| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem wherein electromagnetic shielding effect is deteriorated, since the distance between an electromagnetic shielding panel and a relay terminal is increased, when a breakdown voltage is secured between both of the members in a power module provided with a power semiconductor device is provided with the electromagnetic shielding panel for cutting-off electromagnetic noise produced during switching operation of the power semiconductor device. SOLUTION: By interposing an insulating material between the electromagnetic shielding panel and the relay terminal, the breakdown voltage force between both of the members become strong, and as a result, the distance between both the members can be reduced, so that the electromagnetic shielding effect is improved. COPYRIGHT: (C)2004,JPO |
