Methods of forming capacitor constructions

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating selected area

Reexamination Certificate

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C205S157000, C438S239000, C438S243000

Reexamination Certificate

active

06984301

ABSTRACT:
The invention includes methods of electrochemically treating semiconductor substrates. The invention includes a method of electroplating a substance. A substrate having defined first and second regions is provided. The first and second regions can be defined by a single mask, and accordingly can be considered to be self-aligned relative to one another. A first electrically conductive material is formed over the first region, and a second electrically conductive material is formed over the second region. The first and second electrically conductive materials are exposed to an electrolytic solution while providing electrical current to the first and second electrically conductive materials. A desired substance is selectively electroplated onto the first electrically conductive material during the exposing of the first and second electrically conductive materials to the electrolytic solution. The invention also includes methods of forming capacitor constructions.

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