نتایج جستجو برای: a capacitance

تعداد نتایج: 13434286  

1999
Andrew B. Kahng Sudhakar Muddu

We describe an improved iterationless approach for computing the effective capacitance of an interconnect load at a driving gate output. The speed and accuracy of our approach makes it suitable for the analysis loop within performance-driven iterative layout optimization. We present an iterationless approach for computing the effective capacitance of an interconnect load at a gate output when t...

Journal: :Lab on a chip 2012
Rimi Lee Jihun Kim Sook Young Kim Seon Mi Jang Sun-Mi Lee In-Hong Choi Seung Woo Park Jeon-Soo Shin Kyung-Hwa Yoo

Label-free cell-based assays have emerged as a promising means for high-throughput screening. Most label-free sensors are based on impedance measurements that reflect the passive electrical properties of cells. Here we introduce a capacitance-based assay that measures the dielectric constant (capacitance) of biological cells, and demonstrate the feasibility of analyzing endocytosis and screenin...

2003
F. C. MEINZER

The present study examines the manner in which several whole-tree water transport properties scale with speciesspecific variation in sapwood water storage capacity. The hypothesis that constraints on relationships between sapwood capacitance and other water relations characteristics lead to predictable scaling relationships between intrinsic capacitance and whole-tree behaviour was investigated...

2017
Qinghua Tian Xiang Wang Guoyong Huang Xueyi Guo

Nanostructured Co doped Mn3O4 spinel structure ((Co, Mn)3O4) were prepared by co-precipitation under O3 oxidizing conditions and post-heat treatment. The product was composed of nanogranules with a diameter of 20-60 nm. The electrochemical performance of (Co, Mn)3O4 electrode was tested by cyclic voltammetry, impedance, and galvanostatic charge-discharge measurements. A maximum specific capacit...

2008
C. Hoyle

Transimpedance amplifiers using voltage feedback operational amplifiers are widely used for current to voltage conversion in applications when a moderatehigh bandwidth and a high sensitivity are required, such as photodiodes, photomultipliers, electron multipliers and capacitive sensors. The conventional circuit presents a virtual earth to the input and at low frequencies, the input capacitance...

Journal: :Science 2011
Lu Li C Richter S Paetel T Kopp J Mannhart R C Ashoori

Increases in the gate capacitance of field-effect transistor structures allow the production of lower-power devices that are compatible with higher clock rates, driving the race for developing high-κ dielectrics. However, many-body effects in an electronic system can also enhance capacitance. Onto the electron system that forms at the LaAlO(3)/SrTiO(3) interface, we fabricated top-gate electrod...

2015
A. C. Sarmah

The Al-MoO3-P-CdTe-Al MOS sandwich structures were fabricated by vacuum deposition method on cleaned glass substrates. Capacitance versus voltage measurements were performed at different frequencies and sweep rates of applied voltages for oxide and semiconductor films of different thicknesses. In the negative voltage region of the C-V curve a high differential capacitance of the semiconductor ...

Journal: :IEICE Transactions 2010
Shiho Hagiwara Koh Yamanaga Ryo Takahashi Kazuya Masu Takashi Sato

A fast calculation tool for state-dependent capacitance of power distribution network is proposed. The proposed method achieves linear time-complexity, which can be more than four orders magnitude faster than a conventional SPICE-based capacitance calculation. Large circuits that have been unanalyzable with the conventional method become analyzable for more comprehensive exploration of capacita...

1999
T. M. Shaw M. Huang R. B. Laibowitz J. D. Baniecki

Barium strontium titanate thin films are being developed as capacitors in dynamic random access memories. These films, grown on silicon substrates, are under tensile residual stress. By a converse electrostrictive effect, the in-plane tensile stress reduces the capacitance in the thickness direction of the film. We measured the substrate curvature change upon the removal of the film, and found ...

2003
A A Kuijpers G J M Krijnen R J Wiegerink M Elwenspoek

This paper presents the results of 2D-finite-element simulations of the periodic change in capacitance between two periodic structures, one sliding and one fixed (i.e. sense-structure). These structures are potentially interesting for long-range and high-accuracy position detection of microactuators. The use of periodic geometries and the combination of a discrete (incremental) and analog measu...

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