Methods of manufacturing back surface field and metallized contacts on a solar cell device

A method of manufacturing a solar cell device, comprising:

• selectively disposing a first metal paste in a first pattern on a first surface of a substrate;
• depositing a first dielectric layer over the first metal paste on the first surface of the substrate;
• depositing a second metal paste in a second pattern over the first dielectric layer align with the first metal paste;
• forming a third metal paste in a third pattern on a second dielectric layer disposed on a second surface of the substrate;
• and
• simultaneously heating the first, the second, and the third metal pastes to form a first group of contacts on the first surface of the substrate and a second group of the contacts on the second surface of the substrate, wherein at least a portion of the first and second metal pastes forms the first group of contacts that each extend through the first dielectric layer.

A solar cell device, comprising:

• a first group of conductive contacts that are formed by:
• disposing a first metal paste directly on a first surface of a substrate;
• forming a first dielectric layer over the first metal paste;
• disposing a second metal paste over the first dielectric layer and the first metal paste;
• and
• heating the first metal paste, the second metal paste and the first dielectric layer;
• and
• a conductive layer disposed on the first group of conductive contacts.