Patent ID: 8043886

Claim:
A process for fabricating a contact grid for a photovoltaic cell, the process comprising: providing a photovoltaic cell having an antireflective coating disposed on a sun facing side, the photovoltaic cell comprising a silicon substrate having a p-n junction; soft stamping a UV sensitive material in a negative pattern of a contact grid onto the antireflective coating, the contact grid including bus bars used to contact a front surface of the substrate; exposing the UV sensitive photoresist and/or polymer to ultraviolet radiation to cure the UV sensitive photoresist and/or polymer; etching openings in the antireflective coating that define the contact grid; stripping the UV sensitive photoresist and/or polymer; depositing a conductive metal into the openings defined by the antireflective coating; and annealing the conductive metal to form an annealed metal securing contact at a low resistance to an n-doped silicon surface of the substrate.