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Semiconductor - Coggle Diagram
Semiconductor
Electrical propoties
semiconductor
Temperature ↑ Resistivity ↓
ρ~10⁰-10⁶Ωm
example
Germanium
Silicon
conductor
ρ~10⁻⁶Ωm
Temperature ↑ Resistivity ↑
example
Nickel
Copper
insulator
Temperature ↑ Resistivity ↓
ρ~10¹²-10¹⁸Ωm
example
rubber
glass
Type
Extrinsic
p-type
doped by group 3 element
holes
Minority : free electron
Majority : holes
n-type
doped by group 5 element
free electrons
Minority : holes
Majority : free electrons
Intrinsic
p-n junction
Depletion layer
current hardly flow through
no carrier
process
carrier try to cross junction
p-type joined with n-type
electric field form → p-n balance
cross charge release electric force
Behavior of carrier
Difussion
doesn't need voltage
carrier move from high - low concentration part
diffusion current
Drift
current flow in the same direction as electric field
drift current
need voltage