Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2005-04-12
2005-04-12
La Villa, Michael (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S674000, C428S652000, C428S645000, C428S336000, C428S660000, C428S688000, C428S700000, C428S614000, C438S688000, C438S761000, C438S614000, C257S771000, C257S781000
Reexamination Certificate
active
06878465
ABSTRACT:
The present invention describes a method including providing a component, the component having a bond pad; forming a passivation layer over the component; forming a via in the passivation layer to uncover the bond pad; and forming an under bump metallurgy (UBM) over the passivation layer, in the via, and over the bond pad, in which the UBM includes an alloy of Aluminum and Magnesium.The present invention also describes an under bump metallurgy (UBM) that includes a lower layer, the lower layer including an alloy of Aluminum and Magnesium; and an upper layer located over the lower layer.
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Datta Madhav
Ma Zhiyong
Moon Peter K.
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