Stability of amorphous-silicon TFTs deposited on clear plastic substrates at 250 °C to 280 °C

被引:80
作者
Long, K [1 ]
Kattamis, AZ [1 ]
Cheng, IC [1 ]
Gleskova, H [1 ]
Wagner, S [1 ]
Sturm, JC [1 ]
机构
[1] Princeton Univ, Dept Elect Engn, PRISM, Princeton, NJ 08544 USA
关键词
amorphous-silicon (a-Si); device stability; flexible; plastic substrate; thin-film transistor (TFT);
D O I
10.1109/LED.2005.863147
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Amorphous-silicon (a-Si) thin-film transistors (TFTs) were fabricated on a free-standing new clear plastic substrate with high glass transition temperature (T-g) of > 315 degrees C and low coefficient of thermal expansion of < 10 ppm/degrees C. Maximum process temperatures on the substrates were 250 degrees C and 280 degrees C, close to the temperatures used in industrial a-Si TFT production on glass substrates. The first TFTs made at 280 degrees C have dc characteristics comparable to TFTs made on glass. The stability of the 250 degrees C TFTs on clear plastic is approaching that of TFTs made on glass at 300 degrees C-350 degrees C. TFT characteristics and stability depend only on process temperature and not on substrate type.
引用
收藏
页码:111 / 113
页数:3
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