Electric circuit for use in inverter of electric compressor, has metal substrate comprising non-embedded part on which dielectric material layer is absent, where part is connected to terminal of electric component by fusion of material

摘要

The circuit (104) has a metal substrate (202) made of aluminum, and a dielectric material layer (206) extended on a first part of the metal substrate, where the dielectric material layer is made of ceramics. The metal substrate includes a second part i.e. non-embedded part (302) on which the dielectric material layer is absent. The second part of the metal substrate is connected to a terminal of an electric component (210) by fusion of material. A metal track made of copper, is extended on the dielectric material layer.