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EE‐110 Electronic Devices
Syed Hassan Raza Naqvi
Course outcome 1st topic
• To understand the semiconductor materials
th t
it bl
f
l
t
i d
i
a are su a e or e ec ron c ev ces
• To study the properties of materials for
electronic devices
• To understand the biasing of diode
• Able to design Diode circuit
• Able to apply some types of diodes
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Assessments/Books
• Tests 2.5%
• Assignment 2.5%
• Mid Term 15%
• Lab 20%
• Examination 60%
Text books: Electronic devices and circuit
theory by Robert L. Boylestad and Louis
Nashelsky
• Semiconductors are a special class of elements
having a conductivity between that of a good
Semiconductor Material
conductor and that of an insulator.
• They are fall into two classes : single crystal
and compound
• Single crystal e.g Ge and Si
• Compound e.g GaAs , CdS, GaN and GaAsP
Ge-germanium; Si-silicon; Ga-gallium ;As –arsenide; Cd-cadmium; S-
sulfide; N-nitride; P-phosphide
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Group →
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
↓ Period
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
*
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
**
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Uub
113
Uut
114
Uuq
115
Uup
116
Uuh
117
Uus
118
Uuo
* Lanthanides
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
** Actinides
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
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Historical
• Diode , in 1939 was using Ge
• Transistor in 1947 was using Ge
,
•
In1954 Si was used in Transistor because Si is less temperature
sensitive and abundantly available.
• High speed transistor was using GaAs in 19