Title :
Consistent gate and substrate current modeling based on energy transport and the lucky electron concept
Author :
Meinerzhagen, B.
Author_Institution :
Aachen Univ., West Germany
Abstract :
A numerical model for electron gate and substrate currents in n-channel silicon MOS devices is presented. The model accurately describes hot electron injection into the gate oxide triggered by substrate voltage, drain voltage, and substrate current over a large range of bias conditions and channel lengths. In all three cases the electrons with energies higher than the respective threshold energy are modeled identically. Differences due to different physical mechanisms involved in the three cases are taken into account by means of three different constant leading factors.<>
Keywords :
elemental semiconductors; hot carriers; insulated gate field effect transistors; semiconductor device models; silicon; Si; channel lengths; consistent model; drain voltage; energy transport; gate currents; hot electron injection; lucky electron concept; n-channel MOSFET; numerical model; physical mechanisms; range of bias conditions; semiconductors; substrate current; substrate current modeling; substrate voltage; Current density; Electrostatics; Equations; Impact ionization; MOS devices; Numerical models; Probability distribution; Secondary generated hot electron injection; Substrate hot electron injection; Voltage;
Conference_Titel :
Electron Devices Meeting, 1988. IEDM '88. Technical Digest., International
Conference_Location :
San Francisco, CA, USA
DOI :
10.1109/IEDM.1988.32865