Patent ID: 8053906

Claim:
A semiconductor package comprising: a carrier; a chip disposed on the carrier, wherein the chip has a first surface and a second surface opposite to the first surface; a pad disposed on the first surface of the chip; a copper bonding wire comprising: a line portion; and a non-spherical block portion physically connected to the line portion, wherein the cross-sectional area of the non-spherical block portion is bigger than that of the line portion, the non-spherical block portion is bonded to the pad, and the bonding interface between the pad and the non-spherical block portion is a non-circular cross-section, and wherein the non-spherical block portion has a bottom surface provided with at least one first pattern, and the first pattern has a saw-toothed cross-section; and a molding compound for sealing the chip and the copper bonding wire and covering the carrier.