Patents by Inventor Byoung Hwa Lee

Byoung Hwa Lee 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: 9099250
    Abstract: There is provided a multilayer ceramic capacitor to be embedded in a board, including: a ceramic body; first and second internal electrodes alternately exposed through end surfaces of the ceramic body; first and second external electrodes formed on end surfaces of the ceramic body; and first and second plating layers enclosing the first and second external electrodes, wherein when distance from one end of bands of the first or second external electrode to the other end thereof is ‘A’ and distance between points at which a virtual line drawn from a point vertically spaced apart from a surface of the first or second plating layer at a point ½×A from one end of the bands inwardly of the ceramic body by 3 ?m in length direction of the ceramic body intersects points on the surface of the first or second plating layer is ‘B,’ B/A?0.6.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Eun Hyuk Chae, Jin Man Jung, Byoung Hwa Lee, Jin Woo Lee, Kyu Ree Kim
  • Patent number: 9099240
    Abstract: A multilayered ceramic capacitor includes a ceramic body in which a plurality of dielectric layers having an average thickness of 0.2 to 2.0 ?m are stacked; an active layer including a plurality of first and second internal electrodes alternately exposed to both end surfaces of the ceramic body, having the dielectric layer interposed therebetween, to form capacitance; an upper cover layer formed above the active layer; a lower cover layer formed below the active layer and thicker than the upper cover layer; and first and second external electrodes covering both end surfaces of the ceramic body, wherein the dielectric layer is configured of dielectric grains, and when an average thickness of the dielectric layer is defined as td, an average thickness of the first and second internal electrodes is defined as te, and an average grain size of the dielectric grains is defined as Da, Da?td/3 and 0.2 ?m<te<(td)1/2 are satisfied.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Cheol Park, Sang Soo Park, Young Ghyu Ahn, Byoung Hwa Lee
  • Patent number: 9093223
    Abstract: A multilayer ceramic capacitor includes: a ceramic body having laminated dielectric layers having an average thickness of 0.2-2.0 ?m; an active layer including first and second internal electrodes alternately exposed through end surfaces of the ceramic body having the dielectric layer interposed therebetween and contributing to capacitance formation; upper and lower cover layers respectively formed above and below the active layer, the lower cover layer being thicker than the upper cover layer; first and second external electrodes covering the end surfaces of the ceramic body, wherein a bottommost internal electrode adjacent to the lower cover layer has an oxide layer formed on at least one of top and bottom surfaces thereof, and when lengths and thicknesses of the bottommost internal electrode and the oxide layer are denoted by ‘Le,’ ‘te’ and ‘Lo,’ ‘to’, respectively, in a cross section of the ceramic body taken in length-thickness direction, 50%<Lo/Le×100 and 30%<to/te×100<80% are satisfied.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: July 28, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Cheol Park, Sang Soo Park, Young Ghyu Ahn, Byoung Hwa Lee
  • Patent number: 9087646
    Abstract: There is provided a multilayered ceramic capacitor, including: a ceramic body; an active layer including a plurality of first and second internal electrodes; an upper cover layer; a lower cover layer formed below the active layer, the lower cover layer being thicker than the upper cover layer; first and second external electrodes; at least one pair of first and second internal electrodes repeatedly formed inside the lower cover layer, wherein, when A is defined as 1/2 of an overall thickness of the ceramic body, B is defined as a thickness of the lower cover layer, C is defined as 1/2 of an overall thickness of the active layer, and D is defined as a thickness of the upper cover layer, a ratio of deviation between a center of the active layer and a center of the ceramic body, (B+C)/A, satisfies 1.063?(B+C)/A?1.745.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Ghyu Ahn, Sang Soo Park, Min Cheol Park, Byoung Hwa Lee
  • Patent number: 9076596
