Kh. Lee et al., LOW-TEMPERATURE POLYCRYSTALLINE LINE SILICON THIN-FILM-TRANSISTOR WITH SILICON-NITRIDE ION STOPPER, IEEE electron device letters, 17(6), 1996, pp. 258-260
The authors have fabricated a new low temperature polycrystalline sili
con (poly-Si) thin film transistor (TFT) with silicon nitride (SiNx) i
on-stopper and laser annealed poly-Si, The fabricated poly-Si TFT usin
g SiNx as the ion-stopper as well as the gate insulator exhibited a he
ld effect mobility of 110 cm(2)/Vs, threshold voltage of 3.5 V, subthr
eshold slope of 0.48 V/dec., and on/off current ratio of similar to 10
(6). Low off-state leakage current of 2.4 x 10(-12) A/mu m at the drai
n voltage of 5 V and gate voltage of -5 V was achieved.