Linear Integrated Circuits Questions and Answers
Q1.
How to obtain silicon ingots of 10-15cm diameter?
Answer :
By crystal pulling process
Q2.
For photographic purpose usually coordinatograph is preferred for artwork because,
Answer :
1. It is a precision drafting machine
2. Cutting head can be positioned accurately
3. It can be moved along two perpendicular axes
Q3.
The major disadvantage of PN-junction isolation technique is:
Answer :
Formation of Parasitic Capacitance
Q4.
Which semiconductor is most widely used for fabrication of Integrated Circuit?
Answer :
Silicon, Si
Q5.
Which is the most striking feature in monolithic integrated circuit transistor?
Answer :
Collector contact is present at the top of IC
Q6.
At what potential, the substrate of a vertical pnp transistor should be kept to attain good isolation?
Answer :
Negative potential
Q7.
The number of leads in schottky barrier diode are
Answer :
Two
Q8.
Which of the following resistor is not used as an integrated resistor?
Answer :
Poly gate resistor
Q9.
The capacitance of junction capacitor does not depend upon
Answer :
Impurity concentration of p-type epitaxial layer
Q10.
In application such as RF and IF circuits, inductor cannot be avoided. How to manage such situation?
Answer :
1. Using inductors external to IC package
2. Thin film inductor spiral are used
3. Thin film hybrid microwave can be used
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