Patent ID: 8884424

Claim:
A multilayer substrate, comprising: a first outer conductive patterned layer; a first insulating layer exposing a portion of the first outer conductive patterned layer to define a first set of pads; a second outer conductive patterned layer; a second insulating layer exposing a portion of the second outer conductive patterned layer to define a second set of pads; and a plurality of inner layers disposed between the first outer conductive patterned layer and the second outer conductive patterned layer, each of the plurality of inner layers electrically connected with at least one of the first outer conductive patterned layer and the second outer conductive patterned layer, and each of the plurality of inner layers including: an inner conductive patterned layer; a plurality of inner conductive posts formed adjacent to the inner conductive patterned layer; and an inner dielectric layer; wherein the inner conductive patterned layer and the plurality of inner conductive posts are embedded in the inner dielectric layer, and a top surface of each of the plurality of inner conductive posts is exposed from the inner dielectric layer; and wherein the inner dielectric layer includes a fiber-reinforced resin material, and fibers adjacent to the inner conductive posts are pushed along vertically extending directions of the inner conductive posts and away from the inner conductive patterned layer.