Metallization of conductive wires for solar cells

Patent · Tue May 11 04:00:00 EDT 2021

OSTI ID:1823948

Sewell, Richard Hamilton; Barkhouse, David Aaron Randolph; Harder, Nils-Peter; Rose, Douglas H.

Methods of fabricating a solar cell, and system for electrically coupling solar cells, are described. In an example, the methods for fabricating a solar cell can include placing conductive wires in a wire guide, where conductive wires are placed over a first semiconductor substrate having first doped regions and second doped regions. The method can include aligning the conductive wires over the first and second doped regions, where the wire guide aligns the conductive wires substantially parallel to the first and second doped regions. The method can include bonding the conductive wires to the first and second doped regions. The bonding can include applying a mechanical force to the semiconductor substrate via a roller or bonding head of the wire guide, where the wire guide inhibits lateral movement of the conductive wires during the bonding.

• Research Organization: SunPower Corp., San Jose, CA (United States); Total Marketing Services and Total Energies Nouvelles Activites USA, Puteaux (France)
• Sponsoring Organization: USDOE
• DOE Contract Number: EE0008175
• Assignee: SunPower Corporation (San Jose, CA); Total Marketing Services and Total Energies Nouvelles Activites USA (Puteaux, FR)
• Patent Number(s): 11,004,987
• Application Number: 16/818,935
• OSTI ID: 1823948
• Country of Publication: United States
• Language: English