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Smallest capacitor in size

Engineering Asked by iuyhj on September 2, 2021

What is the smallest capacitor in size, which has been engineered and how much is it’s capacitance? I presume it must be something etched on chip.

One Answer

You can create caps with values down to 10fF or less (that's femto-farads) with size about 1 micron squared, but whether they are useful depends on the amount of stray capacitance in the rest of the chip wiring.

Answered by alephzero on September 2, 2021

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