Methods of forming ferroelectric capacitors on protruding portions of conductive plugs having a smaller cross-sectional size than base portions thereof

   
   

Ferroelectric capacitors, etc. are disclosed that include a conductive plug that has a base portion of a first cross-sectional width and a protruding portion that protrudes from the base portion and has a second cross-sectional width that is less than the first cross-sectional width. A conductive layer of the ferroelectric capacitor is on the protruding portion opposite the base portion. Related methods are also disclosed.

 
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