Method for forming structures in a solar cell
US9478694B2 · kind B2 · utility
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4References
18Claims
0Family size
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Inventor
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Dec 22, 2034 |
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.