: 20170256607
    Abstract: The present examples relate to a power semiconductor device. The present examples also relate to a power semiconductor device that maintains a breakdown voltage and reduces a gate capacitance through improving the structure of an Injection Enhanced Gate Transistor (IEGT), and thereby reduces strength of an electric field compared to alternative technologies. Accordingly, the present examples provide a power semiconductor device with a small energy consumption and with an improved switching functionality.
    Type: Application
    Filed: May 18, 2017
    Publication date: September 7, 2017
    Applicant: Magnachip Semiconductor, Ltd.
    Inventors: In Su KIM, Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
  • Patent number: 9691844
    Abstract: The present examples relate to a power semiconductor device. The present examples also relate to a power semiconductor device that maintains a breakdown voltage and reduces a gate capacitance through improving the structure of an Injection Enhanced Gate Transistor (IEGT), and thereby reduces strength of an electric field compared to alternative technologies. Accordingly, the present examples provide a power semiconductor device with a small energy consumption and with an improved switching functionality.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 27, 2017
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: In Su Kim, Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
  • Publication number: 20160336393
    Abstract: The present examples relate to a power semiconductor device. The present examples also relate to a power semiconductor device that maintains a breakdown voltage and reduces a gate capacitance through improving the structure of an Injection Enhanced Gate Transistor (IEGT), and thereby reduces strength of an electric field compared to alternative technologies. Accordingly, the present examples provide a power semiconductor device with a small energy consumption and with an improved switching functionality.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 17, 2016
    Applicant: Magnachip Semiconductor, Ltd.
    Inventors: In Su KIM, Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
  • Publication number: 20160141429
    Abstract: Provided are an electrostatic discharge (ESD) device and method of fabricating the same where the ESD device is configured to prevent electrostatic discharge which can be a cause to product failure. More particularly, the ESD device provided includes a Zener diode and a plurality of PN diodes by improving the architecture of an area wherein a Zener diode is configured compared to alternatives, to provide improved functionality when protecting against ESD events.
    Type: Application
    Filed: June 9, 2015
    Publication date: May 19, 2016
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Ho Hyun KIM, Ha Yong YANG, Jeong Hwan PARK
  • Publication number: 20150325653
    Abstract: Provided is a power semiconductor device and a fabrication method thereof are provided. The power semiconductor device includes: a first epitaxial layer; a collector layer formed on one side of the first epitaxial layer; and a second epitaxial layer formed on another side of the first epitaxial layer, the first epitaxial layer having a higher doping concentration than the second epitaxial layer.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Applicant: MagnaChip Semiconductor, Ltd.
    Inventors: Ho Hyun KIM, Seung Bae HUR, Seung Wook SONG, Jeong Hwan PARK, Ha Yong YANG, In Su KIM
  • Patent number: 9123769
    Abstract: Provided is a power semiconductor device and a fabrication method thereof are provided. The power semiconductor device includes: a first epitaxial layer; a collector layer formed on one side of the first epitaxial layer; and a second epitaxial layer formed on another side of the first epitaxial layer, the first epitaxial layer having a higher doping concentration than the second epitaxial layer.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: September 1, 2015
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Ho Hyun Kim, Seung Bae Hur, Seung Wook Song, Jeong Hwan Park, Ha Yong Yang, In Su Kim
  • Publication number: 20140070267
    Abstract: Provided is a power semiconductor device and a fabrication method thereof are provided. The power semiconductor device includes: a first epitaxial layer; a collector layer formed on one side of the first epitaxial layer; and a second epitaxial layer formed on another side of the first epitaxial layer, the first epitaxial layer having a higher doping concentration than the second epitaxial layer.
    Type: Application
    Filed: June 12, 2013
    Publication date: March 13, 2014
    Inventors: Ho Hyun KIM, Seung Bae HUR, Seung Wook SONG, Jeong Hwan PARK, Ha Yong YANG, In Su KIM