    Abstract: There are provided a laminated ceramic electronic component and a method of fabricating the same. The laminated ceramic electronic component include a ceramic body including a dielectric layer; and first and second internal electrodes disposed to face each other, having the dielectric layer interposed therebetween within the ceramic body, wherein the ceramic body includes an active layer that is a capacitance forming part and a cover layer that is a non-capacitance forming part formed on at least one of a top surface and a bottom surface of the active layer, and when a thickness of the ceramic body is t and a thickness of the cover layer is T, T?t×0.05 is satisfied and when an average particle diameter of a dielectric grain in the active layer is Da and an average particle diameter of a dielectric grain in the cover layer is Dc, 0.7?Dc/Da?1.5 is satisfied.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Hyun Yoon, Byoung Hwa Lee, Chang Hoon Kim, Sang Hoon Kwon
  • Patent number: 9076578
    Abstract: There is provided a dielectric composition, including; a base powder including BamTiO3 (0.995?m?1.010); a first sub-component including 0.05 to 4.00 moles of an oxide or carbonate containing at least one rare-earth element based on 100 moles of the base powder; a second sub-component including 0.05 to 0.70 moles of an oxide or carbonate containing at least one transition metal; a third sub-component including 0.20 to 2.00 moles of a Si oxide; a fourth sub-component including 0.02 to 1.00 mole of an Al oxide; and a fifth sub-component including 20 to 140% of an oxide containing at least one of Ba and Ca, based on the third sub-component.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung Kang, Du Won Choi, Min Sung Song, Sang Hoon Kwon, Chang Hoon Kim, Byoung Hwa Lee
  • Publication number: 20150170841
    Abstract: A multilayer ceramic capacitor may include: a ceramic body including a plurality of dielectric layers; a capacitor unit disposed in an upper portion of the ceramic body and including a plurality of first and second internal electrodes; an equivalent series resistance (ESR) controller disposed in a lower portion of the ceramic body and including a plurality of third and fourth internal electrodes; a gap layer disposed between the capacitor unit and the ESR controller; first and second external electrodes disposed on the first and second end surfaces of the ceramic body and electrically connected to the first and second internal electrodes; and third and fourth external electrodes disposed on the first and second lateral surfaces of the ceramic body and electrically connected to the third and fourth internal electrodes.
    Type: Application
    Filed: May 20, 2014
    Publication date: June 18, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Ghyu AHN, Min Cheol PARK, Sang Soo PARK, Byoung Hwa LEE
  • Patent number: 9042080
    Abstract: There are provided a multilayer ceramic electronic component and a method of manufacturing the same. Here, an average diameter (Dc) of ceramic grains in a cover area is smaller than an average diameter (Da) of ceramic grains in the active area, and when a thickness of the cover area is expressed by Tc, 9 um?Tc?25 um and Tc/Dc?55 are satisfied. A multilayer ceramic capacitor having excellent moisture-resistance properties may be obtained.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: May 26, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyo Jung Kim, Seok Hyun Yoon, Chang Hoon Kim, Byoung Hwa Lee, Sang Hoon Kwon
  • Patent number: 9036330
    Abstract: A multilayer chip capacitor includes: a capacitor main body; a plurality of first and second inner electrodes; and m (m?3) number of first and second outer electrodes. The plurality of first and second inner electrodes are connected with two outer electrodes positioned on both opposing surfaces and having the same polarity as that of the first and second inner electrodes, and classified into a plurality of groups depending on the locations of the outer electrodes connected to the first and second inner electrodes. At least one of two outer electrodes connected with inner electrodes of each group is different from an outer electrode connected with inner electrodes of a different group having the same polarity, and inner electrodes of one group are connected to outer electrodes connected with at least another one group so that all the inner electrodes belonging to the same polarity can be electrically connected.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: May 19, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byoung Hwa Lee, Sung Kwon Wi, Hae Suk Chung, Dong Seok Park, Sang Soo Park, Min Cheol Park
  • Publication number: 20150124370
    Abstract: A multilayer ceramic capacitor may include a ceramic body having a plurality of dielectric layers; first and second internal electrodes disposed in the ceramic body to be alternately exposed to the first and second end surfaces of the ceramic body, having the dielectric layers interposed therebetween; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively. The first and second external electrodes may include: first and second internal conductive layers; first and second insulating layers; and first and second external conductive layers.
