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11 September 1998 Design and simulation of advanced surface micromachined micromirror devices for telescope adaptive optics applictions
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Abstract
This paper describes the design, fabrication, modeling, surface characterization, and simulation of advanced surface micromachined micromirror devices that are optimized for adaptive optics applications. Design considerations and fabrication capabilities are presented. Simulation of adaptive optics performance of unique Flexure-Beam and Axial-Rotation Micromirror devices is performed for many common aberrations. These devices are fabricated in the state-of-the-art four-level planarized polysilicon process available at Sandia National Laboratories known as the Sandia Ultra-planar Multi-level planarized MEMS Technology. This enabling process permits the development of micromirror devices with near-ideal characteristics that have previously been unrealizable in standard three-layer polysilicon processes. This paper describes such characteristics as elevated address electrodes, array wiring techniques, planarized mirror surfaces using chemical mechanical polishing, unique post-process metallization, and the best active surface area to date.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Adrian Michalicek, Natalie Clark, John H. Comtois, and Heather K. Schriner "Design and simulation of advanced surface micromachined micromirror devices for telescope adaptive optics applictions", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); https://doi.org/10.1117/12.321697
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