quantum-dot cellular automata (qca) is an emerging and promising technology that provides significant improvements over cmos. recently qca has been advocated as an applicant for implementing reversible circuits. however qca, like other nanotechnologies, suffers from a high fault rate. the main purpose of this paper is to develop a fault tolerant model of qca circuits by redundancy in hardware a...

Substrate noise generated by digital circuits on mixed-signal ICs can disturb the sensitiveanalog/RF circuits, such as Low Noise Amplifier (LNA), sharing the same substrate. This paperinvestigates the adverse impact of the substrate noise on a high frequency cascode LNA laid out on alightly doped substrate. By studying the major noise coupling mechanisms, a new and efficientmodeling method is p...

An on-chip signal conditioning CMOS Integrated Circuit on Si (111) was fabricated for use in multi-point neural activity recording. The two-dimensional (2D) micro-Si probe array for neural activity recording sensor can be fabricated on the IC by Vapor-Liquid-Solid (VLS) growth method. However, the circuit has to be fabricated on Si (111) wafer because micro-Si probe is grown perpendicularly onl...

We present for the first time a three-dimensional (3-D) Si CMOS interconnection system consisting of three layers of optically interconnected hybrid integrated Si CMOS transceivers. The transceivers were fabricated using 0.8m digital Si CMOS foundry circuits and were integrated with long wavelength InP-based emitters and detectors for through-Si vertical optical interconnections. The optical tr...

This work studies the effects of dynamic threshold design techniques on the speed and power of digital circuits. A new dynamic threshold transistor structure has been proposed to improve performances of digital circuits. The proposed switched-capacitor dynamic threshold PMOS (SC-DTPMOS) scheme employs a capacitor along with an NMOS switch in order to effectively reduce the threshold voltage of ...

In this paper the development of a capacitive microphone with integrated preamplifier is described. The condenser microphone is made by micromachining of polyimide on silicon, and is compatible with CMOS technology. Therefore, the structure can be realised by post processing on substrates containing integrated circuits, independently of the IC process. Microphones with a required DC bias voltag...

The development of low temperature, thin film transistor processes that has enabled flexible displays also presents opportunities for flexible electronics and flexible integrated systems. Of particular interest are possible applications in flexible, low metal content, sensor systems for unattended ground sensors, smart medical bandages, electronic ID tags for geo-location, conformal antennas, n...