Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/27205
Title: | Design of interfaces with lithographically patterned adhesive pads for gluing at the microscale | Authors: | SAMYN, Pieter Rühe, Jürgen Prucker, Oswald Biesalski, Markus |
Issue Date: | 2018 | Source: | International journal of adhesion and adhesives, 85, p. 88-99 | Abstract: | The creation of small adhesive pads by traditional dispensing methods is technically limited. However, the miniaturisation of micromechanical components requires the parallel development of adhesive pads with sizes in the sub-50 µm range combining good geometrical confinement and mechanical strength. Therefore, a new design of interfaces with adhesive pads of 32–8 µm are presented through local deposition of a liquid adhesive by means of “top-down” or “bottom-up” patterning. Using lithography and photochemical process, the shape of the adhesive pads is first stabilized by partial cross-linking and effective adhesive bonding with a counterface subsequently takes place during full cross-linking. The parameters for photochemical cross-linking of the adhesive pads are optimised and the mechanical performance of the patterned adhesive interfaces is evaluated. For “top-down” patterned adhesive interfaces, the geometrical stabilisation of the adhesive pads requires relatively long cross-linking times consequently resulting in low mechanical strength. For “bottom-up” patterned adhesive interfaces, the formation of adhesive pads is controlled by self-organisation of the adhesive over chemically structured substrates and requires short cross-linking times for geometrical stabilization, leading to higher mechanical strength during adhesive bonding. The fabrication of adhesive pads by a “bottom-up” approach is further discussed in relation to the influences of processing parameters on dewetting of the adhesive. | Notes: | Samyn, P (reprint author), Hasselt Univ, Inst Mat Res IMO IMOMEC, Appl & Analyt Chem, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium. pieter.samyn@uhasselt.be | Keywords: | Adhesion; Patterning; Microscale; Lithography | Document URI: | http://hdl.handle.net/1942/27205 | ISSN: | 0143-7496 | e-ISSN: | 1879-0127 | DOI: | 10.1016/j.ijadhadh.2018.05.021 | ISI #: | 000442974000011 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2019 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1-s2.0-S0143749618301404-main.pdf Restricted Access | Published version | 2.8 MB | Adobe PDF | View/Open Request a copy |
Page view(s)
58
checked on Sep 6, 2022
Download(s)
42
checked on Sep 6, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.