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Switchable adhesion principle enables damage-free handling of sensitive devices even in vacuum

10.06.2014

Components with highly sensitive surfaces are used in automotive, semiconductor and display technologies as well as for complex optical lens systems.

During the production process, these parts are transferred in between many process steps. Each pick-up and release with conventional gripping systems involves the risk of either contamination of the surfaces with residues from transportation adhesives, or damaging due to mechanical gripping.


Gecomer© technology at the INM

Source: Uwe Bellhäuser, only free within this press release


Gecobot 2.0

Source: Uwe Bellhäuser, only free within this press release

Suction cup systems diminish residues, but fail in a vacuum or on rough surfaces. Researchers at the Leibniz Institute for New Materials (INM) enhanced the Gecko adhesion principle that adhesion can be switched on and off in vacuum.

With the “gecobot 2.0”, the researchers from the INM will be presenting their new Gecomer® technology at the International Innovation Conference and Expo TechConnect World from June 16 to 17, Washington DC, USA, at Stand 301in the German Area.

"Artificially produced microscopic pillars, so-called gecko structures, adhere to various items. By bending these pillars, the adhesion can be switched off. Thus, items can be lifted and quickly released," explains Karsten Moh from the Program Division Functional Microstructures.

"This technique is particularly interesting in vacuum, as suction cups fail here," says Moh. Parts, for example, can be moved within a reactor chamber for vapor phase deposition (CVD or PVD). With the currently developed adhesion system, objects with smooth surfaces can be lifted and released, having a weight of approximately 100 grams per square centimeter (ca.0.03 lbs per square inch)."

In our test runs, the system has proved successful even after 20,000 runs", says the upscaling expert Moh.

The development group is now working on the gripping of more complicated objects without leaving residues using this adhesion principle. "Then, we could also move glass lenses or automobile bumpers without damaging them in the production process," says Moh.

From June 16 to 17, the researchers of the INM present this and further results at Stand 301 in the German Area. This includes new developments in the field of display techniques, printed electronics, corrosion protection, antifouling and antifriction.

Your expert at the Stand:
Joachim Blau
Dr. Karsten Moh

Your expert at the INM:
Prof. Eduard Arzt
INM – Leibniz Institute for New Materials
Head Functional Microstructures
Phone: +49681-9300-500
eduard.arzt@inm-gmbh.de

INM conducts research and development to create new materials – for today, tomorrow and beyond. Chemists, physicists, biologists, materials scientists and engineers team up to focus on these essential questions: Which material properties are new, how can they be investigated and how can they be tailored for industrial applications in the future? Four research thrusts determine the current developments at INM: New materials for energy application, new concepts for medical surfaces, new surface materials for tribological applications and nano safety and nano bio. Research at INM is performed in three fields: Nanocomposite Technology, Interface Materials, and Bio Interfaces.
INM – Leibniz Institute for New Materials, situated in Saarbruecken, is an internationally leading centre for materials research. It is an institute of the Leibniz Association and has about 195 employees.

Weitere Informationen:

http://www.inm-gmbh.de/en

Dr. Carola Jung | idw - Informationsdienst Wissenschaft

Further reports about: Division INM Interface Leibniz-Institut Technology adhesion reactor smooth structures surfaces vacuum

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