Through substrate via structure and manufacturing method thereof, redistribution layer structure and manufacturing method thereof
Abstract:
A through substrate via structure and a manufacturing method thereof, and a redistribution layer structure and a manufacturing method thereof are provided. The through substrate via structure includes a columnar conductive layer and a nanotwinned metal film disposed at least around the conductive layer. In a cross-section of the through substrate via structure, relative to a total area of the conductive layer and the nanotwinned metal film, an area ratio of the nanotwinned metal film is 50% or less by area.
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