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Which semiconductor is most widely used for fabrication of Integrated Circuit?

(a) Germanium, Ge

(b) Gallium Arsenide, GaAs

(c) Silicon, Si

(d) All of the mentioned

I have been asked this question in my homework.

The question is from Basic Planar Process topic in portion IC Fabrication of Linear Integrated Circuits

1 Answer

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by (39.8k points)
Correct answer is (c) Silicon, Si

For a clear picture: Silicon is abundantly available in the form of sand. It is possible to form superior stable SiO2(Which has superb insulating property). Whereas GaAs is more difficult to grow in crystal form and Ge crystal will be destroyed at high temperature.

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