SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor device, in which restrictions are not generated in the dimension of a semiconductor element to be mounted and in which a plurality of all types of semiconductor elements can be mounted. SOLUTION: A semiconductor device 219 or 222 is provided with a wiring board 216, in which a cavity 216a or an opening 216c is formed into a step shape and a plurality of internal semiconductor devices 211 mounted by using the difference of the step shape.