Patent ID: 6900529
Filing Date: 2005-05-31
Classification: H01L,H05K

Abstract:
1. A package carrier comprising: a dielectric body having upper and lower parallel major planar surfaces; a first mounting pad array affixed to said upper major planar surface, said first mounting pad array sized to receive the leads of a first integrated circuit package; a second mounting pad array affixed to said lower major planar surface, each pad of said second array coupled to a pad of said first array by means of an internally plated aperture which extends between said upper major planar surface and said lower major surface; a set of carrier leads, each carrier lead conductively bonded to a pad of said second array, said set of carrier leads spaced and configured for surface mounting on a printed circuit board; and wherein laminar extensions of said carrier leads serve as a heat sink for a second integrated circuit package which mounts between said printed circuit board and said lower major planar surface.