Methods for forming roughened surfaces and applications thereof
First Claim
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1. A method for forming a roughened surface on a substrate, comprising:
- depositing a metal oxide film on the substrate; and
reducing the metal oxide at a temperature at which agglomeration occurs.
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Abstract
Methods of forming a roughened metal surface on a substrate are provided, along with structures comprising such roughened surfaces. In preferred embodiments roughened surfaces are formed by selectively depositing metal or metal oxide on a substrate surface to form discrete, three-dimensional islands. Selective deposition may be obtained, for example, by modifying process conditions to cause metal agglomeration or by treating the substrate surface to provide a limited number of discontinuous reactive sites. The roughened metal surface may be used, for example, in the manufacture of integrated circuits.
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22 Claims
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1. A method for forming a roughened surface on a substrate, comprising:
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depositing a metal oxide film on the substrate; and reducing the metal oxide at a temperature at which agglomeration occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for forming a roughened surface on a substrate, comprising:
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depositing a metal oxide on the substrate by providing vapor phase reactants to the substrate; and reducing the metal oxide at a temperature at which agglomeration occurs.
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Specification