What Goes on in these laboratories is referred to as deep reactive-ion etching (DRIE). To start, a smooth silicon wafer, paying homage to Terminator 2’s T-1000 in liquid kind and comprised of two levels of mono-crystalline silicon using an oxide layer in between, is roofed by using a photoresist – https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/