Semiconductors: Properties and Behavior

FlourishingAcropolis avatar
FlourishingAcropolis
·
·
Download

Start Quiz

Study Flashcards

Questions and Answers

Who discovered that electrical resistivity decreases as temperature increases in silver sulfide?

Michael Faraday

In which material does the resistance decrease as temperature increases?

Silver Sulfide

What is the band called in which most electrons remain bound to the atoms?

Valence Band

What is the name of the highest occupied energy band where most electrons remain bound to the atoms?

<p>Valence Band</p> Signup and view all the answers

Where do the electrons from the valence band go when they enter the conduction band?

<p>Conduction Band</p> Signup and view all the answers

What type of impurity is added in P-type doping?

<p>Boron or gallium</p> Signup and view all the answers

What is the name of the band that accepts the electrons from the valence band?

<p>Conduction Band</p> Signup and view all the answers

What is the effect of adding boron or gallium in P-type doping?

<p>Generates a positive charge in the lattice</p> Signup and view all the answers

What happens when an electron in the lattice is knocked loose from its position in intrinsic Silicon?

<p>It leaves behind a hole and can contribute to a small current flow</p> Signup and view all the answers

What happens when phosphorus or arsenic is added to silicon in N-type doping?

<p>Forms extra electrons in the silicon lattice</p> Signup and view all the answers

What do we create by joining two pieces of semiconductor, one doped n-type and the other p-type?

<p>A diode</p> Signup and view all the answers

What is created around the p-n junction when a depletion zone forms?

<p>A space charge</p> Signup and view all the answers

What happens when a p-n junction is formed?

<p>Extra electrons from the n-region freely diffuse across the junction and combine with holes</p> Signup and view all the answers

What type of conductivity does N-type silicon exhibit?

<p>'Electron' conductivity</p> Signup and view all the answers

What type of conductivity does P-type silicon exhibit?

<p>'Hole' conductivity</p> Signup and view all the answers

What happens when an electron enters the Conduction Band?

<p>It becomes a free electron and can contribute to a small current flow</p> Signup and view all the answers

More Quizzes Like This

Semiconductors
22 questions

Semiconductors

ConvenientSelenium avatar
ConvenientSelenium
Evolution of Microprocessors
10 questions
History of Microprocessors
10 questions
Use Quizgecko on...
Browser
Browser