METHOD AND MEANS FOR CONNECTING THIN METAL LAYERS
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United States of America Patent
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Issued Date -
Nov 25, 2010
app pub date -
Nov 5, 2008
filing date -
Nov 7, 2007
priority date (Note) -
Abandoned
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Abstract
A configuration and method for bonding a thin metal layer to two workpieces, e.g. solar cells and film-backed/reinforced small contact strips including: (i) the backing film is removed from the solar cell; (ii) the two films/layers are pressed together; and (iii) the two parts are irradiated from the side of the rear contact of the thin-film solar cell. Preferably two or three laser treatment steps are used for removing the backing film of the thin-film solar cell in an ablation process by means of a short-pulse laser and riveting the first metal layer to the second metal layer by irradiating the same by means of a long-pulse laser.
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