Patents by Inventor Youngho Choe

Youngho Choe 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: 8541254
    Abstract: A solar cell module and a method for manufacturing the same are discussed. The method for manufacturing a solar cell module includes forming a front protective member including a hardened first silicone resin on a first surface of a front substrate; disposing a plurality of solar cells on the front protective member; forming a back protective member including a hardened second silicone resin and a fiber material on the plurality of solar cells; and disposing a back substrate on the fiber material.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: September 24, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jongkyoung Hong, Jemin Yu, Taeyoon Kim, Eunjoo Lee, Seiyoung Mun, Youngho Choe, Taeki Woo
  • Publication number: 20130228215
    Abstract: A method of manufacturing a solar cell according to an embodiment includes the steps of: forming an emitter layer by ion-implanting a first conductive type dopant to a first surface of a semiconductor substrate; and forming a back surface field layer by ion-implanting a second conductive type dopant to a second surface of the semiconductor substrate. When an additional dopant is a dopant other than the first and second conductive type dopants, an amount of the additional dopant doped during the forming the back surface field layer is larger than an amount of the additional dopant doped during the forming the emitter layer.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 5, 2013
    Inventors: Jungmin Ha, Youngho Choe, Philwon Yoon
  • Publication number: 20130206222
    Abstract: A solar cell includes a substrate of a first conductive type, a plurality of first electrodes which are positioned on one surface of the substrate and extending in a first direction, an emitter region which is electrically connected to the first electrodes and is of a second conductive type opposite the first conductive type, a plurality of second electrodes which are positioned on another surface of the substrate and extending in the first direction, and a back surface field region including a plurality of first field regions which are locally formed at locations corresponding to the second electrodes in the same direction as the second electrodes and are electrically connected to the second electrodes. A distance between adjacent first field regions is less than a distance between adjacent second electrodes.
    Type: Application
    Filed: September 13, 2012
    Publication date: August 15, 2013
    Inventors: Jungmin HA, Youngho CHOE, Changseo PARK
  • Publication number: 20130056051
    Abstract: A solar cell is formed to have a silicon semiconductor substrate of a first conductive type; an emitter layer having a second conductive type opposite the first conductive type and formed on a first surface of the silicon semiconductor substrate; a back surface field layer having the first conductive type and formed on a second surface of the silicon semiconductor substrate opposite to the first surface; and wherein the emitter layer includes at least a first shallow doping area and the back surface field layer includes at least a second shallow doping area, and wherein a thickness of the first shallow doping area of the emitter layer is different from a thickness of the second shallow doping area of the back surface field layer.
    Type: Application
    Filed: May 11, 2012
    Publication date: March 7, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Yoonsil JIN, Hyunjung PARK, Youngho CHOE, Changseo PARK
  • Publication number: 20130025678
    Abstract: A solar cell and a method for manufacturing the same are disclosed. The solar cell may include a substrate, an emitter layer positioned at a first surface of the substrate, a first anti-reflection layer that is positioned on a surface of the emitter layer and may include a plurality of first contact lines exposing a portion of the emitter layer, a first electrode that is electrically connected to the emitter layer exposed through the plurality of first contact lines and may include a plating layer directly contacting the emitter layer, and a second electrode positioned on a second surface of the substrate.
    Type: Application
    Filed: October 28, 2010
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Goohwan Shim, Changseo Park, Philwon Yoon, Yoonsil Jin, Jinsung Kim, Youngho Choe, Jaewon Chang
  • Publication number: 20120318345
    Abstract: A solar cell includes a substrate having a first conductive type; an emitter layer formed on a front side of the substrate and having a second conductive type opposite to the first conductive type; a reflection preventing film on the emitter layer; and a plurality of finger lines that penetrate the reflection preventing film and are connected to the emitter layer. The emitter layer includes a plurality of first regions adjoining the plurality of front finger lines and a plurality of second regions disposed between the plurality of first regions, and the plurality of second regions have a thickness thicker than a thickness of the plurality of first regions. By doing so, a photovoltaic efficiency of the solar cell is improved.
    Type: Application
    Filed: March 22, 2012
    Publication date: December 20, 2012
    Inventors: Yoonsil JIN, Youngho CHOE
  • Publication number: 20120312367
    Abstract: Discussed is a solar cell including a substrate having a first conductivity type; an emitter layer including a plurality of finger lines connected with an emitter layer; a plurality of rear finger lines connected with a back surface field, wherein the emitter layer includes first areas in contact with the plurality of front finger lines and second areas positioned between the plurality of front finger lines and having a lower doping concentration than that of the first areas, the back surface field includes areas in contact with the plurality of rear finger lines, and the number of the plurality of rear finger lines positioned on a rear surface of the substrate and the number of the plurality of front finger lines positioned on a front surface of the substrate are different.
