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Optica Publishing Group
  • Journal of Display Technology
  • Vol. 10,
  • Issue 1,
  • pp. 19-27
  • (2014)

Flexible TFT Circuit Analyzer Considering Process Variation, Aging, and Bending Effects

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Abstract

This paper presents a SPICE-based simulator, FlexiAnalyzer, for flexible thin-film transistor (TFT) circuits. This simulator performs four types of analysis: yield analysis, aging analysis, performance analysis, and weak spot analysis. This simulator considers three important effects: 1) threshold voltage variation of manufacturing process; 2) threshold voltage shift due to aging effect; and 3) mobility change due to bending effect. Six different OLED pixel drivers designed in 8- $\mu$ m amorphous silicon TFT technology were used in simulation results. The proposed tool provides a good solution for designers to evaluate the performance and yield of flexible TFT circuits.

© 2013 IEEE

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