Design and analysis of Cu circuit for stretchable electronic circuits using finite element analysis

Kim, Kyung-Yeol; Lee, Choong‐Jae; Jung, Seung‐Boo

doi:10.1016/j.mee.2021.111510

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…Because P1.2 is a pattern with rounded corners with a radius of 0.5 mm, the stress was expected to be dispersed by the rounded corners, thus resulting in better stretchability than that of P1.1. [31,32] Based on the first simulation analysis results, the second group of patterns, excluding the complex and rigid designs (such as P1.3 and P1.4), was designed (Figure 2a). The P2.1 pattern exhibited the best stretchability in the first simulation.…”

Section: Resultsmentioning

confidence: 99%

Stretchable and Flexible Snake Skin Patterned Electrodes for Wearable Electronics Inspired by Kirigami Structure

Kang

Kim

et al. 2023

Adv Materials Inter

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Herein, snake‐skin‐patterned electrodes, with high versatility and excellent biocompatibility, are developed by combining the Kirigami structure and biomimicry. The snake‐skin electrode has excellent stretchability owing to the integration of the Kirigami structure and patterning. The snake skin patterns are optimized through finite element analysis (FEA) simulations to determine the most stretchable pattern structure. Based on the FEA results, we fabricated the optimal pattern on a polyurethane (PU) substrate by sputtering the AgPdCu alloy target. Even at high strains of 30% and 50%, the electrode exhibits much better stretchability compared with the electrode without the snake skin pattern. The best stretchable electrode exhibits a resistance change (ΔR) of less than 1.5 when it is severely stretched at up to 50% strain. Additionally, the dynamic stretching fatigue test, reveals that it exhibits stable conductivity, thus proving the effectiveness of using snake‐skin pattern for stretchable electrodes. The bending, rolling, folding and twisting tests confirm that the electrode has outstanding flexibility, too. A wearable temperature sensor with a snake‐skin‐patterned electrode exhibits stable and highly sensitive temperature sensing properties. In addition, light emitting diodes connected to the stretchable electrode exhibits stable brightness despite severe deformation of the electrodes.

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Section: Resultsmentioning

confidence: 99%

Stretchable and Flexible Snake Skin Patterned Electrodes for Wearable Electronics Inspired by Kirigami Structure

Kang

Kim

et al. 2023

Adv Materials Inter

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“…Among the materials used as conductive ink in SEC applications are graphene [16], silver [17], and copper [18,19]. Both thermoplastic-urethane (TPU) substrate and copper conductive ink utilized within this research is adapted from Kim et al, [20]. The material properties are tabulated in Table 1.…”

Section: Materials Propertiesmentioning

confidence: 99%

Equivalent Plastic-Strain Analysis of Copper Stretchable Electronic Circuit Using Finite Element Analysis

Azli

Zakaria²,

Ramli³

et al. 2023

ARASET

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Nowadays, demand for the stretchable electronic circuit (SEC) innovative technology is promising in various industries such as biology, advanced robotics, and defense due to their ability to endure enormous amounts of energy and have a wide range of tensile capabilities. However, reliable data regarding mechanical characteristics are still sparse due to the percolation nature of the material, which requires its fillers to be connected to one another at all times in order to conduct electricity. To address these issues, the present work opted a finite element analysis (FEA) model that will depict the behaviour of plastic strain on a variety of stretchy conductive ink designs. SEC ink models were created using CAD modeling software and loaded into ANSYS software for finite element analysis (FEA). Behaviors of six different SEC patterns under various longitudinal and lateral stretching conditions were analyzed using the equivalent plastic strain level possessed. Another perspective of the study was to evaluate the impact of expanding the width and thickness of the ink pattern toward the development of the equivalent plastic strain. The result shows that the U-shape SEC pattern had the lowest equivalent plastic strain, with εp= 0.033611 for the longitudinal load and εp= 0.014648 for the lateral load.

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“…For example, environmental factors such as dust, moisture, and vibration may accelerate component failure. In addition, chemicals and radiation in the environment may also cause damage to electronic components [3]. Therefore, reasonable use and maintenance of components are also key to extending their lifespan.…”

Section: Introductionmentioning

confidence: 99%

A life prediction method for electronic components based on dual-channel multimodal convolutional networks

Gu,

Zhang,

Yong

et al. 2024

International Conference on Mechatronic Engineering and Artificial Intelligence (MEAI 2023)

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Due to the multiple factors that affect the lifespan of electronic components, it is difficult to accurately predict the lifespan of electronic components by directly analyzing a single factor. Therefore, a study on the lifespan prediction method of electronic components based on dual channel multimodal convolutional networks is proposed. Based on the failure mechanism of electronic components, degradation models of electronic component electrical characteristic parameters were constructed from the perspectives of resistance and capacitance. Two parallel convolutional channels are used to extract continuous samples with uniform sampling time intervals. The degradation characteristics of electronic component electrical characteristic parameters at different time points extracted by the two parallel convolutional channels are fused, so that the final extracted electronic component features have temporal information. Multimodal fitting is performed on the electronic component features at the output of the convolutional network to obtain the final life prediction result. In the test results, the prediction error of the design method is stable within 6.0%, the time cost is stable within 21.0s, and fast convergence can be achieved.

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Design and analysis of Cu circuit for stretchable electronic circuits using finite element analysis

Cited by 4 publications

References 29 publications

Stretchable and Flexible Snake Skin Patterned Electrodes for Wearable Electronics Inspired by Kirigami Structure

Stretchable and Flexible Snake Skin Patterned Electrodes for Wearable Electronics Inspired by Kirigami Structure

Equivalent Plastic-Strain Analysis of Copper Stretchable Electronic Circuit Using Finite Element Analysis

A life prediction method for electronic components based on dual-channel multimodal convolutional networks

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