MULTI-PHASE INVERTER MODULE

摘要

PROBLEM TO BE SOLVED: To provide a multi-phase inverter module having the excellent cooling characteristic of a built-in semiconductor element by improving electromagnetic wave noise shielding performance while suppressive an increase in cost.

SOLUTION: In the multi-phase inverter module in the two-story structure of a power semiconductor element 24 and a wiring board 27, electromagnetic wave noise is effectively shielded to provide the excellent heat radiation of a wiring board 27 through by the utilization of the excellent electrical conductivity and excellent thermal conductivity of a side wall 213, by providing the side wall 213 totally surrounding the power semiconductor element 24 to a metal member 21 for a cooling element formed as a so-called heat sink.

COPYRIGHT: (C)2004,JPO