Electrical properties of aluminum oxide ceramics film on a metal

2021 ◽  
Vol 2 ◽  
pp. 59-65
Author(s):  
I. Yu. Bakeev ◽  
◽  
Yu. A. Burachevsky ◽  
E. S. Dvilis ◽  
D. B. Zolotukhin ◽  
...  

The work is devoted to the study of electrical properties (temperature dependences of conductivity, relative dielectric constant, dielectric loss tangent for various frequencies) of an aluminum oxide ceramic film deposited on a metal substrate. The film was created by the original method of electron beam evaporation of a non-conductive target, consisting of a compressed alumina powder, using a plasma electron source, which is able to reliably operate in the fore-vacuum pressure range (5 – 100 Pa). Such increased working gas pressures ensures the generation of a dense beam plasma near the target, which neutralizes the charging of a non-conducting target and thereby provides its effective melting and electron beam evaporation.

1995 ◽  
Vol 10 (1) ◽  
pp. 26-33 ◽  
Author(s):  
L.M. Porter ◽  
R.F. Davis ◽  
J.S. Bow ◽  
M.J. Kim ◽  
R.W. Carpenter

Thin films (4–1000 Å) of Co were deposited onto n-type 6H-SiC(0001) wafers by UHV electron beam evaporation. The chemistry, microstructure, and electrical properties were determined using x-ray photoelectron spectroscopy, high resolution transmission electron microscopy, and I-V and C-V measurements, respectively. The as-deposited contacts exhibited excellent rectifying behavior with low ideality factors and leakage currents of n < 1.06 and 2.0 × 10−8 A/cm2 at −10 V, respectively. During annealing at 1000 °C for 2 min, significant reaction occurred resulting in the formation of CoSi and graphite. These annealed contacts exhibited ohmic-like character, which is believed to be due to defects created in the interface region.


2015 ◽  
Vol 15 (9) ◽  
pp. 964-969 ◽  
Author(s):  
Hui Kyung Park ◽  
Jaeseung Jo ◽  
Hee Kyeung Hong ◽  
Gwang Yeom Song ◽  
Jaeyeong Heo

Vacuum ◽  
2007 ◽  
Vol 81 (9) ◽  
pp. 1023-1028 ◽  
Author(s):  
Jianke Yao ◽  
Jianda Shao ◽  
Hongbo He ◽  
Zhengxiu Fan

Coatings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 82
Author(s):  
Yury G. Yushkov ◽  
Efim M. Oks ◽  
Andrey V. Tyunkov ◽  
Denis B. Zolotukhin

This is a review of current developments in the field of ion-plasma and beam methods of synthesis of protective and functional dielectric coatings. We give rationales for attractiveness and prospects of creating such coatings by electron-beam heating and following evaporation of dielectric targets. Forevacuum plasma electron sources, operating at elevated pressure values from units to hundreds of pascals, make it possible to exert the direct action of an electron beam on low-conductive materials. Electron-beam evaporation of aluminum oxide, boron, and silicon carbide targets is used to exemplify the particular features of electron-beam synthesis of such coatings and their parameters and characteristics.


1975 ◽  
Vol 30 (12) ◽  
pp. 1661-1666 ◽  
Author(s):  
P. J. P. De Maayer ◽  
J. D. Mackenzie

Abstract Thin films of metallically conductive titanium mononitride and carbide were prepared by means of electron beam evaporation. The composition of the samples could be changed over appreciable ranges by introducing nitrogen in the system or adding carbon to the pure starting material, respectively. The transport properties of the resulting compounds were studied as a function of nonstoichiometry and defect structure. A plausible explanation for the different behavior of the films compared to corresponding bulk samples is given and a correlation between the change in electron concentration and the electron transfer theory is presented.


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