Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material
Reexamination Certificate
2006-01-17
2006-01-17
Lee, Hsien-Ming (Department: 2823)
Semiconductor device manufacturing: process
Coating with electrically or thermally conductive material
To form ohmic contact to semiconductive material
C438S613000, C438S614000, C438S627000, C438S643000, C438S692000
Reexamination Certificate
active
06987057
ABSTRACT:
An bonding pad structure has a passivation layer over a copper layer having a pad window to expose a portion of the copper layer, a barrier layer conformal to a profile of the pad window, and an aluminum pad located in the pad window. The metal layer can be an aluminum, aluminum alloy or aluminum dominated layer for providing a better adhesion property between the copper layer and the bonding wire.
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patent: 6222279 (2001-04-01), Mis et al.
patent: 6362528 (2002-03-01), Anand
patent: 6376353 (2002-04-01), Zhou et al.
Huang Yimin
Lee Ellis
Yew Tri-Rung
J.C. Patents
United Microelectronics Corp.
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