Abstract
In order to investigate the role of self-heating effects on the electrical characteristics of nanoscale devices, we implemented a 2-D Monte Carlo device simulator that includes the self-consistent solution of the energy balance equations for both acoustic and optical phonons. The acoustic and optical phonon temperatures are fed back into the electron transport solver through temperature-dependent scattering tables. The electrothermal device simulator was used in the study of different generations of nanoscale fully depleted silicon-on-insulator devices that are either already in production or will be fabricated in the next five to ten years. We find less degradation due to self-heating in very short channel device structures due to the increasing role of nonstationary velocity-overshoot effects which are less sensitive to the local temperature.
Original language | English (US) |
---|---|
Pages (from-to) | 1306-1316 |
Number of pages | 11 |
Journal | IEEE Transactions on Electron Devices |
Volume | 55 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2008 |
Externally published | Yes |
Keywords
- Acoustic and optical phonons
- Boltzmann transport equation (BTE)
- Nanodevices
- Particle-based device simulations
- Scaling
- Thermal effects
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering