Patent ID: 7777126

Claim:
A thermoelectric apparatus, at least comprising: a ring-shaped insulated substrate, having an inner rim, an outer rim, a top surface and a bottom surface, wherein the ring-shaped insulated substrate has a through hole vertically penetrating from the top surface to the bottom surface, and the inner rim abuts the through hole's sidewall, said through hole having an opening abutting the top surface; plural first sets of thermoelectric thin film material pair (TEP), the first sets of TEP disposed on the top surface of the ring-shaped insulated substrate and electrically connected to each other, each first set of TEP including a P-type thermoelectric thin film element (TEE) and an N-type TEE electrically connected to each other, and the N-type TEE of each first set of TEP electrically connected to the P-type TEE of the adjacent first set of TEP; and a first insulation layer, disposed on the top surface of the ring-shaped insulated substrate, and covering the first set of TEP and covering the opening of the through hole; wherein when a current flows through the first sets of TEP orderly along a direction parallel to the surfaces of P-type and N-type thermoelectric thin film elements, a temperature difference is generated between the inner rim and the outer rim of the ring-shaped insulated substrate.