HEAT-RADIATING SUBSTRATE AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A heat-radiating substrate and a manufacturing method thereof are provided to rapidly dispose of heat which is generated from a heating device by using aluminum as a core metal layer and alumina as a core insulating layer. CONSTITUTION: In a heat-radiating substrate and a manufacturing method thereof, a core layer(110) comprises a core metal layer(111) and a core insulating layer(112). The core layer is comprised of a first region and a second region. A circuit layer(120) is formed in the first region of the core layer. A build-up layer(130) is formed in the second region of the core layer and includes the build-up insulating layer(131) and a build up circuit layer(132). The core insulating layer is formed by oxidizing the core metal layer. The circuit layer is formed in both sides of the core layer and includes a via electrically connecting the circuit layer.