Invention Grant
US08254144B2 Circuit board laminated module and electronic equipment 失效
电路板层压模块和电子设备

Circuit board laminated module and electronic equipment
Abstract:
A circuit board laminated module includes: a first circuit board having a multi-layer structure in which ground layers are provided in a plurality of layers; a second circuit board mounted on the first circuit board; and a semiconductor chip mounted on the second circuit board, wherein in the first circuit board, a noise guiding through via which guides an electromagnetic noise generated in the semiconductor chip to a lower layer side is provided on a side different from a circuit portion or a circuit element desired to be protected against influence of the electromagnetic noise in a surrounding direction of an occurrence place of the electromagnetic noise.
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