Electronic device including conductive element on side surface of substrate

An electronic device, comprising:

• a first substrate, wherein the first substrate has a top surface and a first side surface;
• a second substrate oppositely disposed on the first substrate, wherein the second substrate has a second side surface parallel to the first side surface;
• a first conductive element disposed on the top surface of the first substrate;
• a second conductive element disposed on the first side surface of the first substrate and on the second side surface of the second substrate;
• and
• a third conductive element disposed on the top surface of the first substrate and disposed on the first conductive element,
• wherein the third conductive element contacts the first conductive element to define a first contact area, the third conductive element contacts the second conductive element to define a second contact area, and the first contact area is greater than the second contact area,
• wherein the first conductive element contacts the second conductive element to define a third contact area, and the second contact area is greater than the third contact area.