| 摘要 |
A semiconductor device including a substrate, a semiconductor chip mounted on the substrate, and an encapsulation resin encapsulating the semiconductor chip, wherein the encapsulation resin contains a first resin region composed of a first resin composition, a second resin region composed of a second resin composition, and a mixed layer formed between the first resin region and the second resin region so as to have the first resin composition and the second resin composition mixed therein is provided.
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