Geckoprinting: assembly of microelectronic devices on unconventional surfaces by transfer printing with isolated gecko setal arrays

Jeong, Jaeyoung; Kim, Juho; Song, Kwangsun; Autumn, Kellar; Lee, Jongho

doi:10.1098/rsif.2014.0627

Cited by 43 publications

(38 citation statements)

References 54 publications

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“…Reprinted with permissions from ref. 72 enhanced transfer printing technique, 55 buckling-actuated transfer printing technique, 82 transfer printing technique using a pedestal stamp, 83 transfer printing technique using a gecko seta array stamp, 84 etc.…”

Section: Gecko-inspired Transfer Printing Techniquementioning

confidence: 99%

“…Reprinted with permissions from ref. 84 The maximum adhesion of the stamp/ink interface assisted with surface chemistry and glues is so strong that it can easily lead to stamp failure instead of interfacial failure. 56 The adhesion strength of the tape/ ink interface is usually several orders stronger than that of the elastomer stamp/ink interface.…”

Section: Gecko-inspired Transfer Printing Techniquementioning

confidence: 99%

See 1 more Smart Citation

Transfer printing techniques for flexible and stretchable inorganic electronics

et al. 2018

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Transfer printing is an emerging deterministic assembly technique for micro-fabrication and nano-fabrication, which enables the heterogeneous integration of classes of materials into desired functional layouts. It creates engineering opportunities in the area of flexible and stretchable inorganic electronics with equal performance to conventional wafer-based devices but the ability to be deformed like a rubber, where prefabricated inorganic semiconductor materials or devices on the donor wafer are required to be transfer-printed onto unconventional flexible substrates. This paper provides a brief review of recent advances on transfer printing techniques for flexible and stretchable inorganic electronics. The basic concept for each transfer printing technique is overviewed. The performances of these transfer printing techniques are summarized and compared followed by the discussions of perspectives and challenges for future developments and applications.

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Section: Gecko-inspired Transfer Printing Techniquementioning

confidence: 99%

Section: Gecko-inspired Transfer Printing Techniquementioning

confidence: 99%

Transfer printing techniques for flexible and stretchable inorganic electronics

et al. 2018

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“…The recent progress in research and development of micropatterned adhesives reveals that such a technology could be an alternative to the existing ones. Pick‐and‐place of objects was demonstrated by several groups: Examples range from handling of fragile objects such as silicon wafers or thin glass sheets, micro‐objects such as silicon platelets, to 3D objects such as curved objects or bags (Figure a–c) …”

Section: Applicationsmentioning

confidence: 99%

Engineering Micropatterned Dry Adhesives: From Contact Theory to Handling Applications

Hensel

Moh

Arzt

2018

Adv Funct Materials

150

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Reversible adhesion is the key functionality to grip, place, and release objects nondestructively. Inspired by nature, micropatterned dry adhesives are promising candidates for this purpose and have attracted the attention of research groups worldwide. Their enhanced adhesion compared to nonpatterned surfaces is frequently demonstrated. An important conclusion is that the contact mechanics involved is at least as important as the surface energy and chemistry. In this paper, the roles of the contact geometry and mechanical properties are reviewed. With a focus on applications, the effects of substrate roughness and of temperature variations, and the long-term performance of micropatterned adhesives are discussed. The paper provides a link between the current, detailed understanding of micropatterned adhesives and emerging applications. The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adfm.201800865.are designated for locomotion over various types of substrates, involving attachment and detachment within milliseconds. [1][2][3][4][5] It is of interest for evolutionary biologists that many foot pads are strikingly similar in morphology: elongated fibrillar structures with aspect ratios ranging from 10 to 80 leading to terminal elements with very different shapes (Figure 1a and Figure 3). [6][7][8][9] For some animals such as the gecko, the adhesive ability of their toe pads can be attributed to van der Waals interactions and, to some extent, to capillary forces. [10][11][12][13][14][15] In the gecko, the fibrillar pads are composed of millions of keratinous hairs (called setae) that branch into even finer terminal elements (spatulae) (Figure 1a). [16,17] Such a hierarchically organized structure results in a soft and compliant surface, which allows easy adaption to roughness at the expense of little strain energy and thus enhances adhesion.More than 1000 reports published in the field of bioinspired dry adhesives over the last two decades reflect a considerable interest in resolving the underlying adhesion mechanisms, e.g., refs. [18][19][20][21]. Application-oriented publications were motivated by a strong interest in creating novel gripper devices and pickand-place systems (Figure 1b), e.g., refs. [18-20] and [22][23][24], climbing robots for terrestrial and extraterrestrial activities, [25][26][27][28][29][30][31][32] new gasket designs in microfluidics, [33,34] or novel solutions for biomedical applications. [35][36][37][38] The present feature article aims to describe the path from fundamental considerations, including a detailed understanding of the relevant contact mechanics, to emerging applications. It is now known that the success of mimicking micropatterned dry adhesives critically depends on the interplay between design parameters, such as dimensions of the structure elements and the terminal tip-shape geometry, and the bulk and surface properties of the materials in contact. How these parameters control the adhesive performance of synthetic...

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“…Both single gecko seta and artificially designed seta can quickly pick up, transport and drop off microparticles, helping in precisely assembling complex micro-patterns/structures (figure 6d). The gecko-inspired manipulators [4,[89][90][91] can potentially open up a new window for micromanipulation of particles which could be used in microelectromechanical systems, biomedical devices, etc.…”

Section: Self-cleaning Without Watermentioning

confidence: 99%

Biomimetic self-cleaning surfaces: synthesis, mechanism and applications

Zhang

Dong

et al. 2016

J. R. Soc. Interface.

103

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With millions of years of natural evolution, organisms have achieved sophisticated structures, patterns or textures with complex, spontaneous multifunctionality. Among all the fascinating characteristics observed in biosystems, self-cleaning ability is regarded as one of the most interesting topics in biomimicry because of its potential applications in various fields such as aerospace, energy conversion and biomedical and environmental protection. Recently, in-depth studies have been carried out on various compelling biostructures including lotus leaves, shark skins, butterfly wings and gecko feet. To understand and mimic their self-cleaning mechanisms in artificial structures, in this article, recent progress in self-cleaning techniques is discussed and summarized. Based on the underlying selfcleaning mechanisms, the methods are classified into two categories: self-cleaning with water and without water. The review gives a succinct account of the detailed mechanisms and biomimetic processes applied to create artificial self-cleaning materials and surfaces, and provides some examples of cutting-edge applications such as anti-reflection, water repellence, self-healing, anti-fogging and micro-manipulators. The prospectives and directions of future development are also briefly proposed.

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Geckoprinting: assembly of microelectronic devices on unconventional surfaces by transfer printing with isolated gecko setal arrays

Cited by 43 publications

References 54 publications

Transfer printing techniques for flexible and stretchable inorganic electronics

Transfer printing techniques for flexible and stretchable inorganic electronics

Engineering Micropatterned Dry Adhesives: From Contact Theory to Handling Applications

Biomimetic self-cleaning surfaces: synthesis, mechanism and applications

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