If you are considering buying your leased car, and reselling it, keep these things in mind: 1  Sales tax can take much of the profit out of the transaction; work to avoid paying double sales tax. 2  Start the buyout process early to allow time to transfer the title and other documents to your name.
etching. 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.he 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 is used in microfabrication to chemically remove layers from the surface of a wafer during manufacturing. Etching is a critically important process module, and every wafer undergoes many etching steps before it is complete.f the etch is intended to make a cavity in a material, the depth of the cavity may be controlled approximately using the etching time and the known etch rate. More often, though, etching must entirely remove the top layer of a multilayer structure, without damaging the underlying or masking layers.