Patent ID: 8461461

Claim:
An embedded substrate having a circuit layer element with an oblique side surface, comprising: a dielectric layer, having an upper surface and an accommodating groove, wherein the accommodating groove opens at the upper surface; and a circuit layer element, disposed in the accommodating groove of the dielectric layer, wherein the circuit layer element comprises: an upper surface, wherein the elevation of the upper surface is equal to or lower than that of the upper surface of the dielectric layer; a chemical copper layer, disposed on the wall of the accommodating groove, wherein the chemical copper layer comprises palladium (Pd); a plating copper layer, disposed on the chemical copper layer; and an oblique side surface, connecting the wall of the accommodating groove, wherein the oblique side surface is not coplanar with the upper surface of the circuit layer element, and a distance is formed between the oblique side surface and the wall of the accommodating groove.