Gupta, S., Heidari, H. , Vilouras, A. , Lorenzelli, L. and Dahiya, R. (2016) Device modelling for bendable piezoelectric FET-based touch sensing system. IEEE Transactions on Circuits and Systems I: Regular Papers, 63(12), pp. 2200-2208. (doi: 10.1109/TCSI.2016.2615108)
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129332.pdf - Accepted Version 2MB |
Abstract
Flexible electronics is rapidly evolving towards devices and circuits to enable numerous new applications. The high-performance, in terms of response speed, uniformity and reliability, remains a sticking point. The potential solutions for high-performance related challenges bring us back to the timetested silicon based electronics. However, the changes in the response of silicon based devices due to bending related stresses is a concern, especially because there are no suitable models to predict this behavior. This also makes the circuit design a difficult task. This paper reports advances in this direction, through our research on bendable Piezoelectric Oxide Semiconductor Field Effect Transistor (POSFET) based touch sensors. The analytical model of POSFET, complimented with Verilog-A model, is presented to describe the device behavior under normal force in planar and stressed conditions. Further, dynamic readout circuit compensation of POSFET devices have been analyzed and compared with similar arrangement to reduce the piezoresistive effect under tensile and compressive stresses. This approach introduces a first step towards the systematic modeling of stress induced changes in device response. This systematic study will help realize high-performance bendable microsystems with integrated sensors and readout circuitry on ultra-thin chips (UTCs) needed in various applications, in particular, the electronic skin (e-skin).
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Vilouras, Anastasios and Heidari, Professor Hadi and Dahiya, Professor Ravinder and Gupta, Shoubhik |
Authors: | Gupta, S., Heidari, H., Vilouras, A., Lorenzelli, L., and Dahiya, R. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | IEEE Transactions on Circuits and Systems I: Regular Papers |
Publisher: | IEEE |
ISSN: | 1549-8328 |
ISSN (Online): | 1558-0806 |
Published Online: | 16 November 2016 |
Copyright Holders: | Copyright © 2016 IEEE |
First Published: | First published in IEEE Transactions on Circuits and Systems I: Regular Papers 63(12):2200-2208 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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