substrate current – TechConnect Briefs

Body Bias Dependency of Substrate Current and Its Modeling for SOI Devices

Ma Y., Jeng M-C, Liu Z., Cadence Design System, Inc., US

Two competing factors affect the body bias dependence of substrate current in SOI devices. One is through drain current. The other is through electric field in channel near drain side. It is shown that with [...]

Substrate Current in Surface-Potential-Based Compact MOSFET Models

Gu X., Wang H., Chen T.L., Gildenblat G., Penn State University, US

A new substrate current model was developed which retains the simplicity of the original one but is applicable to all regions of the MOSFET operation with asymtotically correct behaviors and is well suited for use [...]

Semi-Analytic Boltzmann Model for the Substrate Current of Short-Channel MOSFETs with Lightly Doped Drains

Morris H.C., De Pass M.M., San Jose State University, US

As MOSFET sizes have been reduced to nano-scale dimensions, existing models of device behavior, such as the drift diffusion equations, cease to be valid. In the nano domain, more fundamental equations, such as the Boltzmann [...]

Substrate Current Simulations at Elevated Temperatures

Lyumkis E., Mickevicius R., Polsky B., Loechelt G., Zlotnicka A., Thoma R., Integrated Systems Engineering, Inc., US

We report results of hydrodynamic simulations and measurements of substrate currents in submicron MOSFET. Both simulations and measurements show anomalous dependence of the substrate current on lattice temperature, which is consistent with previously published experimental [...]