Patent ID: 8445998
Filing Date: 2013-05-21
Classification: H01L

Abstract:
1. A split-die paddle semiconductor package, comprising; an arrangement of conductive leadframe pins, at least some of said leadframe pins electrically isolated from other of said leadframe pins; an arrangement of two conductive die-paddle portions electrically isolated from each other and having portions thereof defining a support surface for a semiconductor die; a semiconductor die having at least four substantially linear sides, each side formed substantially orthogonal relative to an adjacent side, a first set of said sides defined by two substantially parallel spaced-apart sides and a second set of said sides defined by two other substantially parallel spaced-apart sides, a first axis defined at a position midway between said sides defining said first set and a second axis orthogonal to said first axis, defined at a position midway between said sides defining said second set, said semiconductor die having a plurality of conductive pads for effecting an electrical connection with circuitry on or within said semiconductor die, said semiconductor die having at least one mounting surface, said mounting surface of said semiconductor die mounted on or attached to said support surface defined by said die paddle portions; bonding wires connecting selected ones of said conductive pads to at least a corresponding selected one of said leadframe pins; and a molding compound surrounding said semiconductor die and at least said portions of said die paddle portions defining said support surface; at least some of said portions of said die paddle portions defining said support surface extending across both said first and second orthogonal axes to reduce or restrain thermally induced growth of the package consequent to thermal expansion of the molding compound relative to at least the semiconductor die, said die paddle portions spaced-apart from one another by a curvilinear path having a first path portion on first side of the first axis and a first side of the second axis, a second path portion on the other side of the first axis and the other side of the second axis, and a curved path portion connecting the first and second path portions, the intersection of the first and second axes within the curved path portion.