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The
SMARTSHIELD
is made of a sophisticated, high nickel content metal alloy with an extremely
high magnetic permeability which enables it to shield your smartcard from
low frequency magnetic fields. This material is used in fighter aircraft
to shield their avionics from the electromagnetic pulse (EMP) emitted by
nuclear weapons. This material must be hyperannealed in a hydrogen
atmosphere at over 1100°C to fully develop these special properties.
The material and the required processing make this shield both difficult
and expensive to manufacture.
The
thickness of the shield material was selected to provide the necessary
structural rigidity which just so happens to be much greater than the thickness
required to shield against the magnetic fields emitted by smartcard readers.
This makes the SMARTSHIELD
completely overdesigned for its intended purpose. There are cheaper
materials that can approximate the performance of this material,
but none that can match it. When faced with the choice of using some
of these lesser materials, Cord Technologies elected to manufacture the
highest quality smartcard shield possible. Given that these cards
may hold sensitive personal, financial, health and welfare information
and possibly information pertaining to matters of national security, we
felt that nothing but the best would suffice.
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