Patents Assigned to OB Realty, LLC.
  • Damage free laser patterning of transparent layers for forming doped regions on a solar cell substrate
    Patent number: 9768343
    Abstract: Laser patterning methods utilize a laser absorbent hard mask in combination with wet etching to form patterned solar cell doped regions to improve cell efficiency by avoiding laser ablation of an underlying semiconductor substrate associated with ablation of an overlying transparent passivation layer.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: September 19, 2017
    Assignee: OB Realty, LLC.
    Inventors: Virendra V. Rana, Pawan Kapur, Sean M. Seutter, Mehrdad M. Moslehi