Solar cell manufacture
US4198262A · kind A · utility
5Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1979 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Mar 29, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
A method for manufacturing solar cells from a silicon wafer having a p-n junction therein and front and back contacts thereon, the improvement comprising washing said wafer with a buffered hydrofluoric acid solution having a pH of from about 3.5 to about 6.5 and containing from about 2 to about 10 weight percent hydrofluoric acid based on the total weight of the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.