Today, some existing etch tools can perform selective etches to one degree or another ... The radicals become the species that performs the chemical etching in a plasma etch system. These free ...

and when he got the urge to do some etching recently, he realized that he was fresh out of “Ferret Chloride and Bureaucratic Acid*.” Undeterred by his empty chemical cabinet, he poked around ...

Further experiments showed that the patterns arise from chemical reactions that are coupled ... Next, the researchers placed a drop of mild etching solution onto the surface and dried it overnight ...