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).
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Patent number: 11038019Abstract: 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: GrantFiled: January 9, 2020Date of Patent: June 15, 2021Assignee: MagnaChip Semiconductor, Ltd.Inventors: Seong Jo Hong, Soo Chang Kang, Ha Yong Yang, Young Ho Seo
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Patent number: 10686051Abstract: 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: GrantFiled: August 21, 2018Date of Patent: June 16, 2020Assignee: MagnaChip Semiconductor, Ltd.Inventors: Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
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Publication number: 20200144366Abstract: 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: ApplicationFiled: January 9, 2020Publication date: May 7, 2020Applicant: Magnachip Semiconductor, Ltd.Inventors: Seong Jo HONG, Soo Chang KANG, Ha Yong YANG, Young Ho SEO
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Patent number: 10593758Abstract: 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: GrantFiled: April 24, 2018Date of Patent: March 17, 2020Assignee: MagnaChip Semiconductor, Ltd.Inventors: Seong Jo Hong, Soo Chang Kang, Ha Yong Yang, Young Ho Seo
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Patent number: 10504994Abstract: 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: GrantFiled: July 22, 2015Date of Patent: December 10, 2019Assignee: MagnaChip Semiconductor, Ltd.Inventors: Ho Hyun Kim, Seung Bae Hur, Seung Wook Song, Jeong Hwan Park, Ha Yong Yang, In Su Kim
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Publication number: 20190237544Abstract: 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: ApplicationFiled: April 24, 2018Publication date: August 1, 2019Applicant: Magnachip Semiconductor, Ltd.Inventors: Seong Jo HONG, Soo Chang KANG, Ha Yong YANG, Young Ho SEO
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Patent number: 10263123Abstract: 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: GrantFiled: June 9, 2015Date of Patent: April 16, 2019Assignee: MagnaChip Semiconductor, Ltd.Inventors: Ho Hyun Kim, Ha Yong Yang, Jeong Hwan Park
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Patent number: 10217836Abstract: 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: GrantFiled: August 25, 2017Date of Patent: February 26, 2019Assignee: MagnaChip Semiconductor, Ltd.Inventors: Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
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Publication number: 20180358451Abstract: 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: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Applicant: MagnaChip Semiconductor, Ltd.Inventors: Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
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Patent number: 10103221Abstract: 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: GrantFiled: May 18, 2017Date of Patent: October 16, 2018Assignee: Magnachip Semiconductor, Ltd.Inventors: In Su Kim, Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
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Publication number: 20180261680Abstract: 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: ApplicationFiled: August 25, 2017Publication date: September 13, 2018Applicant: Magnachip Semiconductor, Ltd.Inventors: Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
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Publication number: 20170256607Abstract: 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: ApplicationFiled: May 18, 2017Publication date: September 7, 2017Applicant: Magnachip Semiconductor, Ltd.Inventors: In Su KIM, Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
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Patent number: 9691844Abstract: 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: GrantFiled: November 12, 2015Date of Patent: June 27, 2017Assignee: Magnachip Semiconductor, Ltd.Inventors: In Su Kim, Jeong Hwan Park, Seung Sik Park, Ha Yong Yang
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Publication number: 20160336393Abstract: 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: ApplicationFiled: November 12, 2015Publication date: November 17, 2016Applicant: Magnachip Semiconductor, Ltd.Inventors: In Su KIM, Jeong Hwan PARK, Seung Sik PARK, Ha Yong YANG
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Publication number: 20160141429Abstract: 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: ApplicationFiled: June 9, 2015Publication date: May 19, 2016Applicant: MAGNACHIP SEMICONDUCTOR, LTD.Inventors: Ho Hyun KIM, Ha Yong YANG, Jeong Hwan PARK
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Publication number: 20150325653Abstract: 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: ApplicationFiled: July 22, 2015Publication date: November 12, 2015Applicant: MagnaChip Semiconductor, Ltd.Inventors: Ho Hyun KIM, Seung Bae HUR, Seung Wook SONG, Jeong Hwan PARK, Ha Yong YANG, In Su KIM
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Patent number: 9123769Abstract: 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: GrantFiled: June 12, 2013Date of Patent: September 1, 2015Assignee: Magnachip Semiconductor, Ltd.Inventors: Ho Hyun Kim, Seung Bae Hur, Seung Wook Song, Jeong Hwan Park, Ha Yong Yang, In Su Kim
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Publication number: 20140070267Abstract: 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: ApplicationFiled: June 12, 2013Publication date: March 13, 2014Inventors: Ho Hyun KIM, Seung Bae HUR, Seung Wook SONG, Jeong Hwan PARK, Ha Yong YANG, In Su KIM