PACKAGED INTEGRATED CIRCUIT DEVICES

摘要

An integrated circuit device (100) comprises an integrated circuit (104) encapsulated in a protective package (108). The integrated circuit (104) incorporates at least one active element, which may be a sensing element or a radiation emitting means. The integrated circuit (104) is mounted on and electrically connected to an interposer (103). The interposer (103) has a substantially identical coefficient of thermal expansion to the integrated circuit (104). The interposer (103) is glued to a lead frame (102). The integrated circuit (104) is electrically connected to the interposer (103) by means of bond wires (106) and the interposer (103) is electrically connected to the peripheral portions (101) of the lead frame (102) by means of bond wires (105). Once the integrated circuit (104), interposer (103) and lead frame (102) have been mounted upon one another and electrically connected, the blob of gel (107) is dispensed onto the top surface of said integrated circuit (104) to form a gel covered assembly. The gel coated assembly is inserted into the cavity of a mould tool. Said cavity is provided with a projection, (110) on its inner surface that is adapted to make contact with said gel blob (107). Plastic moulding compound (108) is then injected into the mould cavity to encapsulate the device in a protective package.