In the micro- and nanofabrication group we develop enabling techniques for the patterning of functional surfaces, and use these processes in different research and application fields. Because most of the processes are centered around the nanostructuring of polymers, these activities are strongly linked to the new “Institut für Nanotechnische Kunststoff-Anwendungen (INKA)” at the University of Applied Sciences Nordwestschweiz FHNW (founded in 2004). This is particularly important for techniques with the potential for industrial production, such as nanolithography, nanoreplication, and surface functionalization.

Nanoreplication Processes (H. Schift, K. Vogelsang)
Nanoimprint Lithography / Hot Embossing Lithography. Injection molding and roll embossing (H. Schift with partners in FHNW) Applied Projects (H. Schift)  Nanoporous chips for investigation of bio-membrane transport (MEMNA) Surface patterning of polymers and antiadhesive coatings (NanoArgovia)
Micro- and Nanografting of Polymers (C. Padeste, S. Neuhaus)  Surface nanostructuring and functionalization Bulk grafting of microstructures Functional Protein Patterns (C. Padeste) High resolution protein arrays Patterns of VEGF receptor proteins

Facilities:

• Replication lab with Jenoptik HEX03 for aligned hot embossing
• Several etching facilities in the LMN cleanroom
• Access to the injection moulding facilities of the FHNW (INKA)
• Chemical laboratories for surface coatings and functionalization

Competencies for Partnership in Proprietary and Publicly Funded Research Projects

• Thermal nanoimprint lithography up to 100 mm wafer size with experience in process development, polymer rheology and applications
• Stamp manufacturing using e-beam lithography
• Antiadhesive coatings for imprint and injection molding using silane chemistry
• Fabrication of micro- and nanostructures for microfluidics, optics and surface topography 

Our Research Partners:

• Joint projects with partners in the EU-FP6 Integrated Project “Napa” Emerging Nanopatterning Methods (2003-2008)
• Applied projects with industrial partners in the framework of KTI and NCCR NanoArgovia (Geberit, Hightec, Leister)
• L. Tiefenauer (PSI-BIO)

Contact:

Dr. Helmut Schift (Group Leader): helmut.schiftpsi.ch
nanoreplication processes, nanoimprint lithograhy
Dr. Celestino Padeste: celestino.padestepsi.ch
micro- and nanografting of polymer, protein patterns