Patent ID: 8704345
Filing Date: 2014-04-22
Classification: H01L

Abstract:
1. A semiconductor package at least including: a lead frame having a plurality of leads, each lead comprises a first end portion, a half-etched portion in connection with the first end portion and at least one coupling protrusion, wherein the first end portion comprises a first upper surface and a first lower surface, the half-etched portion comprises a second upper surface and a second lower surface, the coupling protrusion is integrally formed as one piece with the first upper surface and comprises a ring surface; at least one chip disposed on top of the leads, said chip comprises a plurality of bumps and a plurality of solders formed at the bumps, the coupling protrusions embed into the solders to make the ring surfaces of the coupling protrusions cladded with the solders, and the solders partially cover the first upper surfaces; and a molding compound for exposing the first lower surface of each of the first end portions, wherein the chip and the leads are partially cladded with said molding compound.