Invention Grant
US09553060B2 Semiconductor device and manufacturing method therefor 有权
半导体装置及其制造方法

Semiconductor device and manufacturing method therefor
Abstract:
Provided are a semiconductor device and a manufacturing method therefor that can prevent electric short-circuiting between redistribution lines. A barrier film is formed over each side surface of a copper redistribution line. The barrier film includes, for example, a manganese oxide film. The barrier film is also in contact with each end surface of a barrier metal film that is located in the position receding inward from the side surface of the copper redistribution line. A redistribution portion is formed by the copper redistribution line, the barrier film, and the barrier metal film.
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