THIN-FILM TRANSISTOR MODELING

We review recent physics-based, analytical DC models for amorphous silicon (a-Si), polysilicon (poly-Si), and organic thin film transistors (TFTs), developed for the design of novel ultra high-resolution, large area displays using advanced short-channel TFTs. In particular, we emphasize the modeling issues related to the main short-channel effects, such as self-heating (a-Si TFTs) and kink effect (a-Si and poly-Si TFTs), which are present in modern TFTs. The models have been proved to accurately reproduce the DC characteristics of a-Si:H with gate lengths down to 4 μm and poly-Si TFTs with gate lengths down to 2 μm. Because the scalability of the models and the use of continuous expressions for describing the characteristics in all operating regimes, the models are suitable for implementation in circuit simulators such as SPICE.

[1]  M. Liang,et al.  Narrow width effects of bottom-gate polysilicon thin film transistors , 1998, IEEE Electron Device Letters.

[2]  N. Cheung,et al.  Application of plasma immersion ion implantation doping to low-temperature processed poly-Si TFTs , 1998, IEEE Electron Device Letters.

[3]  J. Baumbach,et al.  Hybrid organic/inorganic complementary circuits , 1996 .

[4]  Luisa Torsi,et al.  AN ANALYTICAL MODEL FOR SHORT-CHANNEL ORGANIC THIN-FILM TRANSISTORS , 1995 .

[5]  Chul-Hi Han,et al.  Improved stability of short-channel hydrogenated N-channel polycrystalline silicon thin-film transistors with very thin ECR N 2 O-plasma gate oxide , 1998 .

[6]  John A. Rogers,et al.  Organic smart pixels , 1998 .

[7]  E. Narayanan,et al.  Turn-on characteristics of polycrystalline silicon TFT's-impact of hydrogenation and channel length , 1999, IEEE Electron Device Letters.

[8]  Gilles Horowitz,et al.  Role of the semiconductor/insulator interface in the characteristics of π-conjugated-oligomer-based thin-film transistors , 1992 .

[9]  A novel lightly doped drain polysilicon thin-film transistor with oxide sidewall spacer formed by one-step selective liquid phase deposition , 1999 .

[10]  Luisa Torsi,et al.  Schottky diodes and field-effect transistors based on conjugated thiophenes , 1998 .

[11]  Trond Ytterdal,et al.  A short-channel DC SPICE model for polysilicon thin-film transistors including temperature effects , 1999 .

[12]  D. Mensa,et al.  Submicron transferred-substrate heterojunction bipolar transistors , 1999, IEEE Electron Device Letters.

[13]  T. Sigmon,et al.  High-performance laser-processed polysilicon thin-film transistors , 1999, IEEE Electron Device Letters.

[14]  Michael S. Shur,et al.  A new analytic model for amorphous silicon thin‐film transistors , 1989 .

[15]  B. Faughnan.  Subthreshold model of a polycrystalline silicon thin‐film field‐effect transistor , 1987 .

[16]  Lewis J. Rothberg,et al.  Electrically active organic and polymeric materials for thin-film-transistor technologies , 1996 .

[17]  Francis Garnier,et al.  Vertical device architecture by molding of organic-based thin film transistor , 1998 .

[18]  T. A. Fjeldly,et al.  A new charge conserving capacitance model for GaAs MESFET's , 1997 .

[19]  C.G. Sodini,et al.  The effect of high fields on MOS device and circuit performance , 1984, IEEE Transactions on Electron Devices.

[20]  Tsu-Jae King,et al.  A comparison of hydrogen and deuterium plasma treatment effects on polysilicon TFT performance and dc reliability , 1999, IEEE Electron Device Letters.

[21]  Tor A. Fjeldly,et al.  Unified model for short-channel poly-Si TFTs , 1999 .

[22]  F. Garnier.  Scope and limits of organic–based thin–film transistors , 1997, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[23]  Gilles Horowitz,et al.  An analytical model for organic‐based thin‐film transistors , 1991 .

[24]  M. Matsumura,et al.  Short-channel amorphous-silicon thin-film transistors , 1996 .

[25]  Trond Ytterdal,et al.  SPICE Models for Amorphous Silicon and Polysilicon Thin Film Transistors , 1997 .

[26]  Michael S. Shur,et al.  Physics of amorphous silicon based alloy field‐effect transistors , 1984 .

[27]  S. M. Fluxman,et al.  Design and performance of digital polysilicon thin-film-transistor circuits on glass , 1994 .

[28]  Won Kyu Kwak,et al.  A novel coplanar amorphous silicon thin-film transistor using silicide layers , 1999 .