Method for fabricating a package-in-package for high heat dissipation

Abstract

A method for fabricating a semiconductor system starts with providing a first component including a first semiconductor chip attached to a pad of a first metal leadframe made of a first metal sheet of high thermal conductivity. A second component including a second semiconductor chip attached to a pad of a second metal leadframe made of a second metal sheet wire-bondable on both surfaces is provided. The second component is encapsulated in a polymeric housing leaving un-encapsulated the lead surfaces facing away from the second chip. The polymeric housing of the second component is attached to the first chip using a layer of low thermal conductivity, whereby the un-encapsulated lead surfaces face away from the first chip. Bonding wires are connected to the un-encapsulated surfaces of the second component leads to the leads of the first component.

Dependencies are inferred from the claim text.