Methods for forming patterned structures
First Claim
1. A method, comprising:
- forming a first layer comprising a first material over a surface of a second layer, wherein;
forming the first layer comprises sequentially forming a plurality of monolayers of the second material over the surface of the second layer,the second layer comprises a plurality of rows of a second material extending along a first direction and spaced from one another in a second direction orthogonal to the first direction, andthe first layer conforms to the surface of the second layer;
removing portions of the first layer to produce a plurality of rows of the first material extending along the first direction and spaced from one another in the second direction; and
removing portions of a third layer comprising a third material, where the portions correspond to intervals between the second plurality of rows so that removing the portions forms a plurality of rows of the third material extending along the first direction and spaced apart from one another,wherein the first and second materials are different.
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Accused Products
Abstract
In general, in a first aspect, the invention features a method that includes forming a first layer comprising a first material over a surface of a second layer, wherein forming the first layer includes sequentially forming a plurality of monolayers of the second material over the surface of the second layer, the second layer comprises a plurality of rows of a second material extending along a first direction and spaced from one another in a second direction orthogonal to the first direction, and the first layer conforms to the surface of the second layer. The method further includes removing portions of the first layer to produce a plurality of rows of the first material extending along the first direction and spaced from one another in the second direction and removing portions of a third layer comprising a third material, where the portions correspond to intervals between the second plurality of rows so that removing the portions forms a plurality of rows of the third material extending along the first direction and spaced apart from one another. The first and second materials are different.
48 Citations
28 Claims
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1. A method, comprising:
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forming a first layer comprising a first material over a surface of a second layer, wherein; forming the first layer comprises sequentially forming a plurality of monolayers of the second material over the surface of the second layer, the second layer comprises a plurality of rows of a second material extending along a first direction and spaced from one another in a second direction orthogonal to the first direction, and the first layer conforms to the surface of the second layer; removing portions of the first layer to produce a plurality of rows of the first material extending along the first direction and spaced from one another in the second direction; and removing portions of a third layer comprising a third material, where the portions correspond to intervals between the second plurality of rows so that removing the portions forms a plurality of rows of the third material extending along the first direction and spaced apart from one another, wherein the first and second materials are different. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method, comprising:
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using atomic layer deposition to form a layer of a first material over a plurality of spaced-apart ridges of a second material, the ridges of the second material being supported by a layer of a third material; removing portions of the layer of the first material to form a plurality of spaced-apart ridges of the first material, wherein adjacent ridges of the second material are separated by two ridges of the first material; and removing portions of the layer of the third material from between the ridges of the first material to provide a plurality of spaced-apart ridges of the third material.
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Specification