chemical etching

chemical etching

[′kem·i·kəl ′ech·iŋ]
(metallurgy)
Formation of characteristic surface features when a polished metal surface is etched by suitable reagents.
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Fabricators use a photographic process followed by chemical etching to obtain the correct pattern of traces on both sides of the panel.
The following process, which takes place at the far end of the line in tank 8, is the removal in a mix of nitric acid and hydrofluoric acid of alloying elements on the surface of components, especially of castings, that remain after chemical etching.
PTFE Liner (Thin Film) with & without chemical etching (10 micron), over mandrel
Before the metal coating can be applied, a chemical etching process is performed to activate the surface of the polymer.
Tech-Etch provides the photo chemical etching of titanium.
For example, circuitry can be printed directly onto flexible film (photo) without the multiple steps, chemical etching, and hazardous waste production of photolithography used to make PC boards.
Chemical etching is a simple and cost effective method to produce the micro scale roughness.
There are different - and sometimes better - ways to reach the goal: Normal thin protective glass film and some FPS (fingerprint sensor) covers are often produced by using chemical etching technologies.
According to Jezek (1932), the concentration of the etching fluid, temperature and duration of the experiment represent controlling factors during chemical etching.
Advanced Chemical Etching (ACE), which offers precision metal components, prototyping and low volume products, has used its additional capacity to win a string of domestic and international orders from clients involved in the aerospace and medical sectors.
Smoothing the sidewalls through oxidation and chemical etching prior to gold sputtering ensured a complete coating during gold sputtering.
AIT says its temporary bonding media has been proven useful in all of the four primary methods for wafer thinning: mechanical grinding, chemical mechanical polishing (CMP), wet etching and atmospheric downstream plasma (ADP), and dry chemical etching (DCE).

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