What Goes on in these laboratories is referred to as deep reactive-ion etching (DRIE). To begin, a sleek silicon wafer, reminiscent of Terminator two’s T-1000 in liquid sort and made from two levels of mono-crystalline silicon with an oxide layer between, is covered using a photoresist – a light-weight-delicate substance https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/