Wafer scale thermoelectric energy harvester

An integrated circuit, comprising:

• a substrate;
• a plurality of p-type and n-type thermoelectric elements disposed above the substrate and connected in series while alternating between the p-type and the n-type thermoelectric elements;
• and
• a cap above the substrate to enclose the thermoelectric elements between the cap and the substrate.

A thermoelectric energy harvester, comprising:

• a substrate;
• an array of thermoelectric couples disposed above the substrate and connected in series via interconnects, each thermoelectric couple including a first element of a p-type material and a second element of an n-type material, the first element and the second element coupled via the interconnect at one end;
• and
• a dielectric provided between the first elements and the second elements to electrically isolate the first and the first elements and the second elements.