发明申请
US20120091576A1 UNDER-BUMP METALLIZATION (UBM) STRUCTURE AND METHOD OF FORMING THE SAME 有权
底层金属化(UBM)结构及其形成方法

UNDER-BUMP METALLIZATION (UBM) STRUCTURE AND METHOD OF FORMING THE SAME
摘要:
An under-bump metallization (UBM) structure in a semiconductor device includes a copper layer, a nickel layer, and a Cu—Ni—Sn intermetallic compound (IMC) layer between the copper layer and the nickel layer.
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