SEMICONDUCTORS AND LOGIC GATES

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Semiconductors
And
Logic
Gates
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, Valium tubes and semi conductor devices
Topic
-


:


Vaccumtubes Semiconductor devices

I Direct
of
"
Directhof current current

↓ ↓
Unidirectn Bidirectn

Operate invaccum No
rigid
vaccum .
requirement of
µ power consumption
→
High Powerconsumpth -


low


Output how
Highly efficient
:


µ

low
Efficiency
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, Conductors Semi conductors and Insulators
Topic
-
:
: .




Conductors semi conductors
-
Insulators
f ↓

Resistivity I Po<P< Pi Resistivity ↑
conductivity ↑ Oc > 0 > Oi Conductivity ↓ .




↓
allows the -440W itpnestrictsthe
it's behaviour
flow of
depends on the currents .




one
using
it .




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, :| :| : ÷÷::÷
Conductors semi conductors -
Insulators


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÷ :i÷÷÷ :÷÷:÷
Energy gap -0 Egs3eV Eg > 3eV
off
c④
•
Even at the -11200mi
v④ C④ many
e- will
gain every
Egtomakethe ④ difficult
jump .




Valence Band electrons
# Jump
-




these electrons
will lead to conductivity conduct Band

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