Post passivation interconnection schemes on top of IC chip

Details Post passivation interconnection schemes on top of IC chip Post passivation interconnection schemes on top of IC chip

2011-03-29

2011-03-29

Ghyka, Alexander G (Department: 2812)

Semiconductor device manufacturing: process

Coating with electrically or thermally conductive material

To form ohmic contact to semiconductive material

C438S623000, C438S637000, C438S645000, C257SE21495, C257SE23144

Reexamination Certificate

active

07915161

ABSTRACT:
A new method is provided for the creation of interconnect lines. Fine line interconnects are provided in a first layer of dielectric overlying semiconductor circuits that have been created in or on the surface of a substrate. A layer of passivation is deposited over the layer of dielectric, a thick second layer of dielectric is created over the surface of the layer of passivation. Thick and wide interconnect lines are created in the thick second layer of dielectric. The first layer of dielectric may also be eliminated, creating the wide thick interconnect network on the surface of the layer of passivation that has been deposited over the surface of a substrate.

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