Method for forming structures in a solar cell
US8940572B2 · kind B2 · utility
0Cited by
4References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2010 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Aug 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A conductive contact pattern is formed on a surface of solar cell by forming a thin conductive layer over at least one lower layer of the solar cell, and ablating a majority of the thin conductive layer using a laser beam, thereby leaving behind the conductive contact pattern. The laser has a top-hat profile, enabling precision while scanning and ablating the thin layer across the surface. Heterocontact patterns are also similarly formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.