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A threshold voltage variation cancellation technique for analogue peripheral circuits of a display array using Poly-Si TFTs
Physics Dept., Aristotle University of Thessaloniki, Greece.
Physics Dept., Aristotle University of Thessaloniki, Greece.
Physics Dept., Aristotle University of Thessaloniki, Greece.
Physics Dept., Aristotle University of Thessaloniki, Greece.
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2006 (English)In: 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS, 2006, 3305-3308 p.Conference paper, Published paper (Refereed)
Abstract [en]

Polysilicon thin-film technology has become of great interest due to the demand for large area electronic devices. Display applications, memories and optical copier are among the fields where polysilicon thin-film transistors (poly-Si TFTs) are most commonly used. However the design of analogue blocks, by using Poly-Si TFTs, with constant specifications is very difficult because of the large variation of the threshold voltage of the poly-Si TFT across the wafer and the kink effect makes. In this paper we propose a new circuit that can sense the voltage difference between two TFTs. This voltage can be used in order to design an improved current mirror with cancellation of threshold voltage variation.

Place, publisher, year, edition, pages
2006. 3305-3308 p.
Series
IEEE International Symposium on Circuits and Systems, ISSN 0271-4302
Keyword [en]
Analog circuits, Electronic equipment, Polysilicon, Silicon wafers, Threshold voltage, Kink effect, Peripheral circuits, Polysilicon thin-film transistors (poly-Si TFT), Voltage difference, Thin film transistors
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-51000DOI: 10.1109/ISCAS.2006.1693332ISI: 000245413503172OAI: oai:DiVA.org:kth-51000DiVA: diva2:463157
Conference
IEEE International Symposium on Circuits and Systems. Kos, GREECE. MAY 21-24, 2006
Note
QC 20111209Available from: 2011-12-08 Created: 2011-12-08 Last updated: 2011-12-09Bibliographically approved

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