etchant
etching reagent

The first is over etching, which means the etchant was applied too long.

The etchant may not be permitted to spread in the horizontal plane.

The width of feature produced is controlled by etchant and time.

Developer or etchant may be too strong, undermining narrow sections.

Then the board is put in an etchant.

An etchant dissolves the copper that is not covered by the covering.

The etchant removes copper on all surfaces exposed by the resist.

The salt is used in etchant for glass.

A test piece may be made with etching times noted, as the strength of the etchant will vary.

You can use this time to prepare the developer etchant etc., or carry out any other tasks.

Resist is an ink that resists the etchant used to make the circuit board.

The long shelf life of this etchant allows the solution to be stored in large quantities.

Fluorine is the main etchant in the silicon etching process.

To overcome this problem an anisotropic etchant is used.

The resist protects the non-image areas of the cylinder from the etchant.

It finds increasing use as an etchant in microelectronics.

Etchant may be exhausted:- dispose of safely and renew.

Etchant is generally removed with a wash of clear, cold water (although other substances may be used in specialized processes).

FeCl3 is a standard copper etchant for making printed circuit boards!

It is an anisotropic etchant of silicon, exposing octahedral planes.

An etchant (sometimes mordant) is any chemical used to etch, but probably refers to an industrial process.

Hexafluoroethane is used as a versatile etchant in semiconductor manufacturing.

Etchant dissolves the copper on the board.

The etchant may be a corrosive liquid or a chemically active ionized gas, known as a plasma.

The wafer can be immersed in a bath of etchant, which must be agitated to achieve good process control.