Dr. Helmut Schift Profile

Dr. Helmut Schift

Head polymer nanotechnology group at Paul Scherrer Institut

SPIE Involvement:

Conference Program Committee | Author

Area of Expertise:

nanoimprint lithography , mold fabrication , roll embossing , 3D lithography , injection molding

Websites:

Company Website | Personal Website

Profile Summary

Helmut Schift is head of the Polymer Nanotechnology Group in the Laboratory for Micro- and Nanotechnology at the Paul Scherrer Institut. He received his diploma in Electrical Engineering from the University of Karlsruhe, and performed his PhD studies at the Institute of Microtechnology Mainz. After his graduation in 1994, he joined PSI as a research staff member. His current research interests include innovative 3-D stamp fabrication and nanomolding processes, including roll embossing and injection molding.

Publications (14)

SPIE Journal Paper | January 6, 2018

Benchmarking surface selective vacuum ultraviolet and thermal postprocessing of thermoplastics for ultrasmooth 3-D-printed micro-optics

Kirchner, Robert , Chidambaram, Nachiappan , Schift, Helmut

OE Vol. 57 Issue 04

KEYWORDS: Vacuum ultraviolet, Polymethylmethacrylate, Polymers, Surface roughness, Surface finishing, Micro optics, Lenses, Glasses, Two photon polymerization, Polymerization

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PROCEEDINGS ARTICLE | January 2, 2018

Surface smoothening of the inherent roughness of micro-lenses fabricated with 2-photon lithography

Proc. SPIE. 10456, Nanophotonics Australasia 2017

KEYWORDS: Lithography, Electron beam lithography, Microlens array, Polymethylmethacrylate, Two photon polymerization, Lenses, Polymers, Surface roughness, Microlens, Surface finishing

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PROCEEDINGS ARTICLE | September 28, 2017

Depth-profiling of vertical material contrast after VUV exposure for contact-free polishing of 3D polymer micro-optics

Proc. SPIE. 10446, 33rd European Mask and Lithography Conference

KEYWORDS: Lithography, Polymethylmethacrylate, Polymers, Ultraviolet radiation, Micro optics, Microlens, Surface finishing, 3D microstructuring

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PROCEEDINGS ARTICLE | March 21, 2017

Selective surface smoothening of 3D micro-optical elements

Proc. SPIE. 10144, Emerging Patterning Technologies

KEYWORDS: Lithography, Prisms, Polymethylmethacrylate, Lenses, Polymers, Glasses, Ultraviolet radiation, Surface roughness, Optical testing, Scanning electron microscopy, Microlens, Vacuum ultraviolet, Surface finishing, Absorption

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PROCEEDINGS ARTICLE | February 24, 2017

How post-processing by selective thermal reflow can reduce the roughness of 3D lithography in micro-optical lenses

Proc. SPIE. 10095, Laser 3D Manufacturing IV

KEYWORDS: Lithography, Electron beam lithography, Microlens array, Polymethylmethacrylate, Two photon polymerization, Lenses, Polymers, Glasses, Manufacturing, Surface roughness, Micro optics, Microlens, Nanoimprint lithography, Vacuum ultraviolet, Surface finishing

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PROCEEDINGS ARTICLE | March 21, 2016

mr-PosEBR: a novel positive tone resist for high resolution electron beam lithography and 3D surface patterning

Proc. SPIE. 9779, Advances in Patterning Materials and Processes XXXIII

KEYWORDS: Electron beams, Dry etching, Polymers, Scanning electron microscopy, Reactive ion etching, Plasma

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SPIE Journal Paper | July 18, 2014

Nanoimprint lithography process chains for the fabrication of micro- and nanodevices

Schift, Helmut , Urwyler, Prabitha , Kristiansen, Per Magnus , Gobrecht, Jens

JM3 Vol. 13 Issue 03

KEYWORDS: Nanoimprint lithography, Polymers, Nanostructures, Cesium, Manufacturing, Silicon, Optical lithography, Polymer thin films, Thin films, Metals

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PROCEEDINGS ARTICLE | March 28, 2014

Nanoimprint lithography process chains for the fabrication of micro- and nanodevices

Proc. SPIE. 9049, Alternative Lithographic Technologies VI

KEYWORDS: Nanostructures, Polymers, Metals, Silicon, Coating, Manufacturing, Signal processing, Nanoimprint lithography, Polymer thin films, Glass molding

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PROCEEDINGS ARTICLE | April 4, 2012

Micro- and nanostructured polymer substrates for biomedical applications

Proc. SPIE. 8339, Bioinspiration, Biomimetics, and Bioreplication 2012

KEYWORDS: Nanostructures, Tissues, Polymers, Silicon, Oxygen, Bone, Scanning electron microscopy, Plasma treatment, Polymer thin films, Plasma

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SPIE Journal Paper | January 1, 2006

Sustained polymer membranes fabricated by nanoimprint lithography

Schift, Helmut , Bellini, Sandro , Pieles, Uwe , Gobrecht, Jens

JM3 Vol. 5 Issue 01

KEYWORDS: Polymers, Nanoimprint lithography, Nanolithography, Etching, Photomicroscopy, Microfluidics, Silicon, Scanning electron microscopy, Nanotechnology, Applied sciences

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PROCEEDINGS ARTICLE | September 2, 1998

Fabrication of replicated high-precision insert elements for micro-optical bench arrangements

Proc. SPIE. 3513, Microelectronic Structures and MEMS for Optical Processing IV

KEYWORDS: Optical fibers, Optical components, Lithography, Diffractive optical elements, Polymers, Metals, Silicon, Optical benches, Optical alignment, Fiber couplers

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PROCEEDINGS ARTICLE | May 22, 1998

Miniaturized focusing fan-out elements: design, fabrication, and characterization

Proc. SPIE. 3490, Optics in Computing '98

KEYWORDS: Staring arrays, Optical components, Diffraction, Microlens array, Fluctuations and noise, Photoresist materials, Microlens, Optical alignment, Multiphoton lithography, Diffraction gratings

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PROCEEDINGS ARTICLE | September 2, 1997

Replicated diffractive optical lens components for laser-diode to fiber coupling in optical bench arrangements

Proc. SPIE. 3226, Microelectronic Structures and MEMS for Optical Processing III

KEYWORDS: Optical fibers, Optical components, Optical fabrication equipment, Diffractive optical elements, Laser applications, Single mode fibers, Fiber lasers, Optical benches, Optical alignment, X-ray technology

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