Patent ID: 6689640
Filing Date: 2004-02-10
Classification: H01L

Abstract:
A method for packaging integrated circuits, comprising:providing a lead frame of a conductive material with an array of lead posts that are equally spaced apart and a connecting sheet connecting each of the lead pots; attaching a plurality of fist dice to the lead frame, wherein each first die is electrically and mechanically connected to a plurality of lead posts within the array of lead posts, and wherein a conductive side of each first die faces the lead posts; encapsulating the plurality of dice with an encapsulating material; and removing a thin portion of the connecting sheet between each of the lead posts to electrically isolate each of the lead posts wherein an unremoved portion of the connecting sheet remains connected to each lead post and forms an oversized contact pad on a bottom surface of the packaged integrated circuits, wherein the oversized contact pad has a diameter that is larger than a diameter of each of the lead posts.