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).

  • Patent number: 11166365
    Abstract: 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: Grant
    Filed: October 25, 2019
    Date of Patent: November 2, 2021
    Assignee: 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
  • Publication number: 20200170102
    Abstract: 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: Application
    Filed: October 25, 2019
    Publication date: May 28, 2020
    Applicant: 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
  • Publication number: 20190333837
    Abstract: 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: Application
    Filed: November 13, 2018
    Publication date: October 31, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung On KANG, Seong Chan PARK, Chul Kyu KIM, Kee Ju UM, Myoung Hoon KIM, Han KIM
  • Patent number: 9627470
    Abstract: 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: Grant
    Filed: June 10, 2014
    Date of Patent: April 18, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In Hyuk Song, Jae Hoon Park, Kee Ju Um, Dong Soo Seo
  • Patent number: 9466589
    Abstract: 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: Grant
    Filed: March 18, 2015
    Date of Patent: October 11, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kwang Soo Kim, Young Hoon Kwak, Chang Seob Hong, Joon Seok Chae, Kee Ju Um
  • Patent number: 9356116
    Abstract: 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: Grant
    Filed: May 9, 2013
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jaehoon Park, In Hyuk Song, Dong Soo Seo, Kwang Soo Kim, Kee Ju Um
  • Patent number: 9318423
    Abstract: 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: Grant
    Filed: December 16, 2014
    Date of Patent: April 19, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kwang Soo Kim, Kee Ju Um, Suk Ho Lee, Joon Seok Chae
  • Patent number: 9318599
    Abstract: 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: Grant
    Filed: July 15, 2014
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Kyu Sung, Jae Hoon Park, Kee Ju Um, In Hyuk Song
  • Patent number: 9318589
    Abstract: 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: Grant
    Filed: January 28, 2013
    Date of Patent: April 19, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jaehoon Park, Chang Su Jang, In Hyuk Song, Kee Ju Um, Dong Soo Seo
  • Patent number: 9287363
    Abstract: 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: Grant
    Filed: May 8, 2014
    Date of Patent: March 15, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Hoon Park, In Hyuk Song, Chang Su Jang, Kee Ju Um
  • Patent number: 9281389
    Abstract: 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: Grant
    Filed: February 4, 2013
    Date of Patent: March 8, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: Jae Hoon Park, In Hyuk Song, Dong Soo Seo, Kwang Soo Kim, Kee Ju Um
  • Patent number: 9184247
    Abstract: 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: Grant
    Filed: March 12, 2013
    Date of Patent: November 10, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In Hyuk Song, Kee Ju Um, Chang Su Jang, Jae Hoon Park, Dong Soo Seo
  • Patent number: 9153678
    Abstract: 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: Grant
    Filed: April 26, 2013
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kee Ju Um, In Hyuk Song, Chang Su Jang, Jaehoon Park, Dong Soo Seo
  • Patent number: 9147757
    Abstract: 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: Grant
    Filed: April 30, 2013
    Date of Patent: September 29, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kee Ju Um, Dong Soo Seo, Chang Su Jang, In Hyuk Song, Jaehoon Park
  • Publication number: 20150270217
    Abstract: 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: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Inventors: Kwang Soo KIM, Young Hoon KWAK, Chang Seob HONG, Joon Seok CHAE, Kee Ju UM
  • Patent number: 9100018
    Abstract: 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: Grant
    Filed: September 14, 2012
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jun Ho Lee, Bum Seok Suh, Kee Ju Um
  • Publication number: 20150214140
    Abstract: 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: Application
    Filed: December 16, 2014
    Publication date: July 30, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kwang Soo Kim, Kee Ju Um, SukHo Lee, Joon Seok Chae
  • Publication number: 20150187921
    Abstract: 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: Application
    Filed: May 8, 2014
    Publication date: July 2, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Hoon PARK, In Hyuk SONG, Dong Soo SEO, Ji Yeon OH, Kee Ju UM
  • Publication number: 20150187678
    Abstract: A power semiconductor device may include: a first conductivity-type first semiconductor layer; a second conductivity-type second semiconductor layer disposed above the first semiconductor layer; and a heat dissipation trench disposed to penetrate from an upper surface of the second semiconductor layer into a portion of the second semiconductor layer and having an insulating layer disposed on a surface thereof.
    Type: Application
    Filed: May 6, 2014
    Publication date: July 2, 2015
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Hoon PARK, Sun Jae Yoon, Chang Su Jang, Kee Ju Um, In Hyuk Song
  • Publication number: 20150187869
    Abstract: A power semiconductor device may include: a first conductivity-type first semiconductor region; a resurf region disposed in the first semiconductor region and including first conductivity-type second semiconductor regions and second conductivity-type third semiconductor regions alternately disposed in a width direction; a first conductivity-type first cover region disposed in the first semiconductor region, disposed to be contiguous with an upper surface of the resurf region, and having an impurity concentration higher than that of the first semiconductor region; a second conductivity-type fourth semiconductor region disposed above the first semiconductor region; a first conductivity-type fifth semiconductor region disposed on an inner side of an upper portion of the fourth semiconductor region; and a trench gate disposed to penetrate from the fifth semiconductor region to a portion of an upper portion of the first semiconductor region and including a gate insulating layer and a conductive material.
    Type: Application
    Filed: May 7, 2014
    Publication date: July 2, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Hoon PARK, Kyu Hyun Mo, Jae Kyu Sung, Kee Ju Um, In Hyuk Song