Electrochemically controlled capillarity to dynamically connect portions of an electrical circuit

A method comprising:

• providing a capillary comprising a side surface forming an annular cylinder, wherein at least one electrode extends through the side surface;
• inserting the capillary into a through hole of a printed circuit board (PCB) such that a first portion of the at least one electrode is electrically connected to a conductive layer in the PCB;
• injecting a eutectic conductive liquid and an electrolyte into an aperture formed by the side surface, wherein at least one of the eutectic conductive liquid and the electrolyte contacts a second portion of the at least one electrode;
• disposing a negative electrode at a first end of the capillary and a positive electrode at a second end of the capillary opposite the first end;
• and
• sealing the capillary after the capillary is inserted into the through hole so that the eutectic conductive liquid and the electrolyte are contained within the aperture formed by the side surface.