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Variations in electrical impedance over frequency might be used to distinguish the degree of atopic dermatitis (AD), even if the mechanisms of the skin barrier impairment due to AD are still unknown. We observed the skin bioimpedance of normal mice and of abnormal mice having atopic with instrument measuring electrical impedance. Electrical impedance was measured from 20Hz to 1MHz at many frequencies...
We present the design, fabrication and testing of a high-resolution ground reaction sensor cluster (GRSC) as an auxiliary sensor for pedestrian navigation. The GRSC consists of a flexible high-density array of compressible, elastomeric capacitive pressure and two-dimensional shear sensors. When placed at the heel of a boot, the 169-cell GRSC measures detailed information about the position and motion...
This paper presents the excellent enhancement of power integrity (PI) by using through-silicon-via (TSV), which gives very small inductance to power distribution network (PDN) and consequently makes PDN impedance very low by sharing PDNs of 3-dimensionally (3-D) stacked chips. In this paper, the enhanced PI is shown by comparing that of wire-bonding applied 3-D stacked chips. A single SG (Signal/Ground)-TSV-pair...
In this paper, a 12-channel 60-Gb/s differential transimpedance amplifier (TIA) and limiting amplifier (LA) array is realized in a 0.18-mum standard CMOS technology for the applications of hybrid optical printed-circuit boards (OPCBs). To relax the design tradeoffs of the TIA between the bandwidth and the large photodiode capacitance, we exploit the advanced common-gate input stage. And active feedback...
Integration of low-cost and high performance passive capacitors into existing silicon CMOS technologies is essential for analog and radio frequency (RF) IC applications. Recently, BEOL vertical natural capacitors (VNCAP) with stacked via-comb structures have emerged as an attractive option due to their low-cost, high density, and highly symmetric configurations. In order to accurately predict low-k...
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