Patent ID: 7245007
Filing Date: 2007-07-17
Classification: H01L

Abstract:
1. An interposer for use in a semiconductor package, the interposer comprising: an interposer body molded from a dielectric material, the interposer body defining opposed top and bottom surfaces, an outer peripheral edge, and an inner peripheral edge; a die pad having opposed top and bottom surfaces and a peripheral edge, the die pad being embedded within the interposer body such that the bottom surface of the die pad is exposed in and substantially flush with the bottom surface of the interposer body, the inner peripheral edge of the interposer body and the top surface of the die pad collectively defining a cavity of the interposer; and a plurality of electrically conductive interposer leads embedded within the interposer body, each of the interposer leads defining a finger portion having a top surface which is exposed in and substantially flush with the top surface of the interposer body, the finger portion of each of the interposer leads having an interior terminal end which extends to the cavity and an exterior terminal end which extends beyond the outer peripheral edge of the interposer body, each of the interposer leads further including a downset which is formed within the finger portion thereof in close proximity to the exterior terminal end, the downset being partially covered by the interposer body and defining a land which is exposed in and substantially contiguous with the bottom surface of the interposer body; the interposer body forming a non-conductive barrier between each of the interposer leads and between the interposer leads and the die pad.