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Semiconductor device with nested rows of contacts










Image Number 4 for United States Patent #8080448.

A method of making semiconductor devices includes producing an array of first lead frames having rows of first electrical contact elements on respective sides. Sub-assemblies are produced by applying a first molding compound peripherally to provide support between the first electrical contact elements of each of the first lead frames, and singulating the sub-assemblies. An array of assemblies is produced, each of which includes a second lead frame having rows of second electrical contact elements on respective sides, a respective one of the sub-assemblies disposed in the second lead frame with the rows of first electrical contact elements nested adjacent to and inside the rows of second electrical contact elements, and a semiconductor die mounted on the sub-assembly. The assemblies are encapsulated using a second molding compound with the rows of first and second electrical contact elements exposed on adjacent sides of an active face of the respective assembly.








 
 
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