A power supply unit of an arc discharge device includes a semiconductor module 1 and a radiator fitted onto the semiconductor module 1. The semiconductor module 1 includes a module casing 2 and common units 3a to 3c retained by the module casing 2. Each of the common units 3a to 3c has: a ceramic substrate 50 having a circuit surface disposed with a semiconductor element 54 and a radiation surface on a side opposite to the circuit surface and a package 35 that exposes the radiation surface and seals the circuit surface with heat resistant resin. The radiator is fitted onto the module casing 2 to be thereby brought into abutting contact with all of the radiation surfaces of the common units 3a to 3c.
申请公布号
US8223496(B2)
申请公布日期
2012.07.17
申请号
US20070451155
申请日期
2007.05.18
申请人
SODA OSAMU;OHNISHI YUJI;INAMI KAZUNORI;UCHIDA TOSHIO;SANSHA ELECTRIC MANUFACTURING CO., LTD.
发明人
SODA OSAMU;OHNISHI YUJI;INAMI KAZUNORI;UCHIDA TOSHIO