CIRCUIT BOARD, ELECTRONIC MODULE, ILLUMINATING DEVICE, AND METHOD FOR MANUFACTURING THE CIRCUIT BOARD

摘要

The present invention relates to a circuit board (100), comprising a base (1) and a heat-conducting layer (3), characterized in that the base (1) has a first region (R1) and second regions (R2) on a surface thereof facing the heat- conducting layer (3), the first region (R1) is provided with a first insulating layer (2.1), respective second region (R2) is provided with a second insulating layer (2.2), and the first insulating layer (2.1) and the second insulating layer (2.2) have different thermal conductivities. In addition, the present invention further relates to an electronic module and an illuminating device comprising such circuit board. The present invention also relates to a method for manufacturing such circuit board.