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 ...

Dry etching methods are all anisotropic processes; that is, they direct copper removal in a single direction and avoid the risk of undercutting. Wet methods, all of which rely on chemical ...

Etchers and etching machines, also known as chemical milling machines, use masking substances to protect some surface areas of the part, providing selective material removal or patterning. Etching is ...