The
US
group
claims
Heraeus
infringed
a
patent
relating
to
front-side
metallisation
paste
materials
that
form
part
of
DuPont’s
Solamet
solar
product
range.
The
patterns
of
metallic
pastes
applied
to
the
front
and
back
of
cells
are
designed
to
collect
and
transport
the
electricity
produced
by
the
devices,
and
form
a
key
element
in
the
overall
efficiency
of
a
solar-power
system.
DuPont
has
lodged
papers
in
the
US
federal
courts,
claiming
Heraeus
infringed
a
US
patent
“by
manufacturing
solar
cells
and
inducing
its
customers
to
manufacture
solar
cells,
using
Heraeus
H94XX
series…
