Patent ID: 8080448
Filing Date: 2011-12-20
Classification: H01L

Abstract:
1. A method of making semiconductor devices, comprising: providing an array of first lead frames, each of which comprises a plurality of rows of first electrical contact elements on respective sides thereof; applying a first molding compound to said array of first lead frames to provide support between said first electrical contact elements of each of said first lead frames, and singulating said first lead frames to produce a plurality of sub-assemblies; providing a plurality of second lead frames each of which comprises a plurality of rows of second electrical contact elements on respective sides thereof, placing a respective one of said sub-assemblies inside one of said second lead frames, wherein said rows of first electrical contact elements are nested adjacent to and inside said rows of second electrical contact elements, and attaching a semiconductor die on said respective ones of said sub-assemblies; connecting each of said semiconductor dies electrically to said first and second electrical contact elements of the respective first and second lead frames, thereby forming a plurality of assemblies; encapsulating said assemblies using a second molding compound, wherein said rows of first and second electrical contact elements are exposed on adjacent sides of an active face of the respective semiconductor device; and singulating said assemblies.