Fundamentals of Semiconductors

What is the primary function of a diode?

• To store electrical energy.

• To allow current to flow in both directions.

• To amplify electrical signals.

• To allow current to flow in one direction only.

Name one common application of diodes.

• Rectifiers

• Capacitors

• Amplifiers

• Transistors

What are the two main types of transistors?

• Operational Amplifiers (Op-Amps) and Diodes

• Integrated Circuits (ICs) and Resistors

• Bipolar Junction Transistors (BJTs) and Field Effect Transistors (FETs)

• Transistor-Transistor Logic (TTL) and Complementary Metal-Oxide-Semiconductor (CMOS)

How does a transistor function as a switch?

• A transistor acts as a switch by using a small input current at the base to control a larger output current between collector and emitter.

• A transistor acts as a switch by connecting the collector and emitter without any input current.

• A transistor operates as a switch by using a high voltage at the base to control a low voltage between collector and emitter.

• A transistor functions as a switch by amplifying the input current directly.

What is the purpose of an operational amplifier?

• To store electrical energy for later use.

• To amplify voltage signals and perform various mathematical operations on them.

• To reduce noise in audio signals.

• To convert digital signals to analog signals.

Describe the basic configuration of an operational amplifier.

• An operational amplifier has two inputs (inverting and non-inverting) and one output.

• An operational amplifier is a type of resistor with no inputs or outputs.

• An operational amplifier only has one input and no output.

• An operational amplifier has three inputs and two outputs.

What are the key properties of semiconductor materials?

• Inflexible bandgap

• Key properties of semiconductor materials include a variable bandgap, temperature-dependent conductivity, the ability to be doped to enhance conductivity, and sensitivity to light.

• High thermal conductivity

• Inability to conduct electricity

How does temperature affect the conductivity of semiconductors?

• Temperature only affects metals, not semiconductors.

• Higher temperatures decrease conductivity in semiconductors.

• Temperature has no effect on conductivity in semiconductors.

• Temperature increases conductivity in semiconductors.

What is an integrated circuit?

• A large electronic device used for data storage.

• A simple resistor used in electrical circuits.

• A type of software program that runs on a computer.

• An integrated circuit is a semiconductor device that combines multiple electronic components into a single chip.

List one advantage of using integrated circuits.

• Limited functionality compared to discrete components.

• Higher manufacturing costs.

• Reduced size and weight of electronic devices.

• Increased power consumption of devices.