The Influence of Laser Modification on a Composite Substrate and the Resistance of Thin Layers Created Using the PVD Process

Korzeniewska, Ewa; Tomczyk, Mariusz; Walczak, Maria

doi:10.3390/s20071920

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…The different techniques used to make conductive fibres are sputtering, chemical polymerization, electrodeposition, and dip coating. The first two mentioned techniques, i.e., sputtering and chemical polymerization, are both classified as Physical Vapor Deposition (PVD) processes [ 23 , 24 ]. PVD is a coating process carried out in a vacuum in which thin films are deposited by the condensation of a vaporized form of the desired film material onto the substrate.…”

Section: Textile Technologiesmentioning

confidence: 99%

Smart Textiles and Sensorized Garments for Physiological Monitoring: A Review of Available Solutions and Techniques

Angelucci

Cavicchioli

Cintorrino

et al. 2021

Sensors

105

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Several wearable devices for physiological and activity monitoring are found on the market, but most of them only allow spot measurements. However, the continuous detection of physiological parameters without any constriction in time or space would be useful in several fields such as healthcare, fitness, and work. This can be achieved with the application of textile technologies for sensorized garments, where the sensors are completely embedded in the fabric. The complete integration of sensors in the fabric leads to several manufacturing techniques that allow dealing with both the technological challenges entailed by the physiological parameters under investigation, and the basic requirements of a garment such as perspiration, washability, and comfort. This review is intended to provide a detailed description of the textile technologies in terms of materials and manufacturing processes employed in the production of sensorized fabrics. The focus is pointed at the technical challenges and the advanced solutions introduced with respect to conventional sensors for recording different physiological parameters, and some interesting textile implementations for the acquisition of biopotentials, respiratory parameters, temperature and sweat are proposed. In the last section, an overview of the main garments on the market is depicted, also exploring some relevant projects under development.

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Section: Textile Technologiesmentioning

confidence: 99%

Smart Textiles and Sensorized Garments for Physiological Monitoring: A Review of Available Solutions and Techniques

Angelucci

Cavicchioli

Cintorrino

et al. 2021

Sensors

105

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“…The criteria for assessing the obtained elements were the following: the accuracy of mapping the dimensions of the bar, the continuity of the structure (the bar cannot be broken), and the smoothness of the cut edges. The optimization of the parameters of the laser cutting process was performed using the experiment planning method [23,24]. The following parameters were set as the input parameters: laser beam power (2-10 W), pulse repetition frequency (35-270 kHz), beam speed (200-2000 mm/s), and pulse duration (15-220 ns).…”

Section: Optimalization Of the Mask-cutting Processmentioning

confidence: 99%

“…For these parameters, in order to cut holes in the foil of thickness of 35 µ m and 30 µ m, the scanning should be repeated 50 times. For a foil of thickness of 120 The optimization of the parameters of the laser cutting process was performed using the experiment planning method [23,24]. The following parameters were set as the input parameters: laser beam power (2-10 W), pulse repetition frequency (35-270 kHz), beam speed (200-2000 mm/s), and pulse duration (15-220 ns).…”

Section: Optimalization Of the Mask-cutting Processmentioning

confidence: 99%

Optimization of the Ablative Laser Cutting of Shadow Mask for Organic FET Electrode Fabrication

2020

Self Cite

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This article presents an ablative method of cutting masks from ultra-thin metal foils using nanosecond laser pulses. As a source of laser radiation, a pulsed fiber laser with a wavelength of 1062 nm with the duration of pulses from 15 to 220 nanoseconds (ns), was used in the research. The masks were made of stainless-steel foil with thicknesses of 30 µm, 35 µm, and 120 µm. Channels of different lengths from 50 to 300 µm were tested. The possibilities and limitations of the presented method are described. The optimization of the cutting process parameters was performed using the experiment planning techniques. A static, determined complete two-level plan (SP/DC 24) was used. On the basis of the analysis of the test structures, we designed and produced precise shading masks used in the process of organic field effect transistor (OFET) electrode evaporation. The ablative method proved suitable to produce masks with canals of minimum lengths of 70 µm. It offers facile, fast, and economically viable shadow mask fabrication for organic electronics applications, which moreover might enable fast prototyping and circuit design.

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“…Traditional LM circuit preparation has been challenging to develop further. Laser technology has been widely used in various fields, for example: textile electronic [ 39 ], composite materials [ 40 ], biomedical science [ 41 , 42 , 43 ], and so on. To the best of our knowledge, there have been few reports on the fabrication of ultra-micro LM electronic devices by laser engraving [ 44 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

Laser-Engraved Liquid Metal Circuit for Wearable Electronics

Liang

Song

2022

Bioengineering

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Conventional patterning methods for producing liquid metal (LM) electronic circuits, such as the template method, use chemical etching, which requires long cycle times, high costs, and multiple-step operations. In this study, a novel and reliable laser engraving micro-fabrication technology was introduced, which was used to fabricate personalized patterns of LM electronic circuits. First, by digitizing the pattern, a laser printing technology was used to burn a polyethylene (PE) film, where a polydimethylsiloxane (PDMS) or paper substrate was used to produce grooves. Then, the grooves were filled with LM and the PE film was removed; finally, the metal was packaged with PDMS film. The experimental results showed that the prepared LM could fabricate precise patterned electronic circuits, such as golden serpentine curves and Peano curves. The minimum width and height of the LM circuit were 253 μm and 200 μm, respectively, whereas the printed LM circuit on paper reached a minimum height of 26 μm. This LM flexible circuit could also be adapted to various sensor devices and was successfully applied to heart rate detection. Laser engraving micro-processing technologies could be used to customize various high-resolution LM circuit patterns in a short time, and have broad prospects in the manufacture of flexible electronic equipment.

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The Influence of Laser Modification on a Composite Substrate and the Resistance of Thin Layers Created Using the PVD Process

Cited by 5 publications

References 37 publications

Smart Textiles and Sensorized Garments for Physiological Monitoring: A Review of Available Solutions and Techniques

Smart Textiles and Sensorized Garments for Physiological Monitoring: A Review of Available Solutions and Techniques

Optimization of the Ablative Laser Cutting of Shadow Mask for Organic FET Electrode Fabrication

Laser-Engraved Liquid Metal Circuit for Wearable Electronics

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