Patent ID: 7067733
Filing Date: 2006-06-27
Classification: H01L

Abstract:
1. A process for producing thermoelectric material, comprising the steps of: a) preparing a liquid raw material for said thermoelectric material; b) quenching said liquid raw material for producing flakes containing crystal grains; c) orienting C-planes of said crystal grains of a crystal structure in a hexagonal system in parallel to a certain direction through a primary solidification to obtain a solid body, wherein said primary solidification is carried out by exerting a first force on said flakes in a first-force-exerting direction parallel to said certain direction; d) after step c), orienting a-axes on said C-planes in parallel to a target direction perpendicular to said certain direction for producing said thermoelectric material by exerting a second force on said solid body in a second force-exerting direction perpendicular to said first force-exerting direction; and e) forming electrodes on a piece of said thermoelectric material in such a manner that said electrodes are spaced from one another in said target direction.