Patent ID: 11937366
Assignee: UNIMICRON TECHNOLOGY CORP.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A circuit signal enhancement structure of a circuit board, comprising:
a core layer;
a first substrate body, having a first signal transmission circuit layer and disposed on a core layer upper surface of the core layer;
a second substrate body, having a second signal transmission circuit layer and disposed on a core layer bottom surface of the core layer;
a third substrate body, disposed on the first substrate body, and having a third signal transmission circuit layer and a first recess;
a fourth substrate body, disposed on the second substrate body, and having a fourth signal transmission circuit layer and a second recess;
a first signal enhancement circuit layer, disposed in the first recess, and partially disposed around a side of the first signal transmission circuit layer; wherein the first signal enhancement circuit layer has a first dielectric coefficient less than a dielectric coefficient of the first substrate body and a first dielectric loss coefficient less than a dielectric loss coefficient of the first substrate body;
a second signal enhancement circuit layer, disposed in the second recess, and partially disposed around a side of the second signal transmission circuit layer; wherein the second signal enhancement circuit layer has a second dielectric coefficient less than a dielectric coefficient of the second substrate body and a second dielectric loss coefficient less than a dielectric loss coefficient of the second substrate body;
wherein the first signal transmission circuit layer, the second signal transmission circuit layer, the third signal transmission circuit layer, and the fourth signal transmission circuit layer are partially electrically connected to each other.