Industrial Etching
In industry, etching, also known as chemical milling, is the process of using acids, bases or other chemicals to dissolve unwanted materials such as metals, semiconductor materials or glass. This process has been used on a wide variety of metals with depths of metal removal as large as 12mm (0.5 in). Selective attack by the chemical reagent on different areas of the workpiece surfaces is controlled by removable layers of material called masking or by partial immersion in the reagent. It has applications in the printed circuit board and semiconductor fabrication industries. It is also used in the aerospace industry to remove shallow layers of material from large aircraft components, missile skin panels, and extruded parts for airframes.
Read more about Industrial Etching: History, Etch Techniques, Common Etchants, Commonly Etched Metals and Alloys, Etching in The Semiconductor Industry
Famous quotes containing the word industrial:
“... men and women are not yet free.... The slavery of greed endures. Little child workers, the hope of the future, are sacrificed to industry. Young men are sent out by the billion to die for profits.... We must destroy industrial slavery and build industrial democracy.... The people everywhere must come into possession of the earth [second, third, and fourth ellipses in source].”
—Sara Bard Field (1882–1974)