Etching definition

Etching means defacing, damaging, or destroying hard surfaces by means of a chemical action which uses any caustic cream, gel, liquid, or solution.
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Etching means a chemical reactive process for selectively removing material on a wafer using fluorinated, ionized gases.
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Etching means, in the context of semiconductor manufacturing, a process type that uses plasma-generated fluorine atoms and other reactive fluorine- containing fragments that chemically react with exposed thin-films (e.g., dielectric, metals) or substrate (e.g., silicon) to selectively remove portions of material.”8 The GHGRP defines “plasma etching” slightly differently, as—
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Examples of Etching in a sentence

  • Treat rusty portions with Metal Etching Solution # 71 or approved equivalent.

  • Acid Etching or Shot-Blasting is required on all concrete surfaces prior to application of the Pecora Polyurethane Waterproofing Systems.

  • Treat rusty portions with Metal Etching Solution # 71 or approve equivalent.

  • Nair, “Empirical Modeling of Reactive Ion Etching for Reduction of Variance Via Robust Design, Real-Time Feedback and Run-to-Run Control,” Proc.

  • Grimard, “A Methodology for Feedback Variable Selection for Real-Time Feedback Control Applied to Reactive Ion Etching – Part 1,” IEEE Trans.

  • Grimard, “A Methodology for Feedback Variable Selection for Real-Time Feedback Control Applied to Reactive Ion Etching – Part 2: Applications to Reactive Ion Etching,” IEEE Trans.

  • Except as noted in paragraphs (b) and (c), of this section, the provisions of this subpart apply to plants which perform any of the following six metal finishing operations on any basis mate- rial: Electroplating, Electroless Plat- ing, Anodizing, Coating (chromating, phosphating, and coloring), Chemical Etching and Milling, and Printed Cir- cuit Board Manufacture.

  • Etching and placing adhesives prior to placement of orthodontic brackets.

  • ASTM D4260 Standard Practice for Etching Concrete.ASTM F1869 Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete.SSPC-SP 13/Nace 6 Surface Preparation of Concrete.

  • Surface preparation for metallic coatings – sand blasting, Solvent cleaning, mechanical, pickling, and Etching.


More Definitions of Etching

Etching means the process by which an etching machine or a Dremel tool is used to permanently etch a vehicle’s unique 17-character Vehicle Identification Number (“VIN”) and other identifying information into the surface of a Catalytic Converter in order to identify the Catalytic Converter in the event it is removed from a vehicle.
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Related to Etching

  • PAD means a Preauthorized Debit.

  • Dike means an embankment or ridge of either natural or man-made materials used to prevent the movement of liquids, sludges, solids, or other materials.

  • Blasting means changing the level or grade of land or rendering, tearing, demolishing, moving, or removing earth, rock, buildings, structures, or other masses or materials by seismic blasting or the detonation of dynamite or any other explosive agent.

  • PNode has the meaning set forth in the CAISO Tariff.

  • borehole means a hole sunk into the earth for the purpose of locating, abstracting or using subterranean water and includes a spring;

  • Scaling as used herein, involves:

  • Irrigation means application of water to land areas to supply the water needs of

  • Dewatering means the removal of water for construction activity. It can be a discharge of appropriated surface or groundwater to dry and/or solidify a construction site. It may require Minnesota Department of Natural Resources permits to be appropriated and if contaminated may require other MPCA permits to be discharged.

  • Cutting means to penetrate with a sharp-edged instrument and includes sawing, but does not include shearing, slicing, or punching.

  • Scalping means the situation where the Client opens too many positions in CFDs at the same time and closes them for less than five minutes or buying at Bid price and selling at Ask price, so as to gain the Bid/Ask difference.

  • Uppermost aquifer means the geologic formation nearest the natural ground surface that is an aquifer, as well as lower aquifers that are hydraulically interconnected with this aquifer within the facility's property boundary.

  • Casing means a pipe or tubing of appropriate material, of varying diameter and weight, lowered into a borehole during or after drilling in order to support the sides of the hole and thus prevent the walls from caving, to prevent loss of drilling mud into porous ground, or to prevent water, gas, or other fluid from entering or leaving the hole.

  • Drift means the difference between the zero or span responses of the measurement instrument after and before an emissions test.

  • Trench means 1. below-grade soil treatment area consisting of a shallow excavation with a width of 3 feet or less containing distribution media and one lateral; and 2. excavation for placement of piping or installation of electrical wire or conduit.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Pile means any non-containerized accumulation of solid, nonflowing hazardous waste that is used for treatment or storage and that is not a containment building.

  • Encapsulation means the application of an encapsulant.

  • Pruning means the appropriate removal in accordance with good arboricultural practices of not more than one-third of the live branches or limbs of a tree or more than one-third of the live branches or limbs on a tree as part of a consistent annual pruning program;

  • Loader means any type of off-road tractor with either tracks or rubber tires that uses a bucket on the end of movable arms to lift and move material; can be also referred to as a front-end loader, front loader, skid steer loader, backhoe, rubber- tired loader, or wheeled loader.

  • Infiltration means water other than wastewater that enters a sewer system (including sewer system and foundation drains) from the ground through such means as defective pipes, pipe joints, connections, or manholes. Infiltration does not include, and is distinguished from, inflow.

  • Membrane filtration means a pressure or vacuum driven separation process in which particulate matter larger than 1 micrometer is rejected by an engineered barrier, primarily through a size-exclusion mechanism, and which has a measurable removal efficiency of a target organism that can be verified through the application of a direct integrity test. This definition includes the common membrane technologies of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.

  • Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.

  • Tank means an enclosed space which is formed by the permanent structure of a ship and which is designed for the carriage of liquid in bulk.

  • Connector means a flanged, screwed, welded, or other joined fitting used to connect two pipelines or a pipeline and a piece of process equipment.

  • Gasification means the substoichiometric oxidation or steam reformation of a substance to produce a gaseous mixture containing two or more of the following: (i) oxides of carbon; (ii) methane; and (iii) hydrogen;

  • Exfiltration means any unauthorized release of data from within an information system. This includes copying the data through covert network channels or the copying of data to unauthorized media.