Semiconductor Power Package With Separate Thermal and Electrical Paths

The patent employs a composite packaging structure combining ceramic substrates with metal thermal-conducting layers. The ceramic substrate provides electrical insulation and structural support, while the metal layers (such as copper or aluminum) provide efficient thermal conduction pathways. This composite approach resolves the contradiction by achieving both manufacturability and superior heat dissipation performance, enabling the package to handle high-power applications effectively.

The patent introduces dedicated thermal-conducting metal layers as intermediary elements between the semiconductor chip and the external environment. These metal layers act as thermal mediators that efficiently transfer heat away from the chip without interfering with electrical signals. This intermediary structure enables effective heat dissipation while maintaining the simplicity of the overall packaging approach.

The patent merges multiple functions into the packaging structure: the ceramic substrate simultaneously provides electrical insulation, mechanical support, and serves as a base for thermal management. The thermal-conducting metal layers are integrated directly into the substrate design, combining structural and thermal management functions. This merging approach enhances heat dissipation while minimizing the increase in device complexity.

The ceramic substrate with integrated metal layers serves multiple purposes: electrical insulation, mechanical support, and thermal conduction. This multi-functional design resolves the contradiction by achieving effective heat dissipation without proportionally increasing complexity, as the same structural elements perform multiple functions simultaneously.