The present invention relates to a method for fabricating high performance
chip interconnects and packages by providing methods for depositing a
conductive material in cavities of a substrate in a more efficient and
time saving manner. This is accomplished by selectively removing portions
of a seed layer from a top surface of a substrate and then depositing a
conductive material in the cavities of the substrate, where portions of
the seed layer remains in the cavities. Another method includes forming
an oxide layer on the top surface of the substrate such that the
conductive material can be deposited in the cavities without the material
being formed on the top surface of the substrate. The present invention
also discloses methods for forming multi-level interconnects and the
corresponding structures.