Underfill Application Example

Underfill Process for the Dispensing of Conductive Adhesives

Underfill applications are the ideal method when it comes to dispensing electrically conductive epoxy. The electrically conductive glue is the electrical connection between the microchip and a substrate. The adhesive is then cured with thermal or UV radiation. Finally, the resulting cavity is filled with an underfill material. This process is called “underfill“.


preeflow® impresses XENON

Consistently high quality and absolutely precise dispensing: Characteristics that are part of everyday work for XENON Automatisierungstechnik GmbH. Thanks to the use of precise dispensing systems, the company is enabled to work on a variety of components and even under vacuum. It goes without saying that XENON wanted to maintain its high quality standards in dispensing as well.

Underfill application - application of conductive adhesive - with preeflow dispensers in fully automatic dosing system from Xenon

Choosing the right dispenser was not difficult for XENON: the required dispensing volume range, the uncomplicated implementation and the precise accuracy of the preeflow dispensers quickly impressed the company. The fully automatic dispensing system offers precision and reliability. And is therefore the perfect partner for XENON.


preeflow Underfill advantages:

  • Precise dispensing
  • Complete control of the underfill process
  • High repeatability
“The spindle dispensing system is controlled directly via the plug´n´dose box and the SPS, so that the volume flow can be easily adjusted to the processing path.”XENON Automatisierungstechnik GmbH
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Our Services

Product tests and validation by preeflow

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Further products

1-component underfill dispenser for electrically conductive glue

1-component dispenser

The 1-component dispenser: Your perfect partner for low to high viscosity dispensing.

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2-component underfill dispenser for electrically conductive adhesive

2-component dispenser

The 2-component dispenser: Simple and precise dispensing of previously unattained small quantities.

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Spraydispenser for underfill material

Spray dispenser

The spray dispenser: Perfect spraying of fluids in the low to high viscosity spray range.

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preeflow® – automated dispensing systems

More than 20 years’ experience in fluid dispensing. ViscoTec distinguishes itself with its comprehensive know-how in dispensing technology. In 2008, this wealth of experience was expanded with the introduction of the preeflow brand. With success: For more than 10 years, preeflow has stood for precise and purely volumetric dispensing of fluids in small and very small quantities. All over the world, a wide variety of industries rely on preeflow dispensing products. Always following our philosophy: Smaller, more precise, economical.