Photovoltaic solar cell and method of manufacturing photovoltaic solar cell
US11004991B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Feb 23, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Apr 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
Provided is a method of manufacturing a photovoltaic solar cell, including: forming a first conductivity type region that contains a first conductivity dopant, on one surface of a semiconductor substrate and an opposite surface that is opposite to the one surface; removing the first conductivity type region formed on the opposite surface of the semiconductor substrate by performing dry etching; and forming a second conductivity type region that contains a second conductivity type dopant, on the opposite surface of the semiconductor substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.