    Type: Application
    Filed: March 22, 2012
    Publication date: December 13, 2012
    Inventors: Yoonsil JIN, Youngho CHOE
  • Publication number: 20120305055
    Abstract: A solar cell module includes a plurality of solar cells, a front substrate positioned at first surfaces of the plurality of solar cells, a front protective member positioned between the front substrate and the plurality of solar cells, a back substrate positioned at second surfaces of the plurality of solar cells, and a back protective member positioned between the back substrate and the plurality of solar cells. A refractive index of the front protective member is greater than a refractive index of the back protective member.
    Type: Application
    Filed: March 19, 2012
    Publication date: December 6, 2012
    Inventors: Taeki WOO, Jongkyoung Hong, Jemin Yu, Taeyoon Kim, Eunjoo Lee, Seiyoung Mun, Youngho Choe
  • Publication number: 20120282725
    Abstract: A solar cell module and a method for manufacturing the same are discussed. The method for manufacturing a solar cell module includes forming a front protective member including a hardened first silicone resin on a first surface of a front substrate; disposing a plurality of solar cells on the front protective member; forming a back protective member including a hardened second silicone resin and a fiber material on the plurality of solar cells; and disposing a back substrate on the fiber material.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 8, 2012
    Inventors: Jongkyoung HONG, Jemin Yu, Taeyoon Kim, Eunjoo Lee, Seiyoung Mun, Youngho Choe, Taeki Woo
  • Publication number: 20120060917
    Abstract: A solar cell is provided comprising a substrate, a first insulating layer on a first surface of the substrate, the first insulating layer having a plurality of first openings that expose portions of the substrate, and a plurality of first electrodes electrically connected to the substrate through the first openings, wherein one or more of the first electrodes are configured so that a width of an upper portion located on the first insulating layer is wider than a width of a lower portion located in a corresponding first opening.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 15, 2012
    Inventors: Yoonsil JIN, Goohwan Shim, Youngho Choe, Changseo Park
  • Publication number: 20110308578
    Abstract: A solar cell module and a method for manufacturing the same are discussed. The solar cell module includes a plurality of solar cells, a front substrate a front substrate positioned at first surfaces of the plurality of solar cells, a back substrate positioned at second surfaces of the plurality of solar cells, a front protective member positioned between the front substrate and the plurality of solar cells, the front protective member including a first silicone resin, a back protective member positioned between the back substrate and the plurality of solar cells, the back protective member including a second silicone resin, and a fiber material disposed between the front substrate and the back substrate.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Inventors: Jongkyoung Hong, Jemin Yu, Taeyoon Kim, Eunjoo Lee, Seiyoung Mun, Youngho Choe, Taeki Woo
  • Publication number: 20110303266
    Abstract: A bifacial solar cell is provided includes a substrate, a plurality of first electrodes provided on a first surface of the substrate in a first direction, a plurality of first current collectors provided on the first surface in a second direction crossing the first direction, wherein the plurality of first current collectors are electrically and physically connected to the plurality of first electrodes, a plurality of second electrodes provided on a second surface of the substrate in the first direction, and a plurality of second current collectors provided on the second surface in the second direction, the plurality of second current collectors being electrically and physically connected to the plurality of second electrodes, wherein the number of the plurality of second electrodes is more than the number of the plurality of first electrodes.
    Type: Application
    Filed: August 18, 2011
    Publication date: December 15, 2011
    Inventors: Jaewon Chang, Youngho Choe
  • Publication number: 20110265870
    Abstract: A solar cell includes a substrate of a first conductive type, an emitter layer, of a second conductive type opposite the first conductive type, positioned at one surface of the substrate, a first electrode electrically connected to the emitter layer, a first protective layer positioned on a front surface of the emitter layer where the first electrode is not positioned, a back surface field layer positioned at another surface of the substrate, a second electrode electrically connected to the back surface field layer, and a second protective layer positioned on a back surface of the substrate where the second electrode is not positioned. Each of the first and second protective layers is formed of a material having fixed charges of the first conductive type.
