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Simulation of 3D inclined/rotated UV lithography and its application to microneedles

 
: Liu, S.; Roeder, G.; Aygun, G.; Motzek, K.; Evanschitzky, P.; Erdmann, A.

:

Optik 123 (2012), Nr.10, S.928-931
ISSN: 0030-4026
Englisch
Zeitschriftenaufsatz
Fraunhofer IISB ()

Abstract
A 3D model is set up to simulate the exposure process of inclined/rotated UV lithography for negative SU-8 resists. The formation of inclined resist pillars and microstructures with truncated cone shapes is simulated based on a 3D exposure model in combination with a post exposure bake model for chemically amplified resists and the Mack development model. As one of the interesting applications employing this promising lithography technique for MEMS fabrication, a solid microneedle for drug delivery is simulated.

: http://publica.fraunhofer.de/dokumente/N-189466.html