Patent ID: 8813354
Filing Date: 2014-08-26
Classification: H01L,H05K,Y10T

Abstract:
1. An electromagnetic interference shielding structure manufacturing method, the steps comprising: disposing at least one chip unit on the surface of a substrate; forming a packing layer on the substrate and covering the chip unit; performing a sputtering manufacturing process to form a first shielding layer over the outer surface of the packing layer and the lateral surface of the substrate, wherein the first shielding layer comprises a first stainless steel sputtering layer and a copper sputtering layer; performing a chemical electroless plating process to form a second shielding layer over the outer surface of the first shielding layer after the first shielding layer is formed, wherein the second shielding layer is a chemical copper plating layer; and performing a sputtering manufacturing process to form a third shielding layer over the outer surface of the second shielding layer after the second shielding layer is formed, wherein the third shielding layer is a second stainless steel sputtering layer.