What Goes on in these laboratories is called deep reactive-ion etching (DRIE). To start out, a smooth silicon wafer, reminiscent of Terminator two’s T-1000 in liquid kind and created from two levels of mono-crystalline silicon with an oxide layer between, is roofed by using a photoresist – a lightweight-delicate substance https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/