Circuit module and manufacturing method thereof

摘要

A circuit module includes an electronic component, a ceramic multilayer substrate and a resin wiring substrate. The ceramic multilayer substrate is provided with a wiring layer disposed on top thereof and a cavity in which the electronic component is mounted, wherein a space between the electronic component and the cavity is filled with a thermosetting resin and a surface of the filled cavity is planarized. The resin wiring substrate has an insulating adhesive layer disposed at one side thereof and provided with at least one opening filled with a conductive resin. The ceramic multilayer substrate and the resin wiring substrate are bonded by the insulating adhesive layer, and the wiring layer on the ceramic multilayer substrate is electrically connected with the conductive resin.