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Abstract #3097

Ink-jet printing enables maskless electroplating mould patterning for rapid MRI coil fabrication

Markus V. Meissner 1 , Nils Spengler 1 , Dario Mager 1 , Jens Hfflin 1 , Peter T. While 1 , and Jan G. Korvink 1

1 Department of Microsystems Engineering - IMTEK, University of Freiburg, Freiburg, BW, Germany

We introduce a novel micro-electroplating process based on ink-jet printed conductive structures, to define high-aspect-ratio MRI field coils. To structure electrically conductive tracks, silver nano particle based ink is printed directly on permanent dry film resist. In this process, molds for electroplating are patterned into thick-film photo-definable resist via backside exposure where our printed structures serve as both the shadow mask for the mold, and the seed layer for the electroplating. Our process is particularly suitable for the rapid manufacture of small planar TxRx, shim and gradient coils.

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