Ensights

Science that is transforming lives and enabling the future

Filtration Fundamentals II: Membrane DeWetting

All Posts

Filtration Fundamentals II: Membrane DeWetting

Dewetting and non-dewetting are not common terms used every day, yet are vital to the functionality of liquid filters.

  • Wetting – the process of filling a membrane’s pores with a liquid
  • Dewetting – the phenomenon where a filter membrane’s pores accumulate air over time, blocking liquid flow
  • Non-dewetting – a membrane surface that has been modified to maintain wettability over time, even when confronted by outgassing chemistries

The terminology aside, the value of a non-dewetting membrane can’t be understated in terms of operational efficiency and effectiveness. A filter that dewets in a particular semiconductor unit process can contribute to an increase in defectivity or a reduction in productivity due to flow loss.

Watch as Dr. Aiwen Wu, senior applications engineer, demonstrates membrane properties designed to address outgassing chemistries. 

 

Related: The Lithographer's Toolkit

Related Posts

Pump it Up: Photochemical Delivery that Meets the Challenges of 3D Architectures

Photochemicals are playing an increasingly important role in bringing next generation devices to reality. While semiconductor manufacturing has always needed a pure, contamination-free environment, the requirements are tightening even further.

DRAM: Device Fabrication

DRAM architecture has remained virtually unchanged for the past decade, with the dimensions shrinking proportionally with each successive device node. This linear path, however, is reaching its limits for nodes below 20 nanometers (nm) including 1x, 1y, 1z, 1a, and 1b. A major change will be needed soon if DRAM is to keep up with advances in logic.

Cars and Chips: The Acceleration of Electronic Systems

The rapid increase of semiconductors in cars enables significant safety, connectivity, mobility, and sustainability improvements. The standards to measure reliability under the tough conditions a car presents are based on how vehicles operate today. Conventional vehicles are generally idle 95% of the time. As a result, the expected lifetime of the electronics systems is well beyond the lifetime of the vehicle itself.