Patent ID: 8198116
Filing Date: 2012-06-12
Classification: H01L

Abstract:
1. A method for fabricating a thermoelectric device, comprising: placing a first electrode in a die; forming a first interlayer on an upper surface of the first electrode; positioning a separating plate on an upper surface of the first interlayer to divide an inner space of the die into a plurality of cells, and depositing a first thermoelectric material on the first interlayer within a first fraction of the cells, and depositing a second thermoelectric material on the first interlayer within a second fraction of the cells, wherein the first thermoelectric material comprises n-type thermoelectric material selected from n-CoSb3, n-PbTe and n-Zn4Sb3, and the second thermoelectric material comprises p-type thermoelectric material selected from p-CoSb3, p-PbTe and p-Zn4Sb3 forming a second interlayer on the first thermoelectric material and the second thermoelectric material; forming a second electrode on the second interlayer; sintering the die contents; and removing the separating plate after sintering to obtain a π shaped thermoelectric device, wherein after the r˜shaped thermoelectric device is obtained, welding a plurality of˜shaped thermoelectric devices to a copper-coated ceramic plate to form an entire body.