The aim of this article is to illustrate the need for reverse engineering in order to manufacture parts for Micro- and Nano- electromechanical systems, specially in the medical field. Afterwards, an overview of the newest optical devices for production metrology and quality control of Mems & Nems is provided. Finally, a new concept for a modular optical-system able to digitalise micro-parts is presented. The system is proposed for scanning measurement of topographies and digitalising of complete geometries. The system is able to generate a parametric 3D database that can be used for tooling or design modifications. The resulting data can also be used to generate a colour map comparison report. This paper ends with conclusions and an overview of the future in metrology for Mems & Nems.
Reduction in the size of produced parts, increases the difficulty for precise manufacturing observation-processes and it makes manufacturing control cycles even more complex. Among all the production steps for micro-systems, assembly seems to be specially affected with this manufacturing handicap. Usual sensors used for the macro-world have to be modified or redesigned in order to address its use for the micro-world. This document presents the integration of a white light interferometer into a flexible fibre-scope used already for process monitoring purposes and which is mounted into a gripping-tool. The goal is to achieve a linear measurement between a gripping-tool and a target-part during the assembly process of hybrid micro systems.
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