Side wall passivation films for damascene cu/low k...

Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material

Reexamination Certificate

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C438S634000, C438S637000, C438S643000, C438S644000

Reexamination Certificate

active

06878620

ABSTRACT:
Methods and apparatus for protecting the dielectric layer sidewalls of openings, such as vias and trenches, in semiconductor substrates are provided. A pre-liner and a liner are deposited over the sidewalls of the openings as part of integrated processing sequences that either do not remove the photoresist until subsequent processing or remove the photoresist with a plasma etch that does not contaminate the sidewalls of the openings.

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