Patent ID: 7731078
Filing Date: 2010-06-08
Classification: H01L

Abstract:
1. A semiconductor package system comprising: a die having a plurality of contact pads; a leadframe having a plurality of lead fingers with flat tops of predetermined lengths, the plurality of lead fingers having a fine pitch and each having a trapezoidal cross-section; a plurality of bumps on the plurality of lead fingers, the plurality of bumps on the tops, extending beyond the widths of the trapezoidal cross-sections, and clamping down on the two sides of each of the plurality of lead fingers; a plurality of bond wires attached to the plurality of contact pads, the plurality of bond wires to the plurality of bumps; and an encapsulant over the plurality of lead fingers, the die, and the plurality of bond wires, the encapsulant with lower surfaces of the plurality of lead fingers exposed.