Patent ID: 9735120
Date: 2017-08-15
CPC Classifications: H01L

Claim:
1. A package assembly comprising: a die having a first side and a second side opposite the first side, wherein the die includes one or more traces on the first side; one or more pads, wherein a first pad of the one or more pads has a first side and a second side opposite the first side, the first side of the first pad is coupled with the first side of the die and one of the one or more traces; a metal outer layer directly coupled to, and positioned over, the second side of the first pad, wherein the outer layer partially covers an edge part of the second side of the first pad, and a middle part of the second side of the first pad is not covered by the outer layer; a solder ball directly coupled with the second side of the first pad; and a barrier layer directly coupled with the first side of the first pad and disposed between the first side of the first pad and the first side of the die.