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Why is silicon commonly used as the material for integrated circuits?
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The development of screen-printable electronic ink for flexible electronics.
Silicon is the most widely used material for integrated circuits due to its abundance, cost-effectiveness, and superior physical properties compared to early alternatives like germanium.12
Key reasons for its dominance include:
- Thermal Stability: Silicon devices maintain their semiconducting properties at significantly higher temperatures than germanium, allowing for more reliable operation in diverse environments.2
- Insulation Properties: A critical advantage of silicon is its ability to form a high-quality, tenaciously adhering layer of silicon dioxide when heated in the presence of oxygen. This oxide film serves as an excellent electrical insulator and a vital mask during the photolithographic manufacturing process, enabling the creation of complex, tiny electronic components.123
- Performance: Silicon devices exhibit much lower leakage currents than those made from other early semiconductor materials, which is essential for the efficiency and stability of modern microprocessors.14
Because of these factors, silicon technology has become highly advanced, accounting for more than 95 percent of all semiconductor products sold globally.14