Patent ID: 6420204
Filing Date: 2002-07-16
Classification: H01L

Abstract:
A method of making a package for an integrated circuit device comprising:providing a metal leadframe, said leadframe including a die pad and a plurality of leads, wherein said die pad and said leads include a first surface, an opposite second surface, and a side surface between the first surface and the second surface; molding a base of an adhesive insulative material to the leadframe, so that the second surface and side surface of the die pad and the second surface and side surface of a first portion of the leads are covered with the insulative material of the base, and the first surfaces of the die pad and of the first portion of the leads are exposed at a first surface of the base; providing an integrated circuit device having a first surface that includes a light sensitive portion, and an opposite second surface; placing the second surface of the integrated circuit device on the first surface of the die pad; electrically connecting the integrated circuit device and the first portion of each of said leads; applying a viscous adhesive bead on the first surface of the base around said integrated circuit device, said bead extending to a height above the first surface of the integrated circuit device; providing an optically clear planar cover having a first surface; placing said first surface of the cover on said adhesive bead around said integrated circuit device, so that said cover transmits light to said light sensitive portion and said integrated circuit device is enclosed in a cavity formed by the first surface of said base, said adhesive bead, and said first surface of said cover; and hardening said adhesive bead, so that said adhesive bead supports said optically clear cover above said integrated circuit device.