passivation


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passivation

[‚pas·ə′vā·shən]
(electronics)
Growth of an oxide layer on the surface of a semiconductor to provide electrical stability by isolating the transistor surface from electrical and chemical conditions in the environment; this reduces reverse-current leakage, increases breakdown voltage, and raises power dissipation rating.
(metallurgy)
To render passive; to reduce the reactivity of a chemically active metal surface by electrochemical polarization or by immersion in a passivating solution.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

passivation

Treatment of a metal surface which leaves a protective coating, rendering the surface less reactive chemically.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Picosun Group, supplier of AGILE ALD (Atomic Layer Deposition) thin film coating solutions, has revealed its results in increasing micro-LED performance using ALD passivation.
In the lawsuits, Hanwha claims its three rivals have used its patented solar cell passivation technology to increase the performance of their products.
Titled "Dynamics of self re-organization explains passivation of silicate glasses," the paper was published in Nature Communications on June 4.
SonicCells may also be configured as passivation and liquid penetrant inspection lines.
Laboratory use of this innovative technology has demonstrated that by controlling the charge state, hydrogen atoms can be used to fix defects and recombination mechanisms within the silicon wafers that are not effectively passivated using conventional hydrogen passivation processes.
In previous studies, it was found that UFG Fe-Cr alloys with 20% Cr processed by ECAP, with a large fraction of nonequilibrium high-angle grain boundaries (HAGBs), exhibited higher corrosion resistance than coarse-grained (CG) material, and this was attributed to enhanced passivation [7-11].
Customers can now find one-stop-shopping for parts that require electropolishing, laser marking, and a subsequent passivation operation.
The flat silicon structure covered by Si[O.sub.2] passivation layer and hemisphere Ag back reflect reflection is also included for comparison which has much lower absorption in whole wavelength.
At first, we found that in parts produced from an older solution, the passivation layer has cracks which are not seen in parts from a fresh/new solution.
Astro Pak provides precision cleaning and passivation services in North America since 1959, with technologies and precision cleaning for the Medical Device, Semiconductor, Laser, Biopharm and other markets.