Electromechanical modeling of stretchable interconnects

Dong, Ziming; Duan, Baoxing; Cao, Zhen; Yang, Yintang

doi:10.1007/s10825-016-0946-7

Cited by 9 publications

(6 citation statements)

References 15 publications

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“…At present, more research has been done on the mechanical properties; the authors have done much work on the electronic performance of a single stretchable interconnect. In [16], the single interconnect's parasitic parameter and electronic performance in the frequency domain were discussed; however, the results of time-domain analysis are more vivid and intuitive [17]. In the paper, we mainly discussed its electronic performance in the time domain.…”

Section: Single Stretchable Interconnectmentioning

confidence: 99%

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A stretchable flexible electronic platform for mechanical and electrical collaborative design

Dong

Duan

et al. 2018

Sci. China Inf. Sci.

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With the extensive application of stretchable flexible electronic circuits to wearable equipment and biomedicine, research on the electrical properties of such circuits has become a hot topic. In this paper, a flexible electronic design platform is established for the first time, realizing co-simulation of the mechanical and electronic aspects. The main functions of this platform include the design of stretchable interconnects, flexible devices, stretchable flexible electronic circuits, and stretchable flexible circuit-layout wiring. The following conclusions can be obtained: (1) With increased applied strain, the inductance of a stretchable interconnect will increase, while the delay and crosstalk will become non-negligible. (2) Although the performance of flexible passive devices does not change after transfer printing, the gate capacitor of the flexible MOS at the cutoff area does decrease. (3) Taking a flexible comparator as an example, the function and electrical performance of a flexible circuit are verified. (4) Taking a flexible amplifier circuit as an example, the flexible interconnection layout and wiring are simulated and verified.

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Section: Single Stretchable Interconnectmentioning

confidence: 99%

“…In the frequency domain, the S 31 parameter represents the ratio between the transmitted signal and the near-end-crosstalk signal [16]. Eq.…”

Section: Coupled Stretchable Interconnectsmentioning

confidence: 99%

A stretchable flexible electronic platform for mechanical and electrical collaborative design

Dong

Duan

et al. 2018

Sci. China Inf. Sci.

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“…In addition, radio frequency (RF) and microwave circuit technologies bear their own specific design challenges. Beside the common mechanical requirements like good adhesion of the metal structures to the substrate and sufficiently high structural precision on the scale of the guided wavelengths, additional effects like the frequency-dependent properties of complex-valued dielectric permittivity and electrical conductivity may give rise to increasing dispersion, losses due to dissipation [11], mode conversion, or (parasitic) radiation [12]. Variations of the electrical lengths may cause impedance mismatch or detuning of frequencyselective devices.…”

Section: Introductionmentioning

confidence: 99%

Electrical lengths and phase constants of stretchable coplanar transmission lines at GHz frequencies

Pikushina,

Centeno,

Stehr

et al. 2024

Flex. Print. Electron.

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Elastic, bendable and stretchable electronics establish a new and promising area of multi-physics engineering for a variety of applications, e.g. on wearables or in complex-shaped machine parts. While the area of metamorphic electronics has been investigated comprehensively, the behaviour at radio frequencies (RF), especially in the GHz range, is much less well studied. The mechanical deformation of the soft substrates, for instance, due to stretching, changes the geometrical dimensions and the electrical properties of RF transmission lines. This effect could be desirable in some cases, e.g., for smart devices with shape-dependent transmission or radiation characteristics, or undesirable in other cases, e.g., in feed and distribution networks due to the variable electrical lengths and thus phase varivariations. This contribution describes the results of a systematic study of the broadband RF properties of coplanar transmission lines on Ecoflex® substrates, based on numerical simulations and experimental data. Two types of stretchable transmission line structures were studied: Meander- and ring-segmented lines. Modeling and simulation were performed combining a 2D circuit simulation software with electromagnetic full-wave simulations. The experimental part of the work included the fabrication of metamorphic substrates metallized with thin copper layers and systematic measurements of the electrical lengths and phase constants of coplanar waveguides in the frequency range from 1 to 5 GHz based on vector network analysis for different stretching levels. In addition, towards potential RF applications, stretchable RF capacitors were designed and tested in terms of their variable capacitance values.

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“…Ye Zhihong [1] et al constructed the crosstalk model of multi-conductor transmission lines with different heights by using time-domain transmission line equation, and obtained the crosstalk response of the end load of the transmission line. Ziming Dong [2] et al conducted a simulation study on the electrical characteristics of horseshoe-shaped interconnection wires after deformation. An Gang [3] et al proposed a new algorithm to study the electrical properties of serpentine interconnect structures under different strains.…”

Section: Introductionmentioning

confidence: 99%

Design and Layout Optimization of the Interconnection Structure of Stretchable Circuits

Wang¹,

Pan²,

Gong³

et al. 2019

Proceedings of the 2019 International Conference on Wireless Communication, Network and Multimedia Engineering (WCNME 2019)

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Aiming at the crosstalk problem caused by unreasonable structure design and layout between interconnect wires of stretchable integrated circuits, a plan based on response surface method was proposed to optimize the structure and layout of stretchable circuits. Extensible universal interconnection structure of flexible circuit was taken as the research object and the parameters of conductor structure and layout were taken as design factors. The experimental design was carried out by using the center complex method and sample data was obtained by central composite design, and response values were obtained by ANSYS Electronic Desktop. Then second-order polynomial response surface model between crosstalk and influence factors was fitted. The optimization model was established with the minimum value of the sum of near crosstalk and far crosstalk as the optimization objective. A reference for the optimization and layout of the stretchable universal interconnection structure was provided.

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Electromechanical modeling of stretchable interconnects

Cited by 9 publications

References 15 publications

A stretchable flexible electronic platform for mechanical and electrical collaborative design

A stretchable flexible electronic platform for mechanical and electrical collaborative design

Electrical lengths and phase constants of stretchable coplanar transmission lines at GHz frequencies

Design and Layout Optimization of the Interconnection Structure of Stretchable Circuits

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