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"Micro patterning"

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Emerging Patterning Strategies for Intrinsically Stretchable Conductors: Materials, Architectures, and Device-level Performance
Donghyeon Seo, Seongsik Jeong, Hae-Jin Kim
J. Korean Soc. Precis. Eng. 2025;42(10):789-816.
Published online October 1, 2025
DOI: https://doi.org/10.7736/JKSPE.D.25.00003

Intrinsically stretchable electronics enable seamless integration with dynamic biological tissues and curved surfaces, making them vital for next-generation wearables, biointerfaces, and intelligent robotics. Yet, precise, high-resolution patterning of stretchable electrodes and circuits remains challenging, limiting practical applications. Traditional lithography offers excellent resolution but is hindered by thermal and chemical incompatibilities with soft substrates. Consequently, alternative approaches such as soft lithography, laser-based patterning, printing methods, and electrospray deposition have gained importance. Soft lithography provides an economical, low-temperature option suitable for delicate materials like liquid metals. Laser-based techniques deliver high resolution and design flexibility but require careful parameter tuning for specific substrates. Mask-free printing methods, including direct ink writing and inkjet printing, enable versatile patterning of complex geometries, while electrospray deposition supports precise, non-contact patterning on stretchable surfaces. Collectively, these techniques advance the fabrication of robust stretchable displays, wireless antennas, and bioelectronic interfaces for accurate physiological monitoring. Despite progress, challenges persist, particularly in achieving large-area uniformity, multilayer stability, and sustainable processing. Addressing these issues demands interdisciplinary collaboration across materials science, fluid dynamics, interfacial engineering, and digital manufacturing. This review highlights recent progress and remaining hurdles, offering guidance for future research in stretchable electronics.

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Fabrication of Micro Pattern Through Analysis of Contact Area of the Jet-Circulating Electrodeposition
Haan Kim, Chong Nam Chu
J. Korean Soc. Precis. Eng. 2019;36(6):523-529.
Published online June 1, 2019
DOI: https://doi.org/10.7736/KSPE.2019.36.6.523
In the Jet-Circulating electrodeposition, selective electrodeposition is done using the local circulation of the electrolyte. The Scale of fabricated patterns using the Jet-Circulating electrodeposition is dependent on the contact area between the nozzle and the workpiece surface through the electrolyte circulation. The shape of the electrolyte meniscus determines the contact area. The factors that influence the shape of the meniscus include the electrolyte jetting parameter and the characteristics of the workpiece surface. The jet distances are analyzed based on the shape of the electrolyte meniscus and contact area which is dependent on the jetting pressure and the suction pressure. In order to investigate the effect of contact area on the workpiece surface, the surface is treated using Hexamethyldisilazane spin coating, self-assembled monolayer formation, and Neverwet ® spray coating. The contact angle and the contact area based on the surface treatment methods are analyzed. The width of the copper patterns fabricated through Jet-Circulating electrodeposition are compared. The copper pattern width of the self-assembled monolayer formation surface had reduction of 30% in comparison to the untreated surface.
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Recent Research Trend of Micro Hot-Embossing
Seung-Hyun Lee, Jeongdai Jo, Kwang-Young Kim, Young-Man Choi
J. Korean Soc. Precis. Eng. 2018;35(11):1027-1034.
Published online November 1, 2018
DOI: https://doi.org/10.7736/KSPE.2018.35.11.1027
Micro hot-embossing is a powerful tool in the agile additive manufacturing industry. Its applications include optical components, micro-fluidic devices, MEMS, hydrophobic/hydrophilic surfaces, and energy harvesting devices. To overcome a drawback of low-process speed, the R2R process has been innovated, with novel embossing mechanisms and process optimization. Also, new materials beyond thermoplastic polymers have been applied to develop new devices, or enhance device performance. This review surveys recent progress in micro hot-embossing technology, in terms of new mold fabrication process, process innovation, and various applications.

Citations

Citations to this article as recorded by  Crossref logo
  • Manufacturing Process for Highly Stable Thermal Imprinting Transparent Electrode Using IPL Sintering
    Yunseok Jang
    Journal of the Korean Society for Precision Engineering.2025; 42(1): 75.     CrossRef
  • Finding Ways to Deform Fine Patterns Fabricated by UV Curable Resin
    Woo Young Kim, Su Hyun Choi, Seonjun Kim, Young Tae Cho
    Journal of the Korean Society for Precision Engineering.2020; 37(4): 291.     CrossRef
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