    Type: Application
    Filed: March 13, 2014
    Publication date: May 7, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Ghyu AHN, Sang Soo PARK, Hwi Geun IM, Hyun Tae KIM, Soon Ju LEE, Heung Kil PARK, Byoung Hwa LEE, Min Cheol PARK
  • Publication number: 20150114702
    Abstract: A multilayer ceramic capacitor may include a ceramic body and an active layer. The ceramic body includes three external electrodes disposed on amounting surface thereof so as to be spaced apart from each other, and first, second, and third lead parts extending from first and second internal electrodes of the ceramic body so as to be exposed to the mounting surface of the ceramic body. One side of at least one of the first, second, and third lead parts connected to the mounting surface of the ceramic body may be at least partially formed as an inclined extension portion that is inclined with respect to an outer periphery of the first or second internal electrode.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 30, 2015
    Inventors: Kyo Kwang LEE, Jin KIM, Young Ghyu AHN, Byoung Hwa LEE
  • Publication number: 20150114705
    Abstract: There are provided a multilayer ceramic capacitor and a board having the same. The multilayer ceramic capacitor may include: three external electrodes disposed on a mounting surface of a ceramic body to be spaced apart from each other and connected to lead portions of internal electrodes, wherein an interval between adjacent lead portions is 500.7 ?m or less, widths of one-side margin portions of the external electrodes in a length direction of the ceramic body that are not in contact with the corresponding lead portions are 20.2 ?m or more.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Young Ghyu AHN, Hyun Tae KIM, Hwi Geun IM, Jin KIM, Kyo Kwang LEE, Byoung Hwa LEE
  • Publication number: 20150098202
    Abstract: A multilayer ceramic electronic component embedded in a board may include: a ceramic body including dielectric layers; a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body; and first and second external electrodes formed on both end portions of the ceramic body, respectively. The first external electrode may include a first base electrode and a first terminal electrode, the second external electrode may include a second base electrode and a second terminal electrode, 400 nm?Ra?600 nm may be satisfied when a surface roughness in a region of 50 ?m×50 ?m in the first and second terminal electrodes is defined as Ra, and 130 nm?Ra??400 nm may be satisfied when a surface roughness in a region of 10 ?m×10 ?m in the first and second terminal electrodes is defined as Ra?.
    Type: Application
    Filed: May 2, 2014
    Publication date: April 9, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byoung Hwa LEE, Hai Joon LEE, Eun Hyuk CHAE, Bae Gen LEE, Jin Man JUNG
  • Publication number: 20150090485
    Abstract: A multilayer ceramic capacitor may include: three external electrodes disposed on amounting surface of a ceramic body to be spaced apart from one another. When a thickness of an active layer including a plurality of first and second internal electrodes disposed therein is defined as AT, and a gap between a first or second lead part of the first internal electrode and a third lead part of the second internal electrode is defined as LG, the following Equation may be satisfied: 0.00044?LG*log [1/AT]?0.00150.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 2, 2015
    Inventors: Byoung Hwa LEE, Kyo Kwang LEE, Min Cheol PARK, Young Ghyu AHN, Sang Soo PARK
  • Publication number: 20150075853
    Abstract: There is provided a multilayer ceramic electronic component embedded in a board including: a ceramic body including dielectric layers; an active layer including a plurality of first and second internal electrodes, having the dielectric layer therebetween, to thereby form capacitance; upper and lower cover layers formed in upper and lower portions of the active layer; and first and second external electrodes formed in both ends of the ceramic body, wherein the first external electrode includes a first base electrode and a first terminal electrode formed on the first base electrode, the second external electrode includes a second base electrode and a second terminal electrode formed on the second base electrode, and in the case that a thickness of the upper cover layer is tc1 and a thickness of the lower cover layer is tc2, 0.10?tc1/tc2?1.00 is satisfied.
