Patents by Inventor Kee Ju UM
Kee Ju UM 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: 11166365Abstract: A printed circuit board includes: a first insulating layer; and a heat radiating circuit pattern disposed on a first surface of the first insulating layer and having a pad and a via. The heat radiating circuit pattern includes: a first metal layer disposed on the first insulating layer; a graphite layer disposed on the first metal layer; and a second metal layer disposed on the graphite layer.Type: GrantFiled: October 25, 2019Date of Patent: November 2, 2021Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: A-ran Lee, Kee-Ju Um, Ju-Ho Kim, Myeong-Hui Jung, Kyuong-Hwan Lim, Jin-Won Lee, Seung-On Kang, Jong-Guk Kim
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Publication number: 20200170102Abstract: A printed circuit board includes: a first insulating layer; and a heat radiating circuit pattern disposed on a first surface of the first insulating layer and having a pad and a via. The heat radiating circuit pattern includes: a first metal layer disposed on the first insulating layer; a graphite layer disposed on the first metal layer; and a second metal layer disposed on the graphite layer.Type: ApplicationFiled: October 25, 2019Publication date: May 28, 2020Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: A-ran LEE, Kee-Ju UM, Ju-Ho KIM, Myeong-Hui JUNG, Kyuong-Hwan LIM, Jin-Won LEE, Seung-On KANG, Jong-Guk KIM
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Publication number: 20190333837Abstract: A fan-out semiconductor package includes a core member having a through-hole; a semiconductor chip disposed in the through-hole of the core member and having an active surface on which connection pads are disposed and an inactive surface disposed to oppose the active surface; a heat radiating member directly bonded to the inactive surface of the semiconductor chip; an encapsulant encapsulating at least a portion of the semiconductor chip; and a connection member disposed on the active surface of the semiconductor chip and including redistribution layers electrically connected to the connection pads of the semiconductor chip.Type: ApplicationFiled: November 13, 2018Publication date: October 31, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung On KANG, Seong Chan PARK, Chul Kyu KIM, Kee Ju UM, Myoung Hoon KIM, Han KIM
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Patent number: 9627470Abstract: There is provided a power semiconductor device including: a first semiconductor region of a first conductivity type; second semiconductor regions formed in the first semiconductor region and being of a second conductivity type; a well region formed above the second semiconductor regions and being of the second conductivity type; and a source region formed in the well region and being of the first conductivity type, wherein the second semiconductor regions include 1 to n layers formed from a lower portion of the device extending a in a direction of height of the device, and in the case that the widest width of the of the second semiconductor region of the nth layer is Pn, P1<Pn (n?2).Type: GrantFiled: June 10, 2014Date of Patent: April 18, 2017Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: In Hyuk Song, Jae Hoon Park, Kee Ju Um, Dong Soo Seo
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Patent number: 9466589Abstract: There is provided a power module package. The power module package includes: a base substrate provided with a pattern; a heat spreader formed by being stacked on an upper surface of the base substrate; and at least one first semiconductor device mounted on an upper surface of the heat spreader, wherein an outer circumferential surface of the heat spreader is provided with a coil.Type: GrantFiled: March 18, 2015Date of Patent: October 11, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kwang Soo Kim, Young Hoon Kwak, Chang Seob Hong, Joon Seok Chae, Kee Ju Um
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Patent number: 9356116Abstract: There is provided a power semiconductor device, including a first conductive type drift layer; a second conductive type body layer formed on the drift layer, a second conductive type collector layer formed below the drift layer; a first gate formed by penetrating through the body layer and a portion of the drift layer, a first conductive type emitter layer formed in the body layer and formed to be spaced apart from the first gate, a second gate covering upper portions of the body layer and the emitter layer and formed as a flat type gate on the first gate, and a segregation stop layer formed between contact surfaces of the first and second gates with the body layer, the emitter layer, and the drift layer.Type: GrantFiled: May 9, 2013Date of Patent: May 31, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jaehoon Park, In Hyuk Song, Dong Soo Seo, Kwang Soo Kim, Kee Ju Um
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Patent number: 9318589Abstract: There is provided an insulated gate bipolar transistor including: a first semiconductor area of a first conductivity type; a second semiconductor area of a second conductivity type formed on one surface of the first semiconductor area; third semiconductor areas of the first conductivity type continuously formed in a length direction on one surface of the second semiconductor area; a plurality of trenches formed between the third semiconductor areas, extending to an inside of the second semiconductor area, and being continuous in the length direction; a fourth semiconductor area of the second conductivity type formed on one surface of the third semiconductor areas, insulation layers formed inside the trenches; gate electrodes buried inside the insulation layers; and a barrier layer formed in at least one of locations corresponding to the third semiconductor areas inside the second semiconductor area.Type: GrantFiled: January 28, 2013Date of Patent: April 19, 2016Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jaehoon Park, Chang Su Jang, In Hyuk Song, Kee Ju Um, Dong Soo Seo
