Podcast
Questions and Answers
Who proposed the concept of a field-effect transistor (FET) in 1926?
Who proposed the concept of a field-effect transistor (FET) in 1926?
- Mohamed Atalla
- Walter Brattain
- John Bardeen
- Julius Edgar Lilienfeld (correct)
Which type of transistor is the most widely used?
Which type of transistor is the most widely used?
- Bipolar junction transistor
- Darlington transistor
- Point-contact transistor
- Metal–oxide–semiconductor field-effect transistor (MOSFET) (correct)
Who invented the first working point-contact transistor in 1947?
Who invented the first working point-contact transistor in 1947?
- Mohamed Atalla and Dawon Kahng
- Nikola Tesla
- Julius Edgar Lilienfeld
- John Bardeen, Walter Brattain, and William Shockley (correct)
How many terminals does a transistor usually have for connection to an electronic circuit?
How many terminals does a transistor usually have for connection to an electronic circuit?
What does a voltage or current applied to one pair of the transistor's terminals control?
What does a voltage or current applied to one pair of the transistor's terminals control?
Which type of charge carriers does a bipolar junction transistor (BJT) use?
Which type of charge carriers does a bipolar junction transistor (BJT) use?
What type of transistor uses only one kind of charge carrier?
What type of transistor uses only one kind of charge carrier?
How do bipolar transistors allow a small current to control a much larger current?
How do bipolar transistors allow a small current to control a much larger current?
What are the regions in a single crystal of material where two p–n junctions are formed in a bipolar junction transistor (BJT)?
What are the regions in a single crystal of material where two p–n junctions are formed in a bipolar junction transistor (BJT)?
What type of integrated circuits rely on the field-effect transistor (FET) instead of bipolar transistors?
What type of integrated circuits rely on the field-effect transistor (FET) instead of bipolar transistors?
Study Notes
Field-Effect Transistor (FET)
- The concept of a field-effect transistor (FET) was proposed in 1926.
Types of Transistors
- The most widely used type of transistor is not specified.
- Bipolar Junction Transistors (BJTs) use both positive and negative charge carriers.
- Unipolar transistors use only one kind of charge carrier.
History of Transistors
- The first working point-contact transistor was invented in 1947 by John Bardeen and Walter Brattain.
Transistor Structure
- A transistor usually has three terminals for connection to an electronic circuit.
- Voltage or current applied to one pair of terminals controls the flow of current between the other two.
Bipolar Junction Transistors (BJTs)
- Bipolar transistors allow a small current to control a much larger current.
- The regions in a single crystal of material where two p–n junctions are formed are called the base, collector, and emitter.
Integrated Circuits
- Some integrated circuits rely on the field-effect transistor (FET) instead of bipolar transistors.
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Description
Test your knowledge about the fundamental concepts of transistors with this quiz. Learn about the role and composition of transistors in electronic circuits.
