As the scaling proceeds, the transverse electric field increase, and a mobility attenuation phenomenon becomes of primordial interest. Indeed, the high transverse electric field is generally ascribed [1] to surface roughness scattering in the channel and consequently reduce effective mobility of carriers. In short channel MOSFET, the Source-Drain resistance Rsa influence strongly the effective mobility. The aim of this work is therefore to propose an original method especially conceived for the extraction of the series resistance Rsd. Using the approach of the Surface Roughness Scattering which enables a consistent modelling of the mobility to be obtained from low to high electric field [2], this allow to determine all model parameters in particular a Series Resistance from the plot of the transfer characteristic drain current Id versus gate voltage Vg Curves.
The electrical properties of the drain-substrate diode of MOSFETs are shown to be related to the device geometrical structure. The two dimensional analysis takes into account the edge effects of the length and width of the gate. Intrinsic parameters are extracted from current-voltage characteristics and obtained dependent on these dimensions.
This paper describes a prototype thermoelectric sensor system which makes use of the thermoelectrical effects. The sensor includes two printed circuits, the first is constituted of a resistive constantan track, the second is a planar thermoelectric circuit constituted of many plated differential thermocouples. The first circuit is placed at the top of the second circuit so that the resistive tack is placed on the top of the even thermocouple junctions. The measuring method consists to passing an electrical current through the constantan track in order to generate temperature gradients between the junction points of the second circuit. Then the resulting temperature differences between the junction points is directly converted into a proportional Seebeck voltage. As an application, the sensor is placed into a reservoir and adapted in order to realize a fluid level detector.
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