Chemical Etching Companies

Chemical etching, sometimes also known as chemical milling, is the process of using various chemicals to dissolve unwanted materials, such as semiconductors, glass, and metals, leaving behind the material in the desired shape. The desired shape is achieved by protecting the material to be left behind with removable masking or masking material that is resistant to etching, forcing the chemical to attack only the exposed material. This form of fabrication has found extensive application in the printed circuit board (PCB) and semiconductor industries, where chemical etching is an important step in microfabrication. The etchants used in this operation are dependant on the material being etched. Hydrofluoric acid is a common etchant used for silica, while sodium hydroxide is used for etching aluminum components. Learn more about chemical etching.

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