charges radiate half of the stored energy as an
electromagnetic wave. Therefore metal to metal
ones radiate a very large impulse for a short
time. Such an emission normally causes no effect
on the robotic system but occasionally it acci-
dentally is coincident with latch-
ing an instruction or a measured
value into the processor. Then, the
processor tries to execute a mean-
ingless instruction or tries to drive
the robot out of its correct path.
This ends up looking like either an
unintelligible error message and
a halted process tool or a product
which is destroyed by a bogus
movement of the robotic arm.
The effect is rare so that it might
occur once in a few days and such
an effect is difficult to track down
without sophisticated high speed
electronics to identify the culprit.
To deal with these issues, it
is necessary to do routine static
audits with an electrostatic field
meter looking for large electric
fields which arise from static charge. In some
applications, it is practical to remove one or two
products from the line with a robot and move
them into a Faraday Cup to directly measure the
charge on the product. Also, using a very fast
A worker wearing ESD
gloves uses tweezers to
assemble a microchip on
a printed circuit board.
And it gets even better:
MAS-100® – Experience the
reliability that you are used to:
All MAS-100® Systems have been validated to ISO 14698 by a third party using
the lockable heipha® ICRplus Settle Plates: they all show identical physical efficiency,
which makes results easy to compare from one instrument to the other.
EMD Millipore and the M logo are trademarks of Merck KGaA, Darmstadt, Germany.
MAS-100® is a registered trademark of MBV, Staefa, S witzerland.
© 2015 Merck KGaA, Darmstadt, Germany. All rights reserved.
EMD Millipore Corp. is a subsidiary of Merck KGaA, Darmstadt, Germany
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