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Which of the following is most difficult to fabricate in IC?

Which of the following is most difficult to fabricate in IC? Correct Answer Capacitor

Concept:

In IC fabrication it is difficult to fabricate capacitors due to the following reasons:

  • A large area is required on the chip for a large value of the capacitor (in mF or μF).
  • Leakage problem because dielectric is present between the plates of the capacitor.
  • The speed of operation is reduced because the capacitor is an energy storage device.
  • The cost of fabrication increased.

 

Fabrication of semiconductor device on the IC chip is more reliable because most of the semi-conductor devices are made-up of by silicon (Si)

Examples: Diode, Transistor, FET, MOSFET, CMOS

Resistors can also be fabricated on IC’s easily because it can be made by the semiconductor material.

 

Important Points

1) The small value of capacitors (in pF) can be fabricated on IC.

2) VLSI technology is used in the IC fabrication process.

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