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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Zauner, Markus
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document
Vacuum-assisted selective adhesive imprinting for heterogeneous system integration of MOEMS devices
Abstract
<p>In this paper we propose the selective adhesive bonding technique using contact imprinting from thin adhesive layers spin-coated on the sacrificial polyethylene foils. The imprinting is assisted with vacuum release of the polymer foil to reduce the pull-off adhesive force and prevent sticking, posing less constraints on the required lifting force. We apply this method in assembly of a highly integrated optical particle counter confronted with several strict assembly requirements, such as selective bonding with small feature size (<200 μm), minimal adhesive thicknesses (<15μm), precise out-of plane tolerances, low adhesive squeeze-out and hermetically sealed packaging. A successful selective adhesive bonding with ratio of vacuum tool area to adhesive contact area of 1:20 was demonstrated.</p>