CIRCUIT STRUCTURE

摘要

Provided is a circuit structure capable of suppressing worsening of radiation properties that is caused by a cavity caused by a protrusion being formed that enters inside an opening formed in a substrate. Also provided is a production method whereby this kind of circuit structure can be easily produced. The circuit structure 1 has: a protrusion 21 formed in a conductive member 20, said protrusion 21 entering inside an opening 12 formed in a substrate 10 and having a terminal 33 of an electronic component 30 connected thereto; a cavity 22 that occurs as a result of the formation of the protrusion 21 and is covered by a base member 90 that supports the conductive member 20; and a buried member 40 having higher thermal conductivity than air, provided inside the cavity 22.