Patent ID: 8810047

Claim:
A semiconductor device comprising: a substrate including a first surface, a second surface opposite to the first surface, and a plurality of lands formed on the second surface, and the substrate further including a solder resist film formed on the second surface so as to expose the plurality of lands; a semiconductor chip mounted over the first surface of the substrate, the semiconductor chip being electrically connected to the plurality of lands; a first seal provided over the first surface of the substrate to cover the semiconductor chip; a plurality of conductors provided on the plurality of lands of the substrate, respectively; a second seal provided over substantially an entirety of the solder resist film of the substrate so that parts of the plurality of conductors expose from the second seal; and a plurality of solder balls connected to the parts of the plurality of conductors, wherein the first seal comprises first and second edges that are substantially aligned with first and second edges of the second seal, respectively, and the second seal is continuously formed between the first and second edges of the second seal, and wherein the plurality of conductors have a thickness substantially equal to a thickness of the second seal.