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US 11,764,315 B2Granted
Solar cell separation with edge coating
AssigneeMaxeon Solar Pte. Ltd.
InventorsJianfang Si, Yafu Lin, Nicholas Eli Berry
Life of this patent
Estimating the term…
Abstract
A groove is cut along a line between adjacent solar cells of a wafer. A coating powder is processed to form a coating layer on the surface of the groove. The solar cells are thereafter physically separated from each other along the groove, with the coating layer serving as an edge coat. The solar cells are electrically connected in series and packaged in a solar module.
Claims20
A method of fabricating solar cells, the method comprising:
- using a first laser beam, cutting a groove on a wafer, the groove located between a first solar cell and a second solar cell, the first and second solar cells being adjacent on the wafer;
- depositing a coating powder in the laser cut groove of the wafer;
- using a second laser beam, melting the coating powder in the laser cut groove of the wafer to form a coating layer on a surface of the groove of the wafer;
- and
- physically separating the first solar cell from the second solar cell along the laser cut groove of the wafer.
2 more elements
A method of fabricating solar cells, the method comprising:
- cutting a groove on a wafer, the groove on the wafer being formed between an existing first solar cell and an existing second solar cell that are already formed on the wafer prior to cutting the groove;
- depositing a coating material in the groove on the wafer;
- melting the coating material in the groove on the wafer to form a coating layer on a surface of the groove on the wafer;
- and
- physically separating the first solar cell from the second solar cell along the groove on the wafer.
2 more elements
Dependencies are inferred from the claim text.