Solar cell and method of fabricating the same
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United States of America Patent
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Nov 10, 2009
Grant Date -
Oct 25, 2007
app pub date -
Mar 27, 2007
filing date -
Mar 19, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method of fabricating a solar cell forms a large number of grooves on a first main surface of a p-type silicon single crystal substrate sliced out from a silicon single crystal ingot as described below. First an edge portion of a groove-carving blade is projected out from a flat substrate feeding surface of a working table by a predetermined height. The p-type silicon single crystal substrate is moved along the substrate feeding surface towards the rotating groove-carving blade while keeping a close contact of the first main surface thereof with the substrate feeding surface. Electrodes are then formed on the inner side face of thus-carved grooves only on one side in the width-wise direction thereof.
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