Highly Reliable Amorphous Silicon Gate Driver Using Stable Center-Offset Thin-Film Transistors

被引:48
作者
Choi, Jae Won [1 ]
Kim, Jae Ik [1 ]
Kim, Se Hwan [1 ]
Jang, Jin [1 ]
机构
[1] Kyung Hee Univ, Adv Display Res Ctr, Dept Informat Display, Seoul 130701, South Korea
关键词
Amorphous materials; integrated circuits; shift registers; thin-film transistors (TFTs); INSTABILITY MECHANISMS; DEPENDENCE; STABILITY; TIME;
D O I
10.1109/TED.2010.2054453
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
This paper reports a highly reliable hydrogenated amorphous silicon (a-Si:H) gate driver using center-offset thin-film transistors (TFTs). The a-Si:H TFTs with a center-offset structure are demonstrated to be highly reliable compared to a conventional a-Si:H TFT. The V-th shift of center-offset a-Si:H TFTs was found to be 35% less than that of the conventional a-Si:H TFT. Therefore, the center-offset a-Si:H TFTs are used as pull-down TFTs in the gate driver circuit. When the center-offset pull-down TFTs are used in the a-Si:H gate driver, the output off-state of the gate driver remains stable for periods longer than 3 x 10(8) s.
引用
收藏
页码:2330 / 2334
页数:5
相关论文
共 14 条
[1]   Distinguished student paper:: Noble a-Si:H gate driver with high stability [J].
Choi, Jae Won ;
Kwon, Min Sung ;
Koo, Ja Hun ;
Park, Jong Hyuk ;
Kim, Se Hwan ;
Oh, Dong Hae ;
Lee, Seung-Woo ;
Jang, Jin .
2008 SID INTERNATIONAL SYMPOSIUM, DIGEST OF TECHNICAL PAPERS, VOL XXXIX, BOOKS I-III, 2008, 39 :1227-1230
[2]  
Choi JW, 2006, J KOREAN PHYS SOC, V48, pS98
[3]  
Chun M, 2005, IDW/AD '05: PROCEEDINGS OF THE 12TH INTERNATIONAL DISPLAY WORKSHOPS IN CONJUNCTION WITH ASIA DISPLAY 2005, VOLS 1 AND 2, P1077
[4]   AMORPHOUS-SILICON SHIFT REGISTER FOR ADDRESSING OUTPUT DRIVERS [J].
DACOSTA, VM ;
MARTIN, RA .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1994, 29 (05) :596-600
[5]   DC-gate-bias stressing of a-Si : H TFTs fabricated at 150°C on polyimide foil [J].
Gleskova, H ;
Wagner, S .
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2001, 48 (08) :1667-1671
[6]   The instability mechanisms of hydrogenated amorphous silicon thin film transistors under AC bias stress [J].
Huang, CY ;
Teng, TH ;
Tsai, JW ;
Cheng, HC .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2000, 39 (7A) :3867-3871
[7]   Drain-bias dependence of threshold voltage stability of amorphous silicon TFTs [J].
Karim, KS ;
Nathan, A ;
Hack, M ;
Milne, WI .
IEEE ELECTRON DEVICE LETTERS, 2004, 25 (04) :188-190
[8]  
Koo JH, 2006, IDW '06: PROCEEDINGS OF THE 13TH INTERNATIONAL DISPLAY WORKSHOPS, VOLS 1-3, P757
[9]  
Koo JH, 2007, J KOREAN PHYS SOC, V50, pL933, DOI 10.3938/jkps.50.933
[10]   BIAS-STRESS-INDUCED STRETCHED-EXPONENTIAL TIME-DEPENDENCE OF CHARGE INJECTION AND TRAPPING IN AMORPHOUS THIN-FILM TRANSISTORS [J].
LIBSCH, FR ;
KANICKI, J .
APPLIED PHYSICS LETTERS, 1993, 62 (11) :1286-1288