This study presents the design and fabrication of a capacitive micro humidity sensor integrated with a five-stage ring oscillator circuit on chip using the complimentary metal oxide semiconductor (CMOS) process. The area of the humidity sensor chip is about 1 mm(2). The humidity sensor consists of a sensing capacitor and a sensing film. The sensing capacitor is constructed from spiral interdigi...

The goal of internal frequency compensation of a low dropout voltage regulator (LDO) is the selection of a small-value, ESR-independent output capacitor. Cascode compensation formed by a common-gate transistor acting as a current buffer, an optional series resistor, and a compensation capacitor creates a dominant pole and a left-halfplane (LHP) zero, allowing adequate phase margin and stable LD...

We propose a tunable plasmonic semiconductor laser that exploits loss perturbation as tuning mechanism. A metal oxide (MOS) capacitive structure is added on top of an edge-emitting Fabry-Perot (FP) diode laser, such hybrid TM mode overlaps partly with the MOS capacitor and gain region supported lasing mode. also use layer conductive oxide, <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" ...

in distribution systems, in order to diminish power losses and keep voltage profiles within acceptable limits, network reconfiguration and capacitor placement are commonly used. in this paper, the hybrid shuffled frog leaping algorithm (hsfla) is used to optimize balanced and unbalanced radial distribution systems by means of a network reconfiguration and capacitor placement. high accuracy and ...

This paper presents a dual-channel fully integrated audiometric system, which generates the complete set of audio and control signals required for exhaustive audiometric tests. The system includes a novel signal generator, based on the direct digital synthesis technique, which fulfills the requirements of advanced audiometric tests. The proposed system faces two different problems, namely, the ...

We present a silicon optomechanical nanobeam design with a dynamically tunable acoustic mode at 10.2 GHz. The resonance frequency can be shifted by 90 kHz/V2 with an on-chip capacitor that was optimized to exert forces up to 1 µN at 10 V operation voltage. Optical resonance frequencies around 190 THz with Q-factors up to 2.2 × 106 place the structure in the well-resolved s...

We present a fully integrated CMOS receiver for micro-magnetic resonance imaging together with a custom-made micro-gradient system. The receiver is designed for an operating frequency of 300 MHz. The chip consists of an on-chip detection coil and tuning capacitor as well as a low-noise amplifier and a quadrature downconversion mixer with corresponding low-frequency amplification stages. The des...

Air embolism can be a potentially fatal complication of surgical procedures when air or sub-atmospheric is introduced under pressure into a body cavity. For the diagnosis and the treatment of air embolism quickly and efficiently, we have developed the air detector using microstructure capacitive sensor. The sensor consists of micro-channel on Pyrex 7740 glass with upper and lower electrodes whi...