EANS-News: PVA TePla AG / Silicon Crystals for the Solar Industry: Significant Cost Reduction Through Multipulling

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New Products

Wettenberg (euro adhoc) - (Wettenberg, February 18, 2013) - PVA TePla
AG - a manufacturer of solar silicon and semiconductor silicon
crystallization systems as well as vacuum and high-temperature
systems - has achieved a major technological enhancement of its
crystal-growing systems for manufacturing silicon crystals. The
multipulling method is a technology with which several silicon
crystals can be manufactured from a single process cycle using a
recharging unit. With this method, customers in the highly
price-driven solar industry can significantly reduce their production
costs for crystals from which solar wafers are produced in a further
process step.

For multipulling, PVA TePla offers two different recharging units for
different types and sizes of polysilicon raw material: a mobile Si
charger - the Mobile Recharging System (MRS) - and a stationary
feeder - the Fixed Charging System (FCS). Existing systems on the
market can be fitted with these accessories, and the multipulling
process with at least two crystals per cycle can be introduced along
with customer-specific training. Key aspects of this technology were
tested with the involvement of project partners in the photovoltaics
industry as part of the Solar Valley research project "Optimization
of the Czochralski method for manufacturing monocrystalline silicon
with regard to lower costs and thinner wafers (CzSil)." The
recharging unit is characterized by a compact design, high process
accuracy and user-friendliness with an intuitive user interface.

Compared with alternative crystal-growing systems, such as the
continuous Czochralski method, multipulling is less complex, thus
delivering much greater process stability as well as significantly
improved economic efficiency in large-scale production for the solar
industry.

Further inquiry note:
Dr. Gert Fisahn
Telefon: +49(0)641 68690-400
E-Mail: gert.fisahn@pvatepla.com

end of announcement euro adhoc
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company: PVA TePla AG
Im Westpark 10-12
D-35435 Wettenberg
phone: +49(0)641 68690-0
FAX: +49(0)641 68690-800
mail: ir@pvatepla.com
WWW: http://www.pvatepla.com
sector: Misc. Industrials
ISIN: DE0007461006
indexes: CDAX
stockmarkets: free trade: Hannover, Berlin, München, Hamburg, Düsseldorf,
Stuttgart, regulated dealing/prime standard: Frankfurt
language: English