Patent ID: 9293446
Filing Date: 2016-03-22
CPC Classification: H01L

Claim Text:
1. A module in which components are mounted on both of main surfaces of a wiring substrate, comprising: a first component layer provided on one main surface of the wiring substrate and comprising only a semiconductor substrate as a component mounted face down on the one main surface; and a second component layer provided on another main surface of the wiring substrate and comprising a plurality of components mounted on the other main surface; wherein a thickness of the first component layer is smaller than a thickness of the second component layer, the first component layer includes a first resin layer provided on the one main surface and covering side surfaces of the semiconductor substrate such that a back surface of the semiconductor substrate on the one main surface of the wiring substrate is exposed, the second component layer includes a second resin layer provided on the other main surface and covering each of the plurality of components on the other main surface of the wiring substrate, and a linear expansion coefficient of a resin forming the first resin layer is larger than a linear expansion coefficient of a resin forming the second resin layer.