| 摘要 |
The present invention provides a circuit device capable of controlling deformation of a circuit device while preventing an insulating layer from peeling from a substrate. The circuit device includes a substrate, an insulating layer formed on the substrate, a filler filled into the insulating layer, a conductive layer formed on the insulating layer, and a circuit element formed on the conductive layer, wherein an average particle diameter of the filler filled into the insulating layer is controlled so that a Young's modulus of a part of the insulating layer on a substrate side can be smaller than a Young's modulus of a part of the insulating layer on an opposite side relative to the substrate side.
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