abstract |
(57) Abstract: Provided is a semiconductor device having a three-dimensional mounting module configuration using a flexible circuit board having a high degree of freedom in layout in which measures for heat radiation in an assembling stage are easy. A mounting area of a flexible circuit board is provided. 1, 112, and 113 mainly include electronic components 121, 122 and 123 are mounted correspondingly. In the flexible circuit board 13, the mounting regions 111 to 113 are arranged above the base region 110 in the order (f1 to f It is configured to be folded in 3). The electronic component 122 is an IC that emits the least heat when operating. The electronic components 122 and 123 are ICs that operate with a greater degree of heat radiation than the electronic component 122. |