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FAQs on Quick Revision: Semiconductor Electronics - Physics for JAMB

1. What is a semiconductor?
Ans. A semiconductor is a material that has electrical conductivity between that of a conductor and an insulator. It is commonly used in electronic devices due to its ability to control the flow of electrical current.
2. How do semiconductors work in electronic devices?
Ans. Semiconductors work by manipulating the movement of electrons within the material. By adding impurities or applying an electric field, the semiconductor can either allow or block the flow of electrons, enabling the creation of various electronic components like diodes, transistors, and integrated circuits.
3. What are the common applications of semiconductor electronics?
Ans. Semiconductor electronics find applications in various fields such as telecommunications, computing, consumer electronics, and renewable energy. They are used in devices like computers, smartphones, televisions, solar panels, and many more.
4. How are semiconductors manufactured?
Ans. Semiconductors are typically manufactured through a process called semiconductor fabrication or semiconductor manufacturing. This involves several steps including crystal growth, wafer preparation, doping, lithography, etching, and metallization.
5. What are the advantages of using semiconductor electronics?
Ans. Semiconductor electronics offer several advantages over other materials. They provide high-speed operation, low power consumption, compact size, and reliability. They also allow for integration of multiple components on a single chip, leading to the development of advanced electronic devices.
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