Patent ID: 11948854
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic component comprising:
a substrate including two principal surfaces with a first principal surface being opposite to a second principal surface;
a functional portion that is located on the first principal surface of the substrate and generates heat during operation;
a plurality of external connection conductor portions located directly on the first principal surface of the substrate or located below the first principal surface without direct contact with the substrate;
a first heat-conducting portion located directly on all or a portion of a first region of the second principal surface of the substrate or located over all or a portion of the first region without direct contact with the substrate, the first region not overlapping the functional portion when viewed in plan in a thickness direction of the substrate, a thermal conductivity of the first heat-conducting portion being higher than a thermal conductivity of the substrate; and
a second heat-conducting portion that is located directly on a region that is a portion of the second principal surface of the substrate and including at least a portion of a second region of the second principal surface or is located over the region without direct contact with the substrate, the second region coinciding with the functional portion when viewed in plan in the thickness direction of the substrate, the second heat-conducting portion being discretely spaced away from the first heat-conducting portion when viewed in plan in the thickness direction of the substrate, a thermal conductivity of the second heat-conducting portion being higher than the thermal conductivity of the substrate; wherein
each of the first heat-conducting portion and the second heat-conducting portion is located closer to the second principal surface of the substrate than to the first principal surface of the substrate in the thickness direction of the substrate; and
when viewed in plan in the thickness direction of the substrate, a region that is a portion of the second principal surface of the substrate and located between the first heat-conducting portion and the second heat-conducting portion is not overlaid with a heat-conducting portion with a thermal conductivity higher than the thermal conductivity of the substrate.