Fabrication process for photovoltaic cell
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United States of America Patent
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Mar 22, 2011
Grant Date -
N/A
app pub date -
Oct 17, 2005
filing date -
Oct 17, 2005
priority date (Note) -
Expired
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Abstract
A photovoltaic strip is physically separated from a semiconductor wafer utilizing physical sawing or other techniques. In accordance with one embodiment, a type of semiconductor wafer is first determined by interrogating the wafer to identify one or more of its optical, thermal, or electrical characteristics. This information regarding substrate type is then communicated to a separation apparatus, which then accomplishes precise physical separation of the substrate into discrete strips. Electrical performance of the strips may be tested prior to their incorporation into an assembled solar cell, where they are coupled to a concentrating element utilizing an elastomer encapsulant.
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