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Patent number: 9318599Abstract: A power semiconductor device may include: a first conductive type drift layer in which trench gates are formed; a second conductive type well region formed on the drift layer so as to contact the trench gate; a first conductive type source region formed on the well region so as to contact the trench gate; and a device protection region formed below a height of a lowermost portion of the source region in a height direction.Type: GrantFiled: July 15, 2014Date of Patent: April 19, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Kyu Sung, Jae Hoon Park, Kee Ju Um, In Hyuk Song
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Patent number: 9318423Abstract: There is provided a leadless package type power semiconductor module. According to an exemplary embodiment of the present disclosure, the leadless package type power semiconductor module includes: connection terminals of a surface mounting type (SMT) formed at edges at which respective sides of four surfaces meet each other; a first mounting area connected to the connection terminals through a bridge to be disposed at a central portion thereof and mounted with power devices or control ICs electrically connected to the power devices to control the power devices; and second mounting areas formed between the connection terminals and mounted with the power devices or the control ICs, wherein the first mounting area is disposed at a different height from the second mounting area through the bridge to generate a phase difference from the second mounting area.Type: GrantFiled: December 16, 2014Date of Patent: April 19, 2016Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Kwang Soo Kim, Kee Ju Um, Suk Ho Lee, Joon Seok Chae
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Patent number: 9287363Abstract: A method of manufacturing a semiconductor device may include: preparing a substrate formed of SiC; depositing crystalline or amorphous silicon (Si) on one surface of the substrate to form a first semiconductor layer; and performing a heat treatment under a nitrogen atmosphere to form a second semiconductor layer formed of SiCN between the substrate and the first semiconductor layer.Type: GrantFiled: May 8, 2014Date of Patent: March 15, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Hoon Park, In Hyuk Song, Chang Su Jang, Kee Ju Um
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Patent number: 9281389Abstract: Disclosed herein is a semiconductor device including: a source electrode formed on one side of an N-type AlGaN layer; N-type and P-type AlGaN layers formed on the other side of the P-type AlGaN layer and formed in a direction perpendicular to the source electrode; a gate electrode formed on one side of the N-type and P-type AlGaN layers; and a drain electrode formed on the other side of the N-type and P-type AlGaN layers.Type: GrantFiled: February 4, 2013Date of Patent: March 8, 2016Assignee: Samsung Electro-Mechanics Co., LtdInventors: Jae Hoon Park, In Hyuk Song, Dong Soo Seo, Kwang Soo Kim, Kee Ju Um
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Patent number: 9184247Abstract: Disclosed herein is a power semiconductor device. The power semiconductor device includes a second conductive type first junction termination extension (JTE) layer that is formed so as to be in contact with one side of the second conductive type well layer, a second conductive type second JTE layer that is formed on the same line as the second conductive type first JTE layer, and is formed so as to be spaced apart from the second conductive type first JTE layer in a length direction of the substrate, and a poly silicon layer that is formed so as to be in contact with the second conductive type well layer and an upper portion of the second conductive type first JTE layer.Type: GrantFiled: March 12, 2013Date of Patent: November 10, 2015Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: In Hyuk Song, Kee Ju Um, Chang Su Jang, Jae Hoon Park, Dong Soo Seo
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Patent number: 9153678Abstract: There is provided a power semiconductor device including a contact formed in an active region, a trench gate extendedly formed from the first region into a first termination region and formed alternately with the contact, a first conductive well formed between the contact of the active region and the trench gate, a first conductive well extending portion formed in the first termination region and a part of a second termination region, and a first conductive field limiting ring formed in the second termination region and contacting the well extending portion.Type: GrantFiled: April 26, 2013Date of Patent: October 6, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kee Ju Um, In Hyuk Song, Chang Su Jang, Jaehoon Park, Dong Soo Seo
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Patent number: 9147757Abstract: There is provided a power semiconductor device, including: a first conductive type drift layer, a second conductive type termination layer formed on an upper portion of an edge of the drift layer, and a high concentration first conductive type channel stop layer formed on a side surface of the edge of the drift layer.Type: GrantFiled: April 30, 2013Date of Patent: September 29, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kee Ju Um, Dong Soo Seo, Chang Su Jang, In Hyuk Song, Jaehoon Park
