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Which insulating layer used in Fabrication of...

Which insulating layer used in Fabrication of MOSFET?

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+1 vote

asked Nov 16, 2023 in Linear Integrated Circuits by Julian (37.1k points)

Which insulating layer used in Fabrication of MOSFET?

(a) Aluminium oxide

(b) Silicon Nitride

(c) Silicon dioxide

(d) None of the mentioned

I have been asked this question in unit test.

My enquiry is from Fabrication of FET topic in division IC Fabrication of Linear Integrated Circuits

linear integrated circuits
ic fabrication
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1 Answer

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answered Jan 15 by Chris (39.8k points)

The accurate choice is (c) Silicon dioxide

Let me elaborate: Silicon dioxide is used as insulating layer in MOSFET Fabrication. It gives an extremely high input resistance in the order of 10^10 to 10^15 Ω for MOSFET.

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