Front contact solar cell manufacture using metal paste metallization

Abstract

Embodiments of the invention contemplate the formation of a high efficiency solar cell using novel methods to form metal contact structures of the solar cell device. In one embodiment, a solar cell device includes a substrate comprising a doped semiconductor material, a surface formed on the substrate having a second doped semiconductor layer having a conductivity type opposite to the first doped semiconductor material, a dielectric layer disposed on the surface of the substrate, a metal contact structure formed in the dielectric layer with a first predetermined cross sectional area, and a metal line formed on the metal contact structure with a second predetermined cross sectional area, wherein the second predetermined cross sectional area is larger than the first predetermined cross sectional area.

Dependencies are inferred from the claim text.