The relation between the resistivity of the drain-line/pixel-electrode contact and SiN deposition condition

2002 ◽  
Author(s):  
S. Takanabe ◽  
Y. Goto ◽  
S. Nagao ◽  
H. Nagata ◽  
O. Miyakawa ◽  
...  
Keyword(s):  
Deposition Condition ◽  
Electrode Contact

scholarly journals Textile Electrodes: Influence of Knitting Construction and Pressure on the Contact Impedance

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1578
Author(s):  
Luisa Euler ◽  
Li Guo ◽  
Nils-Krister Persson
Keyword(s):  
Smooth Surface ◽  
Research Field ◽  
Uneven Surface ◽  
Contact Impedance ◽  
Dry Electrodes ◽  
Textile Electrodes ◽  
Human Forearm ◽  
Wet Condition ◽  
Electrode Contact ◽  
Influencing Parameters

Textile electrodes, also called textrodes, for biosignal monitoring as well as electrostimulation are central for the emerging research field of smart textiles. However, so far, only the general suitability of textrodes for those areas was investigated, while the influencing parameters on the contact impedance related to the electrode construction and external factors remain rather unknown. Therefore, in this work, six different knitted electrodes, applied both wet and dry, were compared regarding the influence of specific knitting construction parameters on the three-electrode contact impedance measured on a human forearm. Additionally, the influence of applying pressure was investigated in a two-electrode setup using a water-based agar dummy. Further, simulation of an equivalent circuit was used for quantitative evaluation. Indications were found that the preferred electrode construction to achieve the lowest contact impedance includes a square shaped electrode, knitted with a high yarn density and, in the case of dry electrodes, an uneven surface topography consisting of loops, while in wet condition a smooth surface is favorable. Wet electrodes are showing a greatly reduced contact impedance and are therefore to be preferred over dry ones; however, opportunities are seen for improving the electrode performance of dry electrodes by applying pressure to the system, thereby avoiding disadvantages of wet electrodes with fluid administration, drying-out of the electrolyte, and discomfort arising from a “wet feeling”.

Fabrication of YMnO3 Films: New Candidate for Non-Volatile Memory Devices

1996 ◽  
Vol 433 ◽  
Author(s):  
Norifumi Fujimura ◽  
Tadashi Ishida ◽  
Takeshi Yoshimura ◽  
Taichiro Ito
Keyword(s):  
Nonvolatile Memory ◽  
Valence Electron ◽  
Bottom Electrode ◽  
Rf Magnetron Sputtering ◽  
Film Deposition ◽  
Deposition Condition ◽  
Memory Devices ◽  
Non Volatile Memory ◽  
Nonvolatile Memory Devices ◽  
First Time

AbstractWe have proposed ReMnO3 (Re:rare earth) thin films, as a new candidate for nonvolatile memory devices. In this paper, we try to fabricate (0001) oriented YMnO3 films on (111)MgO, (0001)ZnO:Al/(0001) sapphire and (111)Pt/(111)MgO using rf magnetron sputtering. We succeed in obtaining (0001) epitaxial YMnO3 films on (111) MgO and (0001)ZnO:Al/(0001)sapphire substrate, and polycrystalline films on (111)Pt/(1 11)MgO for the first time. Electrical property of the bottom electrode (ZnO:Al) changes with varying the deposition condition of YMnO3 films. However, we find an optimum deposition condition of ZnO:Al film such that it functions as a bottom electrode even after YMnO3 film deposition. The dielectric properties of the epitaxial and polycrystalline YMnO3 films are almost the same. The YMnO3 films show leaky electrical properties. This may be caused by a change in the valence electron of Mn from 3+.

Properties of perpendicular-anisotropy magnetic tunnel junctions fabricated over the bottom electrode contact

2015 ◽  
Vol 54 (4S) ◽  
pp. 04DM06 ◽  
Author(s):  
Sadahiko Miura ◽  
Hiroaki Honjo ◽  
Keizo Kinoshita ◽  
Keiichi Tokutome ◽  
Hiroaki Koike ◽  
...  
Keyword(s):  
Bottom Electrode ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Perpendicular Anisotropy ◽  
Electrode Contact

scholarly journals Prediction of Behavioral T/C Levels in Cochlear Implant Patients Based Upon Analysis of Electrode Impedances

2021 ◽  
Author(s):  
A. Molisz ◽  
A. Zarowski ◽  
E. Cardinael ◽  
A. Vermeiren ◽  
T. Theunen ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implants ◽  
Objective Measure ◽  
Analysis Data ◽  
Case Review ◽  
Data Collection And Analysis ◽  
Compound Action Potentials ◽  
Subjective Threshold ◽  
Electrode Contact ◽  
Maximum Comfort

Abstract Background Fitting cochlear implants in babies and noncooperative patients is cumbersome and time consuming. Therefore, objective parameters have been sought in order to predict the subjective threshold (T) and maximum comfort (C) levels. Measurements of the electrically evoked compound action potentials (ECAPs) have been widely used for this purpose, yet the correlation between these objective measures and the subjective T/C levels is weak to moderate. Purpose This article aims (1) to evaluate correlations between the subjective parameters of the fitting maps such as thresholds (T level) and maximum comfort levels (C level), the impedance of the electrode contacts, and the ECAP thresholds, and (2) to compare the value of the electrode impedances and the ECAP measures for prediction of the T/C levels. Research Design Case review study in a quaternary otologic referral center. Study Sample Ninety-eight consecutive CI patients were enrolled. The average age of the patients was 49 years. All patients were users of the Nucleus 24RECA (Freedom, Contour Advance-of-Stylet electrode) cochlear implant. Data Collection and Analysis Data on impedance of the electrode contacts and the behavioral T/C levels at the first fitting session (2–5 weeks after surgery) and at the 5th fitting session (4–6 months after surgery) have been retrospectively collected in 98 consecutive CI patients. Additionally, the intraoperative impedance values and the ECAP thresholds (tNRT) have been recorded. Results Impedances of electrode contacts show significant strong negative correlations with the stabilized T/C levels at 4 to 6 months after implantation and are an important predictor for the behavioral T/C levels. They can explain R 2 = 28 to 41% of the variability of the behavioral T/C levels. In multiple regression analysis electrode contact impedances can explain twice as much of the variability of the stabilized T/C levels than the tNRT values. The electrode impedances together with the tNRT values are able to explain R 2 = 37 to 40% of the global variability of the T/C levels while the tNRT thresholds solely are able to explain only R 2 = 5 to 14% of the T/C levels variability. Conclusion Impedances of electrode contacts correlate strongly with the stabilized behavioral T/C levels and may be used as an objective measure for fitting of cochlear implants.

Modeling the influence of two terminal electrode contact geometry and sample dimensions in electro‐materials

2018 ◽  
Vol 102 (6) ◽  
pp. 3609-3622 ◽  
Author(s):  
Richard A. Veazey ◽  
Amy S. Gandy ◽  
Derek C. Sinclair ◽  
Julian S. Dean
Keyword(s):  
Contact Geometry ◽  
Electrode Contact
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