etching


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Related to etching: Plasma etching

etching

 [ech´ing]
the cutting of a hard surface such as metal or glass by a corrosive chemical, usually an acid, in order to create a design.
acid etching etching of dental enamel with an acid in order to roughen the surface, increase retention of resin sealant, and promote mechanical retention.

etching

[ech′ing]
the cutting of a hard surface, such as metal or glass, by a corrosive chemical, usually an acid, to create a design.

etching,

n a process used to decalcify the superficial layers of enamel as a step in the application of sealants or bonding agents in preventive dentistry and orthodontics. The agent of choice is phosphoric acid in concentrations of 30% to 40%.

etching

References in periodicals archive ?
Hundreds of other chemical reactions occur at the same time, complicating the etching process.
Figure 6c shows the effect of etching this specimen with alkaline sodium picrate, which colors the large cementite brown.
These results strengthen the idea that hydrogen -- which links with silicon during etching -- plays an important role in a wafer's optical properties, says Reuben T.
Some of the etchings achieve the size of paintings, while some of the paintings are smaller than the largest etchings.
Unfortunately, it is impossible to closely define etching times, as the correct etch time and depth must be determined empirically and will vary with examination magnification.
Doan and Sailor also discovered that the etching recreated the fine lines used as shading in the dollar bill.
The etching process can turn a cheap lens into a high-performance optical element.
We selected Aviza for our deep silicon etching because they were able to demonstrate the high aspect ratio features to meet our manufacturing requirements, while maintaining superior critical dimension (CD) control and uniformity.
The AdvantEdge Metal system helps customers extend aluminum interconnect technology below today's 90nm dimensions, with dramatically improved etching precision and higher productivity," said Tom St.
We have been working with several types of high-K materials for many years and have unique, patented technology to address the many problems encountered in the etching of these devices.
Introduced in 2003, the Applied Centura Enabler Etch system features a novel high-frequency source and decoupled plasma design to provide broad tunability for etching the entire range of dielectric films used in the interconnect, including low k and FSG films.
The system offers short cycle time, versatility and high process performance in a small footprint for hydrophobic surface preparation, precision wet etching, megasonic energy-assisted cleaning and nitride etch-back and stripping.