The raw material is known as silicon or Si. It is the second most abundant element in the earth after oxygen. Silicon is mostly found in silica sand or silica stone, but it is also found in natural water, trees, plants, etc. The chemical symbol for silicon is SiO2. It needs to be refined because it is combined with other substances in nature.
Silicon Wafers are formed by cutting ingots into 1mm wafers and then repeatedly grinding, polishing, etching and cleaning them to form a mirror-like smooth surface, which can be used as a substrate material for semiconductor electronic devices.