A method for manufacturing an electronic package includes: forming a middle patterned conductive layer having a first surface, a second surface opposite to the first surface, and a plurality of middle conductive pads; forming a first redistribution circuitry on the first surface, wherein the first redistribution circuitry includes a first patterned conductive layer having a plurality of first conductive elements, each first conductive element has a first conductive via and pad that form a T-shaped section, and each first conductive via connects the corresponding middle conductive pad and is tapering; and forming a second redistribution circuitry on the second surface, wherein the second redistribution circuitry includes a second patterned conductive layer having a plurality of second conductive elements, each second conductive element has a second conductive via and pad that form an inversed T-shaped section, and each second conductive via connects the corresponding middle conductive pad and is tapering.