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公开(公告)号:US5316831A
公开(公告)日:1994-05-31
申请号:US879009
申请日:1992-05-06
CPC分类号: H05K7/20509 , H05K1/056 , H05K1/0366 , H05K1/189 , H05K2201/0187 , H05K2201/0209 , Y10S428/901 , Y10T428/24917 , Y10T428/24926
摘要: A metallic printed board having layers including a metallic plate, an electric insulating layer and a metallic film, includes a plurality of insulating regions in the electric insulating layer. The insulating regions have different dielectric or thermal properties and are formed of a number of kinds of electric insulating materials having the different dielectric or thermal properties respectively. The insulating regions are arranged on an identical plane surface of the metallic plate.
摘要翻译: 具有包括金属板,电绝缘层和金属膜的层的金属印刷电路板在电绝缘层中包括多个绝缘区域。 绝缘区域具有不同的电介质或热性能,并且分别由具有不同介电性或热性质的多种电绝缘材料形成。 绝缘区域布置在金属板的同一平面上。