| Unitech Seeks Long-Term Supply for Silicon Wafers |
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| Written by Philip Buonpastore | |||
| Thursday, 27 December 2007 09:35 | |||
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Taiwan - Unitech PCB, which is diversifying into the photovoltaic industry, is seeking a long-term contract for silicon wafers to sustain supply in an industry-wide material shortage. According to Digitimes magazine, Unitech has authorized chairman Chang Pen-tsao to sign a contract for silicon wafer supply. The company said it is holding talks with suppliers and no specific terms have been determined. The PCB manufacturer is investing over $30.74 million to build a solar cell plant in Taiwan's northeastern county of Yilan, and the company expects the plant to start volume production in mid 2008. The company reportedly has already secured a six to 12 month short-term supply of solar grade silicon wafers.
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Research continues on improving printed frontside silver conductor line efficiency.A simple Internet search will reveal the photovoltaic industry is working hard on higher aspect ratio frontside conductor grids as a route to greater solar cell efficiencies. This is because the conductors, typically screen-printed on a cell’s frontside, block sunlight from reaching the energy converting strata below, and the narrower they are, the less shadow they cast. However, as it is essential they...
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