Substrate coupling can corrupt low level analog signals and impair the performance of monolithic integrated circuits. Therefore, a characterization methodology able to evaluate the efficiency of the countermeasures against crosstalk, appears very important for designers. In this paper, after the verification that PMOS transistors are more sensitive to substrate voltage fluctuations than NMOS on...

| Switching noise is one of the major sources of timing errors and functional hazards in logic circuits. It is caused by the cumulative e ect of microscopic spurious currents present in all devices during logic transitions. These currents are injected into the substrate and in supply lines, resulting in signi cant ripple noise. Individually, such micro-currents, do not usually cause catastrophi...

The operating principle and noise performance in AlGaN/GaN HFETs has been studied. In particular, it has been demonstrated that substrate material selection plays a great role in device performance for application point of view. Polarization induced surface states plays key role in formation of 2 DEG. Performance parameters study of device is related to noise study in devices because low freque...

Lumped element models for the frequency dependence of substrate parasitics in integrated circuits are evaluated. The frequency ranges for which these models are applicable have been identified. Two new models that are suitable for very high frequencies are also presented.

Techniques are presented to compactly represent substrate noise currents injected by digital networks. Using device-level simulation, every gate in a given library is modeled by means of the signal waveform it injects into the substrate, depending on its input transition scheme. For a given sequence of input vectors, the switching activity of every node in the Boolean network is computed. Assum...

A companion analysis of clock jitter and phase noise of single-ended and differential ring oscillators is presented. The impulse sensitivity functions are used to derive expressions for the jitter and phase noise of ring oscillators. The effect of the number of stages, power dissipation, frequency of oscillation, and shortchannel effects on the jitter and phase noise of ring oscillators is anal...

A Faraday cage structure using through-substrate vias is an effective strategy to suppress substrate crosstalk, particularly at high frequencies. Faraday cages can reduce substrate noise by 32 dB at 10 GHz, and 26 dB at 50 GHz. We have developed lumped-element, equivalent circuit models of the Faraday cages and test structures to better understand the performance of the Faraday cages. These mod...