EANS-News: PVA TePla AG / MultiCrystallizer: New System Development for the Solar Industry

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Marketing

Wettenberg (euro adhoc) - (Wettenberg, June 16, 2011) - PVA TePla AG,
Wettenberg, a manufacturer of silicon crystallization systems as well
as vacuum and high-temperature systems, is now marketing a further
development of the MultiCrystallizer crystal-growing system,
generation G5, for higher loads. The product is named
MultiCrystallizer VGF732Si HC.

The MultiCrystallizer is a vacuum furnace for directional
solidification (based on the vertical gradient freeze process) of
multicrystalline silicon ingots for the production of wafers for the
photovoltaic industry.

The new HC version, generation G5, uses higher crucibles (G5: 480 -
520 mm crucible height; old standard: 420 mm) to enable greater loads
of silicon up to a maximum weight of 560 kg.

The furnace has a unique temperature control system with a heating
zone that, thanks to its outstanding level of temperature
homogeneity, ensures columnar solidification even on the ingot
exterior. This creates perfect conditions for optimal crystallization
of higher ingots and means that the same quality can be achieved as
with the previous crucible standard of 420 mm. The cell efficiencies
achieved are an average of 0.4 percentage points above the industry
standard, while the ingot yield is 75% (usable brick material as a
proportion of total ingot material).

The higher load also means that optimal brick heights of 250 mm can
be achieved in a 480 mm crucible. This brick height makes
wafer-cutting as efficient as possible and means that the process is
extremely cost-effective for customers.

Not only that, the MultiCrystallizer VGF732Si HC is especially suited
to the mono-like process due to its independently controllable
heating and cooling zones. A stable crystallization front throughout
the crystallization process enables faults to be avoided and ensures
that the mono-like structure remains properly intact.

You can obtain further information from:
Roger Pingel
PVA TePla AG
Phone: +49(0)641/68690-151
Roger.pingel@pvatepla.com
www.pvatepla.com

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: regulated dealing/prime standard: Frankfurt, free trade: Berlin,
Hamburg, Stuttgart, Düsseldorf, Hannover, München
language: English