The Coherent FinFET Prof. Carlo Requião da Cunha, Ph.D.

Apresentação em tema: "The Coherent FinFET Prof. Carlo Requião da Cunha, Ph.D."— Transcrição da apresentação:

1 The Coherent FinFET Prof. Carlo Requião da Cunha, Ph.D.
Laboratório de Circuitos Integrados UFSC Núcleo Interdisciplinar de Microeletrônica Chip in Rio Sep / 07

2 Ballistic Transport L < Lm (Momentum Relaxation Length) = .Lc L Lm
 = ? Diffusive Transport Ballistic Transport

3 Coherent Transport L < L (Phase Relaxation Length) = .Lc L L
Phase randomizing agents: e- - e-, e- - ph

4 A Model Device: Fin Structure
J

5 Simulation Strategy Poisson Schrödinger structure potential current
density Poisson Schrödinger

6 Green’s Functions JUST MATH

7 Huge Discussion!

8 ID  VDS Characteristic

9 Gating Action ~73 A/V

10 Negative Gate Bias

11 Quantization

12 Conclusions The coherent FinFET still retains some of the main properties of the classical MOS depletion transistor; Intrinsic quantum behavior makes the drain current marginally sensitive to gate action; Output resistance is highly reduced; The transistor shows a quantum transition for negative gate voltages that might lead to the design of new devices.