Vakuum Production and Dispensing0 pages

SCHEUGENPFLUG AG
METERING AND DISPENSING TECHNOLOGY
Vacuum Production and Dispensing

04 l 15

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Demanding requirements –

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The requirements for electronic components are rapidly increasing in many aspects. For safety-relevant components or components with a wide scope of functions, vacuum dispensing is the process of
choice to achieve the required component reliability. For components with undercuts or small cavities
that must be filled, or for the ever smaller components resulting from miniaturisation, vacuum dispensing is increasingly the only option.
Many electronic components today have a wider
range of functions and must fulfil stringent reliability requirements. Once installed, they are
usually difficult to replace. Often they are not
even meant to be replaceable and are designed
to perform their function throughout the product’s entire lifespan.

And with advancing component miniaturisation,
these issues are becoming even more important.
Thus, to achieve the desired quality, it is necessary to carry out the entire dispensing process
in an evacuated environment, i.e. in a vacuum,
and precisely position the workpiece while it is
processed.

At the same time, components are becoming
ever more complex. Their shape and textures
are not, of course, optimised for ease of bonding or sealing, because other criteria are more
significant. As a result, the dispensing material
may form gaps around edges or in corners of the
workpiece. Coiled products, such as transformers, motors or ignition coils inherently contain
very small gaps, which must be filled without
bubbles.

Another consideration are the growing requirements for electronic components. They ultimately lead to increasing demands on dispensing, too.
Superior dispensing quality to maximise highvoltage and insulation resistivity, for example, is
therefore a must, and that requires an uninterrupted, stable vacuum. A production process
completely free of air bubbles and with effective
protection against moisture is today’s state of
the art, and process reliability here is equal to
that of atmospheric-pressure dispensing.

(The page references refer to the general catalogue.)