Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 2 (Q.No. 28)

Electronic Devices and Circuits

28.

Assertion (A): Silicon is preferred over germanium in manufacture of semiconductor devices.

Reason (R): Forbidden gap in silicon is more than that in germanium.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not a correct explanation of A

A is true but R is false

A is false but R is true

Answer: Option

Explanation:

Wider forbidden gap in silicon makes it less sensitive to temperature than germanium.

Discussion:

3 comments Page 1 of 1.

Anurag bajpai said: 9 years ago

I think the option will be B because the main reason is as silicon is abundant in the earth.

Abhi said: 8 years ago

Silicon is more sensitive to temp than germanium. Main reason for using silicon is SiO2 and its abundance.

Aman Kumar Yadav said: 8 years ago

Silicon (Si) = 1.11eV.
Germanium (Ge) = 0.67 eV.

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