Investigation of Polycrystalline silicon TFT’s electrical characteristics

Auteurs :  Hadjira Tayoub, Baya Zebentout, Zineb Benamara
Année : 2017
Domaine : Electronique
Type : Communication
Conférence: ICENT'17
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés : Poly-Si TFT, TCAD-ATLAS, electrical characteristics

Résumé : 

Low-temperature polycrystalline silicon thin film transistors (poly-Si TFT’s) on plastic substrate have been studied because of their high performance in Active Matrix Liquid Crystal Displays (AMLCD’s) and Active Matrix Organic Light-Emitting Diode (AMOLED) applications. The purpose of this work is to simulate the impact of varying the electrical and physical parameters (the interface states, active layer’s thickness and BBT model) in the transfer characteristics of poly-Si TFT to extract the electrical parameters like threshold voltage, mobility and to evaluate the device performance. The device was simulated using the ATLAS software from Silvaco. The results show that the electrical and physical parameters of poly-Si TFT affect significantly its transfer characteristics.