Invention Grant
US08294264B2 Radiate under-bump metallization structure for semiconductor devices 有权
用于半导体器件的辐射凸块下金属化结构

Radiate under-bump metallization structure for semiconductor devices
Abstract:
An under-bump metallization (UBM) structure for a semiconductor device is provided. The UBM structure has a center portion and extensions extending out from the center portion. The extensions may have any suitable shape, including a quadrangle, a triangle, a circle, a fan, a fan with extensions, or a modified quadrangle having a curved surface. Adjacent UBM structures may have the respective extensions aligned or rotated relative to each other. Flux may be applied to a portion of the extensions to allow an overlying conductive bump to adhere to a part of the extensions.
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