A flexible TFT circuit yield optimizer considering process variation, aging, and bending effects

Wen En Wei; Hung Yi Li; Cheng Yu Han; James Chien Mo Li; Jian Jang Huang; I. Chun Cheng; Chien-Nan Liu; Yung Hui Yeh

doi:10.1109/JDT.2014.2340892

A flexible TFT circuit yield optimizer considering process variation, aging, and bending effects

Wen En Wei^*, Hung Yi Li, Cheng Yu Han, James Chien Mo Li, Jian Jang Huang, I. Chun Cheng, Chien-Nan Liu, Yung Hui Yeh

^*Corresponding author for this work

Institute of Electronics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

This paper presents a yield optimization tool, FlexiOptimizer , for flexible thin-film transistor (TFT) circuits. FlexiOptimizer considers three important effects: (1) process variation; (2) aging effect; and (3) bending effect. This SPICE-based optimizer applies response surface methodology (RSM) and orthogonal array (OA) techniques to size transistors so the yield is improved in aged and bent condition. This tool is demonstrated on two different designs: organic light emitting diode (OLED) pixel drivers and differential operational amplifiers (OPAMPs), in both amorphous silicon (a-Si) and Indium-Gallium-Zinc-Oxide (IGZO) TFT technologies.

Original language	English
Article number	6860224
Pages (from-to)	1055-1063
Number of pages	9
Journal	IEEE/OSA Journal of Display Technology
Volume	10
Issue number	12
DOIs	https://doi.org/10.1109/JDT.2014.2340892
State	Published - 1 Dec 2014

Keywords

Analog circuit optimization
flexible TFT
orthogonal array
response surface methodology

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10.1109/JDT.2014.2340892

Cite this

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title = "A flexible TFT circuit yield optimizer considering process variation, aging, and bending effects",

abstract = "This paper presents a yield optimization tool, FlexiOptimizer , for flexible thin-film transistor (TFT) circuits. FlexiOptimizer considers three important effects: (1) process variation; (2) aging effect; and (3) bending effect. This SPICE-based optimizer applies response surface methodology (RSM) and orthogonal array (OA) techniques to size transistors so the yield is improved in aged and bent condition. This tool is demonstrated on two different designs: organic light emitting diode (OLED) pixel drivers and differential operational amplifiers (OPAMPs), in both amorphous silicon (a-Si) and Indium-Gallium-Zinc-Oxide (IGZO) TFT technologies.",

keywords = "Analog circuit optimization, flexible TFT, orthogonal array, response surface methodology",

author = "Wei, {Wen En} and Li, {Hung Yi} and Han, {Cheng Yu} and Li, {James Chien Mo} and Huang, {Jian Jang} and Cheng, {I. Chun} and Chien-Nan Liu and Yeh, {Yung Hui}",

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T1 - A flexible TFT circuit yield optimizer considering process variation, aging, and bending effects

AU - Wei, Wen En

AU - Li, Hung Yi

AU - Han, Cheng Yu

AU - Li, James Chien Mo

AU - Huang, Jian Jang

AU - Cheng, I. Chun

AU - Liu, Chien-Nan

AU - Yeh, Yung Hui

PY - 2014/12/1

Y1 - 2014/12/1

N2 - This paper presents a yield optimization tool, FlexiOptimizer , for flexible thin-film transistor (TFT) circuits. FlexiOptimizer considers three important effects: (1) process variation; (2) aging effect; and (3) bending effect. This SPICE-based optimizer applies response surface methodology (RSM) and orthogonal array (OA) techniques to size transistors so the yield is improved in aged and bent condition. This tool is demonstrated on two different designs: organic light emitting diode (OLED) pixel drivers and differential operational amplifiers (OPAMPs), in both amorphous silicon (a-Si) and Indium-Gallium-Zinc-Oxide (IGZO) TFT technologies.

AB - This paper presents a yield optimization tool, FlexiOptimizer , for flexible thin-film transistor (TFT) circuits. FlexiOptimizer considers three important effects: (1) process variation; (2) aging effect; and (3) bending effect. This SPICE-based optimizer applies response surface methodology (RSM) and orthogonal array (OA) techniques to size transistors so the yield is improved in aged and bent condition. This tool is demonstrated on two different designs: organic light emitting diode (OLED) pixel drivers and differential operational amplifiers (OPAMPs), in both amorphous silicon (a-Si) and Indium-Gallium-Zinc-Oxide (IGZO) TFT technologies.

KW - Analog circuit optimization

KW - flexible TFT

KW - orthogonal array

KW - response surface methodology

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A flexible TFT circuit yield optimizer considering process variation, aging, and bending effects

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Keywords

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