Chips are mainly composed of silicon.
Silicon is an atomic crystal, insoluble in water or nicotinic acid, with a metallic luster on its surface. Crystals, opals, agates, and quartz all contain silicon, and the silicon used to make chips comes mainly from quartz sand. The silicon is made into wafers, and then ions are added to the semiconductor to make the chip, and the whole process requires high precision and technology.
Chip characteristics
A chip is made of hundreds of microcircuits connected together, the volume is very small, the chip's manufacturing transition from copper process is now silicon process, TSMC's most advanced 5 nm process, has begun to verge on the limit, and may be pushed forward to 3 nm.
The reason why it is called a chip is because "chip" is its shape, and "core" is that this thing is the heart, brain, center of the electronic device, so it is called a chip. But it is because of this name, may let a lot of people have a misunderstanding of the chip, that only like the computer CPU kind is a chip. In fact, the CPU belongs to the logic chip, can do logic control, arithmetic function.