    Type: Application
    Filed: July 13, 2011
    Publication date: November 3, 2011
    Inventors: Changseo PARK, Yoonsíl Jin, Youngho Choe
  • Publication number: 20110265864
    Abstract: A Solar cell includes a substrate of a first conductive type; a first emitter portion positioned in the substrate and containing impurities of a second conductive type opposite the first conductive type; a second emitter portion positioned at the first emitter portion and containing impurities of the second conductive type, the second emitter portion having an impurity concentration higher than an impurity concentration of the first emitter portion; a first electrode connected to the second emitter portion; and a second electrode connected to the substrate, wherein the second emitter portion has a thickness equal to or less than a thickness of the first emitter portion.
    Type: Application
    Filed: July 12, 2011
    Publication date: November 3, 2011
    Inventors: Hyungseok KIM, Youngho Choe, Jaewon Chang
  • Patent number: 8012531
    Abstract: Disclosed is a method for manufacturing a solar cell. The method includes forming an impurity layer on a substrate of a first conductive type, the impurity layer having impurities of a second conductive type opposite the first conductive type; forming a first emitter portion having a first impurity concentration in the substrate using the impurity layer by heating the substrate with the impurity layer; forming a second emitter portion having a second impurity concentration at the first emitter portion using the impurity layer by irradiating laser beams on a region of the impurity layer, the second impurity concentration being greater than the first impurity concentration; and forming a first electrode connected to the second emitter portion and a second electrode connected to the substrate.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: September 6, 2011
    Assignee: LG Electronics Inc.
    Inventors: Hyungseok Kim, Youngho Choe, Jaewon Chang
  • Publication number: 20110139243
    Abstract: A solar cell and a method for manufacturing the same are disclosed. The solar cell may include a substrate, an emitter layer positioned at a first surface of the substrate, a first anti-reflection layer that is positioned on a surface of the emitter layer and may include a plurality of first contact lines exposing a portion of the emitter layer, a first electrode that is electrically connected to the emitter layer exposed through the plurality of first contact lines and may include a plating layer directly contacting the emitter layer, and a second electrode positioned on a second surface of the substrate.
    Type: Application
    Filed: November 1, 2010
    Publication date: June 16, 2011
    Applicant: LG ELECTRONICS INC.
    Inventors: Goohwan Shim, Changseo Park, Philwon Yoon, Yoonsil Jin, Jinsung Kim, Youngho Choe, Jaewon Chang
  • Publication number: 20110140226
    Abstract: A semiconductor device includes a substrate and a first insulating layer. The first insulating layer includes a first lower layer and a first upper layer on the first lower layer. The first insulating layer has a first opening through the first lower layer and the first upper layer. A maximum width of the first opening at the first lower layer is different from a maximum width of the first opening at the first upper layer.
    Type: Application
    Filed: November 8, 2010
    Publication date: June 16, 2011
    Inventors: Yoonsil JIN, Goohwan Shim, Youngho Choe, Changseo Park
  • Publication number: 20110100459
    Abstract: A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a substrate, an emitter layer at a front surface of the substrate, a first anti-reflection layer on the emitter layer, a back surface field layer at a back surface of the substrate, and a second anti-reflection layer on the back surface field layer. The first anti-reflection layer and the second anti-reflection layer overlap may each other.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 5, 2011
    Inventors: Philwon Yoon, Changseo Park, Yoonsil Jin, Jinsung Kim, Goohwan Shim, Youngho Choe, Jaewon Chang
  • Publication number: 20110056551
    Abstract: A solar cell and a method for manufacturing the same are discussed. The solar cell includes a semiconductor substrate, a first doped region of a first conductive type, a second doped region of a second conductive type opposite the first conductive type, a back passivation layer having contact holes exposing a portion of each of the first and second doped regions, a first electrode formed on the first doped region exposed through the contact holes, a second electrode formed on the second doped region exposed through the contact holes, an alignment mark formed at one surface of the semiconductor substrate, and a textured surface that is formed at a light receiving surface of the semiconductor substrate opposite the one surface of the semiconductor substrate in which the first and second doped regions are formed.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 10, 2011
    Inventors: Sunyoung KIM, Youngho Choe
  • Publication number: 20110041911
    Abstract: A solar cell and a method of manufacturing the same are disclosed. The solar cell includes a first doped region of a first conductive type formed on a semiconductor substrate of the first conductive type, a second doped region of a second conductive type opposite the first conductive type formed on the semiconductor substrate at a location adjacent to the first doped region, a passivation layer exposing a portion of each of the first and second doped regions, a first electrode formed on the exposed portion of the first doped region, and a second electrode formed on the exposed portion of the second doped region. The first electrode includes a metal seed layer directly contacting the first doped region, and the second electrode includes a metal seed layer directly contacting the second doped region.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 24, 2011
    Inventors: Sungeun Lee, Youngho Choe