Patents by Inventor Shuran Sheng

Shuran Sheng 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: 20080289686
    Abstract: Methods and apparatus for reducing defects on transmitting conducting oxide (TCO) layer are provided. In one embodiment, a method for depositing a silicon layer on a transmitting conducting oxide (TCO) layer may include providing a substrate having a TCO layer disposed thereon, wherein the TCO layer has a peripheral region and a cell integrated region, the cell integrated region having laser scribing patterns disposed thereon, positioning the substrate on a substrate support assembly disposed in a processing chamber, wherein the substrate support assembly has a roughened surface in contact with the substrate, contacting a shadow frame to the peripheral region of the TCO layer and to the substrate support assembly thereby creating an electrical ground path between the TCO layer and substrate support through the shadow frame, and depositing a silicon containing layer on the TCO layer through an aperture of the shadow frame.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventors: TAE KYUNG WON, Soo Young Choi, Yong Kee Chae, Liwei Li, Shuran Sheng
  • Publication number: 20080289687
    Abstract: Methods and apparatus for reducing defects on transmitting conducting oxide (TCO) layer are provided. The method includes a method of laser scribing a TCO layer for solar cell applications. In one embodiment, a method for depositing a silicon layer on a transmitting conducting oxide (TCO) layer may include laser scribing a cell-integrated region of a TCO layer disposed on a substrate for solar applications, the TCO layer having a laser scribing free periphery region outward of the cell-integrated region, the periphery region having a width between about 10 mm and about 30 mm measured from an edge of the substrate, transferring the scribed substrate into a deposition chamber, and depositing a silicon containing layer on the TCO layer in the deposition chamber.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventors: TAE KYUNG WON, Soo Young Choi, Yong Kee Chae, Liwei Li, Shuran Sheng
  • Publication number: 20080264480
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 30, 2008
    Inventors: Soo-Young Choi, Yong-Kee Chae, Shuran Sheng
  • Publication number: 20080245414
    Abstract: An improved PV solar cell structure and methods for manufacturing the same are provided. In one embodiment, a photovoltaic device includes a first photoelectric conversion unit, a first transparent conductive oxide layer and a first microcrystalline silicon layer disposed between and in contact with the photoelectric conversion unit and the transparent conductive oxide layer. In another embodiment, a method of forming a photovoltaic solar cell includes providing a substrate having a first transparent conductive oxide layer disposed thereon, depositing a first microcrystalline silicon layer on the transparent conductive oxide layer, and forming a first photoelectric conversion unit on the microcrystalline silicon layer.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 9, 2008
    Inventors: Shuran Sheng, Yong Kee Chae, Tae Kyung Won, Liwei Li, Soo Young Choi, Yanping Li, Joe Griffith Cruz
  • Publication number: 20080223440
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: April 25, 2008
    Publication date: September 18, 2008
    Inventors: SHURAN SHENG, Yong-Kee Chae, Soo Young Choi
  • Publication number: 20080188033
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Inventors: Soo-Young Choi, Yong-Kee Chae, Shuran Sheng
  • Publication number: 20080173350
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Soo-Young Choi, Yong-Kee Chae, Shuran Sheng
  • Publication number: 20080153280
    Abstract: Methods for sputter depositing a transparent conductive oxide (TCO) layer are provided in the present invention. The transparent conductive oxide layer may be utilized as a back reflector in a photovoltaic device. In one embodiment, the method includes providing a substrate in a processing chamber, forming a first portion of a transparent conductive oxide layer on the substrate by a first sputter deposition step, and forming a second portion of the transparent conductive oxide layer by a second sputter deposition step.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: Yanping Li, Yan Ye, Yong-Kee Chae, Tae Kyung Won, Ankur Kadam, Shuran Sheng, Liwei Li