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Semiconductor-based electronic components

A semiconductor is a material that in some cases will conduct electricity but not in others. Good electrical conductors, like copper or silver, easily allow electricity to flow through them. Materials that block the flow of electricity, like rubber or plastic, are called insulators. Insulators are often used to protect people from electric shock. As the name implies, a semiconductor does not conduct as well as a conductor.Silicon is the most used semiconductor, but gallium arsenide is also used.