发明授权
US08569897B2 Protection layer for preventing UBM layer from chemical attack and oxidation 有权
防止UBM层受化学侵蚀和氧化的保护层

Protection layer for preventing UBM layer from chemical attack and oxidation
摘要:
A protection layer formed of a CuGeyNz layer, a CuSixNz layer, a CuSixGeyNz layer or combinations thereof is formed on an under-bump metallurgy (UBM) layer for preventing the UBM layer from chemical attack and oxidation during subsequent processes.
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