Patent ID: 11864307
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A printed circuit board comprising:
a first substrate portion including a plurality of first insulating layers, a plurality of first wiring layers respectively disposed on the plurality of first insulating layers, and a plurality of first adhesive layers respectively disposed between the plurality of first insulating layers to respectively cover the plurality of first wiring layers; and
a second substrate portion disposed on the first substrate portion, and including a plurality of second insulating layers, a plurality of second wiring layers respectively disposed on the plurality of second insulating layers, and a plurality of second adhesive layers respectively disposed between the plurality of second insulating layers to respectively cover the plurality of second wiring layers,
wherein a dissipation factor of each adhesive layer of the plurality of first adhesive layers is lower than a dissipation factor of each adhesive layer of the plurality of second adhesive layers,
the plurality of first insulating layers comprise a core layer,
a portion of the plurality of first wiring layers is disposed on one side of the core layer,
remaining portions of the plurality of first wiring layers are disposed on the other side of the core layer, opposite to the one side of the core layer, and
two of the plurality of first wiring layers are respectively disposed on opposing surfaces of the core layer.