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centrotherm presents groundbreaking products and processes for the manufacturing of high-efficiency solar cells at the SNEC PV in Shanghai - Seite 2

properties. Furthermore, the centrotherm c.PLASMA PECVD system provides
improved process flexibility for further dielectric layers (SiONx, SiOx,
etc.) in both mono and multi solar processing.

The process is offered as an upgrade package for the centrotherm PECVD
system c.PLASMA as well as in new systems.

Low-pressure boron diffusion for bifacial n-type solar cells
N-type solar cells are increasingly getting into the focus of solar cell
manufacturers as they have a higher efficiency potential and show no light
induced degradation.
In the framework of the BiSoN alliance with the ISC Constance, centrotherm
is offering process and system packages for the mass production of this
cell concept since last year. Now, centrotherm launches an additional new
low-pressure process for highly efficient boron doping with its R&D partner
in Constance.

The formation of a well passivated boron emitter is achieved with this
process, which is crucial for many n-type cell structures. In addition,
solar cell manufacturers achieve significant cost reductions while
maintaining high quality production. On the one hand by the reduction of
boron consumption by up to 75% and on the other hand by eliminating the
boron silicate glass (BSG) removal.

The process is offered as an upgrade package for the centrotherm diffusion
furnace c.DIFF as well as in new systems.

"With our product and process innovations we offer our customers solutions
to their manifold and very different requirements on their path to highly
efficient solar cell concepts," notes Dr. Josef Haase, Senior Vice
President Technology Photovoltaics, before adding: "It is essential for the
customer, that centrotherm systems deployed in their production can be
upgraded to the latest state-of-the-art with process and hardware packages.
That offers the customer flexibility for the future along with the
performance of our systems and processes.

centrotherm at SNEC PV Power Expo - April 28 - 30, 2015: Hall E3/Booth 360

About centrotherm photovoltaics AG

centrotherm has been developing and realizing innovative thermal solutions
for over 50 years. As a leading and globally operating technology group, we
offer production solutions for the photovoltaic, semiconductor and
microelectronic industries.

The continuous further development of our successful solutions in thermal
processing and coating, such as for manufacturing crystalline solar cells