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Electronic Devices and Circuits

Q1:

The threshold voltage of a MOSFET can be lowered by
  1. using thin gate oxide
  2. reducing the substrate concentration
  3. increasing the substrate concentration.
Of the above statement

A 3 alone is correct

B 1 and 2 are correct

C 1 and 3 are correct

D 2 alone is correct

ANS:C - 1 and 3 are correct

Increasing the substrate concentration lowers threshold voltage. Gate oxide layer has no effect an threshold voltage.



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