| 摘要 |
An electric device includes: first and second electric elements, wherein electric power consumption and operation temperature limit of the first electric element is larger than the second electric element; a substrate made of a rigid flexible board; and a casing that accommodates the substrate with the first and second electric elements. The substrate includes first and second rigid portions and a flexible portion. The first and second electric elements are disposed on the first and second rigid portion, respectively. The flexible portion connects the first and second rigid portions. The thickness of the flexible portion is smaller than the first and second rigid portions. The flexible portion further includes a wiring for electrically coupling the first and second electric elements so that high speed communication is performed between the first and second electric elements.
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