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MOSCAP (MOS Capacitor)

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syeda amna

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hi
What is MOSCAP?
Please explain me accumulation depletion and inversion mode.
Any practical use of MOSCAP?
 

eklikeroomys

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Its your lucky day, I just read this information last night!
A MOS CAP is basically a transistor without the DRAIN and SOURCE connections. This means that it has a GATE connection and a BODY seperated by a thin layer of insulating oxide, therefore, a CAP.

The operation of the moscap is illustrated by the image from wikipedia.

90_1305622605.gif
 

yadavvlsi

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syeda amna

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Thanks for your replies.I have some confusions in accumulation depletion and inversion modes. Why depletion region is wide at high frequency? What is the effect of low frequencies?
Please give some explanation.
 

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