Patent ID: 6198163
Filing Date: 2001-03-06
Classification: H01L

Abstract:
A leadframe for a semiconductor package, comprising:a frame, including a central region within the frame;a plurality of metal leads extending in a common, horizontal plane from an outer portion integral with the frame to an inner portion adjacent to the central region;a plate disposed in the central region and parallel to the plane of the leads, the plate including a first surface and an opposite, second surface;wherein the first surface of the plate is closer to the plane of the leads than the second surface;wherein the first surface of the plate includes a recessed planar central portion and a peripheral portion surrounding the central portion, the peripheral portion being vertically closer to the plane of the leads than the central portion and defining a conductor down-bonding surface that is parallel to and spaced apart vertically from the plane of the leads; and,wherein the down-bonding surface is plated with a metal to facilitate the making of wire bonds thereto.