Semiconductor materials have gradually replaced vacuum tubes in most of such applications, due to many of their favourable properties such as small size, light weight, low energy consumption, high frequency capability, and high reliability. [Bahan semikonduktor secara beransur-ansur menggantikan tiub vakum dalam kebanyakan aplikasi, kerana banyak sifat yang menguntungkan mereka seperti saiz kecil, ringan, penggunaan tenaga yang rendah, keupayaan frekuensi tinggi, dan kebolehpercayaan yang tinggi.] (i) Discuss the fundamental differences between conductor and insulator in term of electron and conduction of current. [Bincangkan perbezaan asas antara konduktor dan penebat dalam istilah elektron dan pengalihan arus.] (ii) Discuss how the conductivity in pure semiconductors varies with temperature. [Bincangkan bagaimana konduktiviti dalam semikonduktor tulen berubah dengan suhu.] (iii) Compare the depletion region in forward bias and reverse bias. [Bandingkan rantau susutan antara pincang hadapan dan pincang balikan.]

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Question 1
|Soalan 1]
(a)
Semiconductor materials have gradually replaced vacuum tubes in most of such
applications, due to many of their favourable properties such as small size, light
weight, low energy consumption, high frequency capability, and high reliability.
[Bahan semikonduktor secara beransur-ansur menggantikan tiub vakum dalam kebanyakan
aplikasi, kerana banyak sifat yang menguntungkan mereka seperti saiz kecil, ringan, penggunaan
tenaga yang rendah, keupayaan frekuensi tinggi, dan kebolehpercayaan yang tinggi.]
(i) Discuss the fundamental differences between conductor and insulator in term
of electron and conduction of current.
[Bincangkan perbezaan asas antara konduktor dan penebat dalam istilah elektron dan
pengalihan arus.]
(ii) Discuss how the conductivity in pure semiconductors varies with
temperature.
[Bincangkan bagaimana konduktiviti dalam semikonduktor tulen berubah dengan suhu.]
(iii) Compare the depletion region in forward bias and reverse bias.
[Bandingkan rantau susutan antara pincang hadapan dan pincang balikan.]
(iv) Sketch the I-V characteristic graft for ideal diode and semiconductor diode.
[Lakarkan graf ciri I-V untuk diod yang ideal dan diod semikonduktor.]
Transcribed Image Text:Question 1 |Soalan 1] (a) Semiconductor materials have gradually replaced vacuum tubes in most of such applications, due to many of their favourable properties such as small size, light weight, low energy consumption, high frequency capability, and high reliability. [Bahan semikonduktor secara beransur-ansur menggantikan tiub vakum dalam kebanyakan aplikasi, kerana banyak sifat yang menguntungkan mereka seperti saiz kecil, ringan, penggunaan tenaga yang rendah, keupayaan frekuensi tinggi, dan kebolehpercayaan yang tinggi.] (i) Discuss the fundamental differences between conductor and insulator in term of electron and conduction of current. [Bincangkan perbezaan asas antara konduktor dan penebat dalam istilah elektron dan pengalihan arus.] (ii) Discuss how the conductivity in pure semiconductors varies with temperature. [Bincangkan bagaimana konduktiviti dalam semikonduktor tulen berubah dengan suhu.] (iii) Compare the depletion region in forward bias and reverse bias. [Bandingkan rantau susutan antara pincang hadapan dan pincang balikan.] (iv) Sketch the I-V characteristic graft for ideal diode and semiconductor diode. [Lakarkan graf ciri I-V untuk diod yang ideal dan diod semikonduktor.]
(b) Describe and compare the differences between n-type and p-type semiconductor
materials.
[Huraikan dan bandingkan perbezaan diantara bahan semikonduktor jenis-n dan jenis-p.]
(c) Discuss the operation of diodes and explains the THREE (3) type of diode models.
[Bincangkan operasi diod dan terangkan TIGA (3) jenis model untuk diod.]
(d)
Figure 1 shows a diode logic circuit, assume a forward voltage of 0.4V and open
circuit in the reverse bias direction. Identify whether the red LED is ON or OFF
state for the given combination of supply voltage (A and B), as in Table 1.
[Rajah 1 menunjukkan litar logik diod, menganggap voltan ke hadapan 0.4V dan litar terbuka
dalam arah berat sebelah belakang. Kenal pasti sama ada LED merah adalah ON atau OFF
keadaan untuk kombinasi bekalan voltan bekalan (A dan B), seperti dalam Jadual 1.
A
D1
B
D2
R1
Transcribed Image Text:(b) Describe and compare the differences between n-type and p-type semiconductor materials. [Huraikan dan bandingkan perbezaan diantara bahan semikonduktor jenis-n dan jenis-p.] (c) Discuss the operation of diodes and explains the THREE (3) type of diode models. [Bincangkan operasi diod dan terangkan TIGA (3) jenis model untuk diod.] (d) Figure 1 shows a diode logic circuit, assume a forward voltage of 0.4V and open circuit in the reverse bias direction. Identify whether the red LED is ON or OFF state for the given combination of supply voltage (A and B), as in Table 1. [Rajah 1 menunjukkan litar logik diod, menganggap voltan ke hadapan 0.4V dan litar terbuka dalam arah berat sebelah belakang. Kenal pasti sama ada LED merah adalah ON atau OFF keadaan untuk kombinasi bekalan voltan bekalan (A dan B), seperti dalam Jadual 1. A D1 B D2 R1
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