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Proceedings Paper

Development and characterization of a microsnap-fit for optical assembly
Author(s): J. Köhler; Y. Kutlu; S. I. Ksouri; C. Esen; A. Ostendorf
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Paper Abstract

Snap-fits are classified as interlocking connections and commonly used to assemble two or more components in a fast and cost efficient way. The mechanism is simply based on mechanical flexibility. Therefore, the applications cover a broad field ranging from automotive engineering to mobile phone design. By scaling and transferring the snap-fit mechanism into micrometer scale, advantages can also be utilized to assemble complex microsystems. In this paper, a microsnap-fit based on a cantilever design is developed and investigated by means of optical techniques only. Two-photon polymerization as micro-stereolithography is utilized to manufacture the microcomponents and the mechanical flexibility is analyzed by optical forces in a holographic optical tweezer setup. The locking mechanism is theoretically and experimentally characterized, e.g, the flexibility of the polymer with regard to the design is studied. It can be demonstrated that assembling as well as disassembling of microcomponents is achievable. These findings provide fast and easy assembling of complex microsystems in the fields of microrobotics, -sensors, and -mechanics.

Paper Details

Date Published: 27 February 2017
PDF: 8 pages
Proc. SPIE 10120, Complex Light and Optical Forces XI, 101200J (27 February 2017); doi: 10.1117/12.2254951
Show Author Affiliations
J. Köhler, Ruhr-Univ. Bochum (Germany)
Y. Kutlu, Ruhr-Univ. Bochum (Germany)
S. I. Ksouri, Ruhr-Univ. Bochum (Germany)
C. Esen, Ruhr-Univ. Bochum (Germany)
A. Ostendorf, Ruhr-Univ. Bochum (Germany)

Published in SPIE Proceedings Vol. 10120:
Complex Light and Optical Forces XI
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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