Abstract
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.
Original language | English |
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Title of host publication | 2019 IEEE SENSORS |
Pages | 1-3 |
Number of pages | 3 |
DOIs | |
Publication status | Published - 30 Oct 2019 |
Event | 2019 IEEE SENSORS - Montreal, QC, Canada Duration: 27 Oct 2019 → 30 Oct 2019 |
Conference
Conference | 2019 IEEE SENSORS |
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Period | 27/10/19 → 30/10/19 |