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Which insulating layer used in the fabrication of MOSFET?(a) Aluminium oxide(b) Silicon Nitride(c) Silicon dioxide(d) Aluminium NitrateI have been asked this question in examination.The question is from MOS Digital Integrated Circuits in section Logic Families of Digital Circuits

Answer»

The correct choice is (c) Silicon dioxide

Explanation: Silicon dioxide is USED as an insulating layer in the fabrication of MOSFET. It GIVES an EXTREMELY high input RESISTANCE in the order of 10^10 to 10^15 Ω for MOSFET.



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