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Lossless inductor current sensing is preferred in the current controlled DC-DC converters to improve the power efficiency. However the sensing accuracy for the conventional lossless method is not as good as the direct current measurement with shunt resistors. In this paper, a novel online calibration method using the matched complementary filter (MCF) current sensing is proposed to overcome the poor...
Parasitic resistance (Rpara) is a grand challenge to successfully hetero-integrate III-V channels onto Si for CMOS application. Here, we report the first statistical IDsat comparison for non-self-aligned and self-aligned contacts of In0.53Ga0.47As MOSFETs fabricated on large scale Si substrates with VLSI toolsets. We compare non-self-aligned Mo and self-aligned Ni-InGaAs contacts. Devices with self-aligned...
We report the results of a systematic study to understand low drive current of Ge-based nMOSFET. The poor electron transport property is primarily attributed to the intrinsically low density of state and high conductivity effective masses. Results are supported by interface trap density (Dit) and specific contact resistivity (rhoc), which are comparable (or symmetric) for both n- and p-MOSFETs. Effective...
We have developed a novel dual phase-modulated Ni silicide for Schottky barrier and series resistance reduction in dopant-segregated source/drain (DSS) n-MOSFETs. Using pre-silicide N2+ implant (thereafter N-implant), it is possible to selectively form interfacial epitaxial Si-rich NiSi2, reducing electron Schottky barrier(SB) from 0.7 eV to 0.34 eV while maintaining a low resistive bulk NiSi, at...
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