Electronic device

An electronic device, comprising:

• a base made of a ceramic material;
• an electronic device element arranged in a central area of the upper surface of the base, in a way that the electronic device element is placed on a first heat transfer layer made of a metallic material;
• a first heat dissipation layer made of a metallic material, and which is formed in a central area of the lower surface of the base;
• a plurality of thermal vias made of a metallic material and arranged in the base, and which connects the first heat transfer layer and the first heat dissipation layer;
• and
• a second heat transfer layer made of a metallic material and buried in the base, the second heat transfer layer crossing the plurality of thermal vias, while extending from a position above a central area of the lower surface of the base to a position above a peripheral area of the lower surface of the base.