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Rapidly tunable and highly reversible bio-inspired dry adhesion for transfer printing in air and a vacuum

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Abstract

Tunable and reversible dry adhesion has attracted much attention in academia and industry due to its wide applications ranging from releasable joints to stamps for transfer printing. Here, a simple yet robust magnetically actuated, aphid-inspired design of an elastomeric surface that provides rapidly tunable and highly reversible adhesion strength is reported. The magnetically actuated adhesive features open reservoirs filled with magnetic particles and encapsulated by a thin surface membrane, which can be deformed in a controlled manner via the magnetic field, thus, to tune the adhesion. The combination of the rate dependent effect and magnetic actuation of the thin surface membrane offers continuously tunable adhesion with a great switchability and a quick response. Experimental and theoretical studies reveal the underlying physics and provide design guidelines to optimize geometries for the broad control of adhesion. Demonstrations of this concept in stamps for transfer printing of silicon wafers in air and in a vacuum with a selective and programmable mode illustrate the capabilities for deterministic assembly and the potential in the semiconductor industry.

Graphical abstract: Rapidly tunable and highly reversible bio-inspired dry adhesion for transfer printing in air and a vacuum

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Publication details

The article was received on 01 Oct 2018, accepted on 03 Nov 2018 and first published on 05 Nov 2018


Article type: Paper
DOI: 10.1039/C8SM01996G
Citation: Soft Matter, 2018, Advance Article
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    Rapidly tunable and highly reversible bio-inspired dry adhesion for transfer printing in air and a vacuum

    C. Linghu, C. Wang, N. Cen, J. Wu, Z. Lai and J. Song, Soft Matter, 2018, Advance Article , DOI: 10.1039/C8SM01996G

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