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Publication number: 20150270217Abstract: There is provided a power module package. The power module package includes: a base substrate provided with a pattern; a heat spreader formed by being stacked on an upper surface of the base substrate; and at least one first semiconductor device mounted on an upper surface of the heat spreader, wherein an outer circumferential surface of the heat spreader is provided with a coil.Type: ApplicationFiled: March 18, 2015Publication date: September 24, 2015Inventors: Kwang Soo KIM, Young Hoon KWAK, Chang Seob HONG, Joon Seok CHAE, Kee Ju UM
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Patent number: 9100018Abstract: A gate driver circuit applicable to an inductive load, an inverter module, and an inverter apparatus are provided. The gate driver circuit includes a high side driver having a first output side and a first control side and generating a high side gate signal; and a low side driver generating a low side gate signal, wherein the high side driver includes a first VS pad formed on the first output side; a first output pad formed on the first output side, a first VB pad formed on the first control side; and a second VB pad formed to be adjacent to the first VB pad on the first control side and electrically connected to the first VS pad; and a first circuit unit connected to the plurality of pads to provide the high side gate signal through the first output pad.Type: GrantFiled: September 14, 2012Date of Patent: August 4, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jun Ho Lee, Bum Seok Suh, Kee Ju Um
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Publication number: 20150214140Abstract: There is provided a leadless package type power semiconductor module. According to an exemplary embodiment of the present disclosure, the leadless package type power semiconductor module includes: connection terminals of a surface mounting type (SMT) formed at edges at which respective sides of four surfaces meet each other; a first mounting area connected to the connection terminals through a bridge to be disposed at a central portion thereof and mounted with power devices or control ICs electrically connected to the power devices to control the power devices; and second mounting areas formed between the connection terminals and mounted with the power devices or the control ICs, wherein the first mounting area is disposed at a different height from the second mounting area through the bridge to generate a phase difference from the second mounting area.Type: ApplicationFiled: December 16, 2014Publication date: July 30, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kwang Soo Kim, Kee Ju Um, SukHo Lee, Joon Seok Chae
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Publication number: 20150187882Abstract: A method of manufacturing a semiconductor device may include: preparing a substrate formed of SiC; depositing crystalline or amorphous silicon (Si) on one surface of the substrate to form a first semiconductor layer; and performing a heat treatment under a nitrogen atmosphere to form a second semiconductor layer formed of SiCN between the substrate and the first semiconductor layer.Type: ApplicationFiled: May 8, 2014Publication date: July 2, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Hoon PARK, In Hyuk SONG, Chang Su JANG, Kee Ju UM
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Publication number: 20150187877Abstract: A power semiconductor device may include: an active region having a channel formed therein when the power semiconductor device is turned on, the channel allowing a current to flow therethrough; a termination region formed around the active region; first trenches formed in the active region, each first trench having an insulating layer formed on a surface thereof and filled with a conductive material; and second trenches formed in the termination region, each second trench having an insulating layer formed on a surface thereof and filled with a conductive material.Type: ApplicationFiled: May 8, 2014Publication date: July 2, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Hoon PARK, Jae Kyu SUNG, In Hyuk SONG, Kee Ju UM, Dong Soo SEO
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Publication number: 20150187921Abstract: A power semiconductor device may include a first semiconductor region having a first conductivity type; a second semiconductor region having a second conductivity type and formed in an upper portion of the first semiconductor region; a third semiconductor region having a first conductivity type and formed in an upper portion of the second semiconductor region; and a trench gate formed by penetrating from the third semiconductor region to the first semiconductor region. A portion of at least one of the first semiconductor region, the second semiconductor region, and the third semiconductor region may include a device protection material of which a conduction band has a main state and a satellite state in an E-k diagram, and a curvature of the device protection material in the satellite state may be lower than a curvature thereof in the main state in the E-k diagram.Type: ApplicationFiled: May 8, 2014Publication date: July 2, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jae Hoon PARK, In Hyuk SONG, Dong Soo SEO, Ji Yeon OH, Kee Ju UM