1. _______ is sputtered on the whole wafer.
a) silicon
b) calcium
c) potassium
d) aluminium
Explanation: : Aluminium is sputtered on the whole wafer before removing the excess metal from the wafer
2. MOS technology has more load driving capability.
a) true
b) false
Explanation:One of the disadvantages of MOS technology is it has limited load driving capabilities
3. What is the disadvantage of the MOS device?
a) limited current sourcing
b) limited voltage sinking
c) limited voltage sourcing
d) unlimited current sinking
Explanation: MOS devices have limited current sourcing and current sinking abilities
4. What are the advantages of BiCMOS?
a) higher gain
b) high frequency characteristics
c) better noise characteristics
d) all of the mentioned
Explanation: BiCMOS provides higher gain, better noise and high frequency characteristics than MOS transistors
5. What are the features of BiCMOS?
a) low input impedance
b) high packing density
c) high input impedance
d) bidirectional
Explanation: Some of the features of BiCMOS are low input impedance, low packing density, unidirectional, high output drive current, etc
6. BiCMOS has low power dissipation.
a) true
b) false
Explanation: BiCMOS has high power dissipation and CMOS has low power dissipation.
7. BiCMOS is __________
a) unidirectional
b) bidirectional
c) directional
d) none of the mentioned
Explanation: BiCMOS is unidirectional and CMOS is bidirectional.
8. In bipolar transistor, its quality can be improved by __________
a) increasing collector resistance
b) decreasing collector resistance
c) collector resistance does not affect the quality
d) decreasing gate resistance
Explanation:The quality of bipolar transistor can be improved by reducing the collector resistance, which can be done by using the additional layer of n+ subcollector
9. BiCMOS can be used in __________
a) amplifyig circuit
b) driver circuits
c) divider circuit
d) multiplier circuit
Explanation: BiCMOS is more advantageous and improved than CMOS and it can be used in I/O and driver circuits.
10. What are the advantages of E-beam masks?
a) small feature size
b) larger feature size
c) looser layer
d) complex design
Explanation: The advantages of E-beam masks are it has tighter layer to layer registration and it has smaller feature sizes