Modeling of an Internal Stress and Strain Distribution of an Inverted Staggered Thin-Film Transistor Based on Two-Dimensional Mass-Spring-Damper Structure

Abstract

Equipped with a two-dimensional topological structure, a group of masses, springs and dampers can be demonstrated to model the internal dynamics of a thin-film transistor (TFT). In this paper, the two-dimensional Mass-Spring-Damper (MSD) representation of an inverted staggered TFT is proposed to explore the TFT's internal stress/strain distributions, and the stress-induced effects on TFT's electrical characteristics. The 2D MSD model is composed of a finite but massive number of interconnected cellular units. The parameters, such as mass, stiffness, and damping ratios, of each cellular unit are approximated from constitutive equations of the composite materials, while the electrical properties of the inverted staggered TFT are characterized by utilizing an electro-mechanical coupling relation derived from the quantum mechanics. TFTs are often used in biomedical sensors/transducers attached to human skins, and, for the purpose of simulation and validation, the boundary conditions on the interface between the TFT and the human skin were modeled as a spatially distributed sinusoidal excitation with a frequency of 50 Hz, assuming the TFT thickness is more than tens of microns. The fidelity of the 2D MSD structure in the modeling of an inverted staggered TFT is verified by comparing its simulated total displacement field with that of a finite element analysis (FEA) model. The advantages of the MSD model include a dramatic reduction in memory use by up to 60% and faster computation times that are up to 80% lower. More importantly, the MSD model is better suited than FEA to many problems in accurate tissue modeling for medical applications, for which FEA is becoming a bottleneck. This work develops a novel modeling approach, which can be extended to other types of flexible thin film transistors.

[Retracted] Development Mode of Recreation Belt around the City: Ecological Authenticity or Fashion Creativity?

“…e fidelity of 2D MSD structure in inverted interleaved TFT modeling is verified, and a new modeling method is developed, which can be extended to other types of flexible thin-film transistors [13]. "Local complex" reflects the spiritual and cultural characteristics of the Chinese people, is also the unconscious inheritance of the collective memory of the Chinese people, and deeply interprets the tension of "cultural intimacy" between tourists and society.…”

“…Leisure agriculture and rural tourism are the “trinity” of agricultural tourism culture, the synchronous improvement of production and living ecology, and the deep integration of rural primary, secondary, and tertiary industries. The fidelity of 2D MSD structure in inverted interleaved TFT modeling is verified, and a new modeling method is developed, which can be extended to other types of flexible thin-film transistors [ 13 ]. “Local complex” reflects the spiritual and cultural characteristics of the Chinese people, is also the unconscious inheritance of the collective memory of the Chinese people, and deeply interprets the tension of “cultural intimacy” between tourists and society.…”

Application of Big Data in Legal Protection of Minors’ Sexual Autonomy

“…Yang et al pointed out that the MSD model is more suitable for many problems of accurate tissue modeling in medical applications than FEA, and FEA is becoming a bottleneck. is work develops a new modeling method that can be extended to other types of flexible thin film transistors [20].…”

Research on the Development and Integration of Inclusive Finance in Agricultural Economy Based on the Artificial Intelligence Machine Learning Algorithm

“…More importantly, the MSD model is more suitable than FEA for many problems of accurate tissue modeling in medical applications and FEA is becoming a bottleneck. This work develops a new modeling method, which can be extended to other types of flexible thin film transistors [12].…”