Solar cell contact formation using laser ablation
US10211349B2 · kind B2 · utility
2Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | May 12, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/547
Abstract
The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline material layer; and forming conductive contacts in the plurality of contact holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.