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Wet Etching

Wet etching refers to processes that use liquid chemicals to remove materials from samples. Important considerations for wet etching processes are the isotropic nature of the etch and it's impact to your desired pattern, the selectivity (ratio of etch rates between materials you want to remove and other materials that will be exposed to the etchant), and chemical safety. When selecting which equipment to use, you will need to consider the type of chemical, the size and shape of your sample, and the Cleanliness (formerly known as Contamination) group. 

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