    Type: Application
    Filed: December 19, 2013
    Publication date: March 19, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hai Joon LEE, Doo Young KIM, Byoung Hwa LEE, Jin Man JUNG
  • Publication number: 20150060121
    Abstract: There is provided a multilayer ceramic electronic part to be embedded in a board, including: a ceramic body including dielectric layers; first and second internal electrodes having first and second leads; and first and second external electrodes, wherein when lengths from edges of the first or second external electrode formed on first and second side surfaces of the ceramic body to points at which the first or second external electrode contacts the first and second leads are G1, lengths from the edges of the first or second external electrode formed on first and second side surfaces of the ceramic body to a corresponding end surface of the ceramic body are BW1, and lengths from the corresponding end surface of the ceramic body to points at which the first or second external electrode contacts the first and second leads are M1, 30 ?m?G1<BW1?M1 is satisfied.
    Type: Application
    Filed: December 20, 2013
    Publication date: March 5, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hai Joon LEE, Doo Young KIM, Byoung Hwa LEE, Eun Hyuk CHAE
  • Publication number: 20150053472
    Abstract: There is provided an embedded multilayer ceramic electronic component including: a ceramic body including a dielectric layer; a plurality of first and second internal electrodes; and first and second external electrodes formed on both end portions of the ceramic body, wherein the first and second external electrodes are extended to first and second main surfaces of the ceramic body, and when a thickness of the ceramic body is defined as ts, a maximum thickness of the first and second external electrodes formed on the first and second main surfaces of the ceramic body is defined as tb, a minimum distance of the first and second external electrodes formed on first and second end surfaces of the ceramic body in a length direction of the ceramic body is defined as ta, tb/ts and ta/tb satisfy the following Equations, respectively: 0.1?tb/ts?1.0 and 0.5?ta/tb?2.0.
    Type: Application
    Filed: December 19, 2013
    Publication date: February 26, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo LEE, Hai Joon LEE, Byoung Hwa LEE, Jin Man JUNG
  • Publication number: 20150053471
    Abstract: A multilayer ceramic electronic part to be embedded in a board includes a ceramic body including dielectric layers and having main surfaces, side surfaces, and end surfaces; first and second internal electrodes including first and second leads exposed to the main surfaces; and first and second external electrodes formed on the end surfaces and extending to the main surfaces, wherein when a length from one of ends of the first or second external electrode formed on the main surfaces to a point at which the first or second external electrode contacts the first and second leads is G, a length from one of the ends of the first or second external electrode to the end surfaces is BW, and a length from the end surfaces to a point at which the first or second external electrode contacts the first and second leads is M, 30 ?m?G<BM?M is satisfied.
    Type: Application
    Filed: November 18, 2013
    Publication date: February 26, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hai Joon LEE, Byoung Hwa LEE, Doo Young KIM, Bae Gen LEE, Eun Hyuk CHAE
  • Publication number: 20150047890
    Abstract: A multilayer ceramic capacitor may include three external electrodes disposed on a mounting surface of a ceramic body so as to be spaced apart from each other. When a height of a portion of the external electrode formed on one side surface of the ceramic body in a width direction is defined as d, and a thickness of the ceramic body is defined as T, a ratio of d/T satisfies 0.10?d/T.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Kyo Kwang LEE, Jin KIM, Young Ghyu AHN, Byoung Hwa LEE
  • Publication number: 20150047887
    Abstract: There is provided a mounting circuit board of a multilayer ceramic capacitor including a multilayer ceramic capacitor including a ceramic body in which a plurality of dielectric layers are stacked, an active layer including a plurality of first and second internal electrodes alternately exposed to both end surfaces of the ceramic body, having the dielectric layer therebetween, and first and second external electrodes extended from both end surfaces of the ceramic body to a portion of a lower surface thereof; and a printed circuit board having first and second electrode pads so that the first and second external electrodes are mounted thereon, wherein the first and second electrode pads are disposed in positions diagonally opposed to each other, based on the ceramic body.
    Type: Application
    Filed: January 2, 2014
    Publication date: February 19, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byoung Hwa LEE, Heung Kil PARK, Soon Ju LEE, Young Ghyu AHN, Sang Soo PARK