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Analog
Semiconductors
24
Engineering
Professional
10/13/2008

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Cards

Term
________ are elements whose electrical conductivity is between that of a conductor and an insulator.
Definition
Semiconductors
Term
How many electrons are in the valence shell of a semiconductor?
Definition
4
Term
What are the two most common elements associated with semiconductors?
Definition
Silicon and Germanium
Term
Semiconductors are known as ______ controlled devices.
Definition
Current
Term
What types of flow occur in a semiconductor?
Definition
Electron flow and Hole flow
Term
What is another name for hole flow?
Definition
Conventional Flow
Term
What is the knee voltage of Silicon?
Definition
600mV
Term
What is the knee voltage of Germanium?
Definition
300mV
Term
________ is the addition of impurities into pure semiconductor material.
Definition
Doping
Term
An element which contains 5 electrons in its valence shell is called ________
Definition
Pentavalent
Term
An element that contains 3 electrons in its valence shell is called _____
Definition
Trivalent
Term
______ is where P and N type material are physically joined.
Definition
PN Junction
Term
The neutral zone which creates a barrier that prevents electron flow is known as?
Definition
Depletion Zone
Term
________ is applied external DC voltage?
Definition
Bias
Term
What are the two types of transistors?
Definition
BJT (Bi-polar Junction Transistor) and FET (Field Effect Transistor)
Term
Three components of a transistor are _________
Definition
Collector, Emitter, Base
Term
What are the two types of BJT Transistors?
Definition
NPN and PNP.
Term
What is the standard designator for a transistor?
Definition
Q
Term
_______ means the transistor is properly biased, operating, and is ready to be used as a controlling circuit.
Definition
Quiescence
Term
_______ is the condition where the transistor acts like a closed switch.
Definition
Saturatin
Term
What percentage of current goes through the: Conductor, Insulator, and Emitter.
Definition
Conductor (95-98%), Base (2-5%), Emitter (100%)
Term
The emitter is _______ doped.
Definition
Heavily
Term
The collector is ________ doped.
Definition
moderately
Term
The base is _______ doped.
Definition
Lightly
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