An example of directional etching for nanohole arrays of less than 500nm in diameter. (Image: A*STAR Institute of Materials Research and Engineering) Wet etching can be classified into two main types ...

PCB etching methods generally fall into one of two broad categories: wet and dry processes. For the home gamer, dry processes would include methods like milling out traces with a CNC router ...

Both capacitively (RIE) and inductively (ICP) coupled plasma etcher with fluorine-based gases (CF4, CHF3, C4F8, SF6), BCl3, nitrogen, argon, and oxygen for anisotropic dry etching of Si-based ...