Capacitor structure, switch structure, and capacitor array and electronic device including the same

A capacitor array comprising:

• a plurality of capacitors connected between a first terminal and a second terminal;
• and
• at least one switch between two adjacent capacitors among the plurality of capacitors,
• wherein each capacitor of the plurality of capacitors comprises:
• an outer well having a first conductivity type;
• a first well in the outer well and having a second conductivity type;
• a second well in the first well and having the first conductivity type;
• and
• a first electrode and a second electrode, at least portions of the first electrode and the second electrode on the second well, and
• wherein the second well of each capacitor of the plurality of capacitors is electrically isolated from other second wells of other capacitors of the plurality of capacitors.

An electronic device comprising:

• at least one capacitor,
• wherein the at least one capacitor comprises:
• a semiconductor substrate comprising an outer well having a first conductivity type;
• a first well in the outer well and having a second conductivity type;
• a second well in the first well and having the first conductivity type;
• a first electrode and a second electrode, at least portions of the first electrode and the second electrode contacting the second well;
• a first choke impedance element connected between the second well and a ground voltage;
• and
• a second choke impedance element connected between the first well and a power supply voltage.