×

Processing method for cleaning sulfur entities of contact regions

  • US 8,642,138 B2
  • Filed: 06/01/2009
  • Issued: 02/04/2014
  • Est. Priority Date: 06/11/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for forming a thin film photovoltaic device comprising:

  • providing a transparent substrate having a surface;

    forming a first electrode layer over the surface, the first electrode layer having an electrode surface region;

    masking the electrode surface region using a masking layer to define an exposed region and a blocked region;

    forming an absorber layer, including a sulfur entity, over the exposed region;

    removing the masking layer;

    exposing a metal disulfide species having a semiconductor characteristic over the blocked region; and

    subjecting the metal disulfide species to electromagnetic radiation from a laser to substantially remove the metal disulfide species from the previously blocked region.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×