Patent ID: 8216871
Filing Date: 2012-07-10
Classification: H01L

Abstract:
1. A method of fabrication of a thermoelectric module comprising: forming an N-type thin film thermoelectric material layer on a first substrate; forming a first metallization layer on the N-type thin film thermoelectric material layer; etching the first metallization layer and the N-type thin film thermoelectric material layer to form a plurality of N-type thermoelectric material legs; bonding a first electrode assembly to a first portion of the plurality of N-type thermoelectric material legs; removing the first electrode assembly including the first portion of the plurality of N-type thermoelectric material legs from the first substrate; forming a P-type thin film thermoelectric material layer on a second substrate; forming a second metallization layer over the P-type thin film thermoelectric material layer; etching the second metallization layer and the P-type thin film thermoelectric material layer to form a plurality of P-type thermoelectric material legs; bonding a second electrode assembly to a first portion of the plurality of P-type thermoelectric material legs; removing the second electrode assembly including the first portion of the plurality of P-type thermoelectric material legs from the second substrate; and bonding the first electrode assembly including the first portion of the plurality of N-type thermoelectric material legs to the second electrode assembly including the first portion of the plurality of P-type thermoelectric material legs via a flip-chip bonding process to form a thermoelectric module comprising a plurality of thermoelectric devices connected in series.