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 ?
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.
Low-density reactive ion etching (RIE), or diode plasma etching, adapted from semiconductor processing is being used by some researchers to meet MEMS application requirements.
Doan and Sailor also discovered that the etching recreated the fine lines used as shading in the dollar bill.
Figure 5a shows a specimen with a fully ferritic matrix after etching with 4% nital.
By exposing silicon wafers to oxygen and then heating them before etching, these electrical engineers changed the range of colors emitted, they report in the Feb.
Hundreds of other chemical reactions occur at the same time, complicating the etching process.
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.
With a value of just under US$400,000, this tool introduces the Advanced Control System (ACS) architecture to a facility with an installed base of other Tegal tools used for etching silicon devices in the production of anti-locking brake sensors.
For gate etching, the AdvantEdge system features an optional integrated Transforma(TM) controller that provides superior repeatability and run-to-run process control, while the EyeD(R) PSM (Process State Monitor) technology enables real-time monitoring of chamber conditions.