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).

  • Publication number: 20100319763
    Abstract: A method for manufacturing a solar cell may include forming an emitter region that forms a p-n junction with a semiconductor substrate of a first conductive type, forming a passivation layer on the semiconductor substrate, forming a dopant layer containing impurities of the first conductive type on the passivation layer, and locally forming a back surface field region at the semiconductor substrate by irradiating laser beams onto the semiconductor substrate to diffuse the impurities into the semiconductor substrate.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 23, 2010
    Inventors: Hyunjung PARK, Daeyong Lee, Youngho Choe, Dongho Han
  • Publication number: 20100229917
    Abstract: A solar cell and a solar cell module are disclosed. The solar cell includes a substrate of a first conductive type, a plurality of emitter layers of a second conductive type opposite the first conductive type, a plurality of first conductive members partially connected to the substrate, and a plurality of second conductive members partially connected to each of the plurality of emitter layers.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 16, 2010
    Inventors: Chulchae CHOI, Changseo Park, Jinsung Kim, Jaewon Chang, Hyungseok Kim, Youngho Choe, Philwon Yoon
  • Publication number: 20100218821
    Abstract: A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a substrate having a first conductive type, at least one impurity region connected to the substrate, a passivation layer positioned on the at least one impurity region, the passivation layer including at least one opening exposing a portion of the at least one impurity region, the at least one opening having at least one straight portion, a first electrode connected to the exposed portion of the at least one impurity region exposed through the at least one opening, and a second electrode connected to the substrate.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Inventors: Sunyoung KIM, Choul KIM, Youngho CHOE
  • Publication number: 20100206369
    Abstract: A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a semiconductor layer containing first impurities, a first portion positioned on a first part of one surface of the semiconductor layer, the first portion being more heavily doped with second impurities different from the first impurities than the semiconductor layer, a second portion positioned on a second part of the one surface of the semiconductor layer, the second portion being more heavily doped with the first impurities than the semiconductor layer, and a third portion positioned between the first portion and the second portion, the third portion having an impurity concentration lower than an impurity concentration of the first portion and an impurity concentration of the second portion.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Inventors: Sunyoung KIM, Choul Kim, Youngho Choe, Sungeun Lee
  • Publication number: 20100147378
    Abstract: A solar cell and a method of manufacturing the same are disclosed. The method includes simultaneously forming a first doping region of a first conductive type and a second doping region of a second conductive type opposite the first conductive type into a substrate of the first conductive type, forming a back passivation layer on the first doping region and the second doping region, removing portions of the back passivation layer to expose a portion of the first doping region and a portion of the second doping region, and forming a first electrode and a second electrode that are connected to the exposed portion of the first doping region and the exposed portion of the second doping region, respectively.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 17, 2010
    Applicant: LG Electronics Inc.
    Inventors: Sungeun Lee, Youngho Choe
  • Publication number: 20100065117
    Abstract: The present invention relates to a solar cell. The solar cell includes a substrate of a first conductive type, the substrate having a textured surface on which a plurality of projected portions are formed, and surfaces of the projected portions having at least one of a plurality of particles attached thereto and a plurality of depressions formed thereon; an emitter layer of a second conductive type opposite the first conductive type, the emitter layer being positioned in the substrate so that the emitter layer has the textured surface; an anti-reflection layer positioned on the emitter layer which has the textured surface and including at least one layer; a plurality of first electrodes electrically connected to the emitter layer; and at least one second electrode electrically connected to the substrate.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 18, 2010
    Inventors: Jinsung KIM, Chulchae Choi, Changseo Park, Jaewon Chang, Hyungseok Kim, Youngho Choe, Philwon Yoon