The Electronic Circuit Composition and Structure of Warp and Woof for a Novel Hybrid Opto-Electronic Integrated Systems with Textile Structures

2003 ◽  
Vol 769 ◽  
Author(s):  
Shigekazu Kuniyoshi ◽  
Kuniaki Tanaka

AbstractThe new integrated circuit concept that forms electronic equipment by the textile structure using the flexible fiber that has equipped the field effect transistor, the light emitting diode, the wiring pattern, etc. is proposed [1]. In this report, the structure of the filamentous body as a basic structure of the cloth with various electronic functions was examined. In order to simplify circuit composition, an active element such as field effect transistors, the electrode pattern for wiring, and the pads for connection are formed on the warp, and the electrode pattern for wiring and the pad for connection are formed on the woof. The circuit composition and a concrete structure of the warp and the woof are discussed.

2004 ◽  
Vol 814 ◽  
Author(s):  
Shigekazu Kuniyoshi ◽  
Kuniaki Tanaka

AbstractThe new integrated circuit concept that forms electronic equipment by the textile structure using the flexible fiber that has equipped the field effect transistor, the light emitting diode, the wiring pattern, etc. was proposed [1,2]. In this report, the structure of the filamentous body as a basic structure of the kumihimo with various electronic functions was examined. There are many kinds of one in the kumihimo by the number and how to unite the plaited thread used. Although such a highly efficient kumihimo-structure electronic integrated circuit can be realized using kumihimo with much thread, it becomes that much complicated. In order to simplify an argument here, square-type kumihimo that uses eight plaited threads is employed, and a basic logical circuit composition and the element arrangement on plaited thread are examined. Eight plaited-threads are divided into two groups that have four threads respectively, and they exist in the plane that intersected perpendicularly mutually. However, kumihimo is a 1-dimensional system fundamentally, it can be extended in the length direction if necessary, and it is considered that a quite complicated function is also realizable for a circuit with few input and output. Here, plaited thread that belongs to one group for convenience will be called warp and the other group will be called woof. The circuit composition and a concrete structure of threads for kumihimo are discussed.


Energies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 187 ◽  
Author(s):  
Kamil Bargieł ◽  
Damian Bisewski ◽  
Janusz Zarębski

The paper deals with the problem of modelling and analyzing the dynamic properties of a Junction Field Effect Transistor (JFET) made of silicon carbide. An examination of the usefulness of the built-in JFET Simulation Program with Integrated Circuit Emphasis (SPICE) model was performed. A modified model of silicon carbide JFET was proposed to increase modelling accuracy. An evaluation of the accuracy of the modified model was performed by comparison of the measured and calculated capacitance–voltage characteristics as well as the switching characteristics of JFETs.


2005 ◽  
Vol 98 (7) ◽  
pp. 074506 ◽  
Author(s):  
Takahito Oyamada ◽  
Hiroyuki Uchiuzou ◽  
Seiji Akiyama ◽  
Yoshiaki Oku ◽  
Noriyuki Shimoji ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
pp. 2 ◽  
Author(s):  
Ahmed Gaddour ◽  
Wael Dghais ◽  
Belgacem Hamdi ◽  
Mounir Ben Ali

PH measurements are widely used in agriculture, biomedical engineering, the food industry, environmental studies, etc. Several healthcare and biomedical research studies have reported that all aqueous samples have their pH tested at some point in their lifecycle for evaluation of the diagnosis of diseases or susceptibility, wound healing, cellular internalization, etc. The ion-sensitive field effect transistor (ISFET) is capable of pH measurements. Such use of the ISFET has become popular, as it allows sensing, preprocessing, and computational circuitry to be encapsulated on a single chip, enabling miniaturization and portability. However, the extracted data from the sensor have been affected by the variation of the temperature. This paper presents a new integrated circuit that can enhance the immunity of ion-sensitive field effect transistors (ISFET) against the temperature. To achieve this purpose, the considered ISFET macro model is analyzed and validated with experimental data. Moreover, we investigate the temperature dependency on the voltage-current (I-V). Accordingly, an improved conditioning circuit is designed in order to reduce the temperature sensitivity on the measured pH values of the ISFET sensor. The numerical validation results show that the developed solution accurately compensates the temperature variation on the measured pH values at low power consumption.


Micromachines ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 39
Author(s):  
Abhiroop Bhattacharjee ◽  
Thanh Chien Nguyen ◽  
Vivek Pachauri ◽  
Sven Ingebrandt ◽  
Xuan Thang Vu

Impedance sensing with silicon nanowire field-effect transistors (SiNW-FETs) shows considerable potential for label-free detection of biomolecules. With this technique, it might be possible to overcome the Debye-screening limitation, a major problem of the classical potentiometric readout. We employed an electronic circuit model in Simulation Program with Integrated Circuit Emphasis (SPICE) for SiNW-FETs to perform impedimetric measurements through SPICE simulations and quantitatively evaluate influences of various device parameters to the transfer function of the devices. Furthermore, we investigated how biomolecule binding to the surface of SiNW-FETs is influencing the impedance spectra. Based on mathematical analysis and simulation results, we proposed methods that could improve the impedimetric readout of SiNW-FET biosensors and make it more explicable.


2008 ◽  
Vol 9 (3) ◽  
pp. 323-327 ◽  
Author(s):  
Bin Wei ◽  
Jun Wang ◽  
Chong Li ◽  
Aoi Shimada ◽  
Musubu Ichikawa ◽  
...  

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