Circuit board structure

A circuit board structure includes a dielectric board body and a metal via-filling structure. The dielectric board body is provided with a via, and a metal base is at the bottom of the via. The metal via-hole filling structure is on the metal base and fills the via, wherein an average misorientation angle between the surface of the metal base and the bottom of the metal via-filling structure is less than seven degrees. By controlling the average misorientation angle between the surface of the metal base and the bottom of the metal via-filling structure to be less than seven degrees, the crystal coherency between crystals can be increased, and the overall mechanical properties and electrical properties can be improved.