Three-dimensional SiCN ceramic microstructures via nano-stereolithography of inorganic polymer photoresists

We report a newly synthesized inorganic polymer photoresist with a high ceramic yield by the functionalization of polyvinyl-silazane (KiON VL20) with 2-isocyanatoethyl methacrylate via linkage or insertion reaction routes. The chemistry of the synthesis and the pyrolytic conversion as well as the mechanical evaluation were investigated by using various analytical instruments. We show for the first time that this photosensitive resin is a novel precursor for the fabrication of complex 3D SiCN ceramic microstructures with a 210 nm resolution via a two-photon absorbed crosslinking process and subsequent pyrolysis at 600 degrees C under a nitrogen atmosphere. Moreover, the dimensional deformation during pyrolysis was significantly reduced by adding silica nanoparticles as a filler. In particular, the ceramic microstructures containing 40 wt % silica nanoparticles exhibited a relatively isotropic shrinkage owing to its sliding free from the substrate during pyrolysis.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2006-06
Language
ENG
Keywords

LITHOGRAPHIC MICROFABRICATION; 2-PHOTON POLYMERIZATION; FABRICATION; PHOTOPOLYMERIZATION; NANOSTRUCTURES; COMPOSITES; PRECURSORS; MEMS

Citation

ADVANCED FUNCTIONAL MATERIALS, v.16, no.9, pp.1235 - 1241

ISSN
1616-301X
DOI
10.1002/adfm.200600009
URI
http://hdl.handle.net/10203/2350
Appears in Collection
NE-Journal Papers(저널논문)
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